42 files changed, 3934 insertions, 374 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
new file mode 100644
index 000000000000..ad1125b02ff4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
@@ -0,0 +1,98 @@
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/actual_cpi
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    It is possible to switch the cpi setting of the mouse with the
+                press of a button.
+                When read, this file returns the raw number of the actual cpi
+                setting reported by the mouse. This number has to be further
+                processed to receive the real dpi value.
+                VALUE DPI
+                1     400
+                2     800
+                4     1600
+                This file is readonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/actual_profile
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    When read, this file returns the number of the actual profile in
+                range 0-4.
+                This file is readonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/firmware_version
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    When read, this file returns the raw integer version number of the
+                firmware reported by the mouse. Using the integer value eases
+                further usage in other programs. To receive the real version
+                number the decimal point has to be shifted 2 positions to the
+                left. E.g. a returned value of 138 means 1.38
+                This file is readonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile_settings
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    The mouse can store 5 profiles which can be switched by the
+                press of a button. A profile is split in settings and buttons.
+                profile_settings holds informations like resolution, sensitivity
+                and light effects.
+                When written, this file lets one write the respective profile
+                settings back to the mouse. The data has to be 13 bytes long.
+                The mouse will reject invalid data.
+                Which profile to write is determined by the profile number
+                contained in the data.
+                This file is writeonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile[1-5]_settings
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    The mouse can store 5 profiles which can be switched by the
+                press of a button. A profile is split in settings and buttons.
+                profile_settings holds informations like resolution, sensitivity
+                and light effects.
+                When read, these files return the respective profile settings.
+                The returned data is 13 bytes in size.
+                This file is readonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile_buttons
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    The mouse can store 5 profiles which can be switched by the
+                press of a button. A profile is split in settings and buttons.
+                profile_buttons holds informations about button layout.
+                When written, this file lets one write the respective profile
+                buttons back to the mouse. The data has to be 19 bytes long.
+                The mouse will reject invalid data.
+                Which profile to write is determined by the profile number
+                contained in the data.
+                This file is writeonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile[1-5]_buttons
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    The mouse can store 5 profiles which can be switched by the
+                press of a button. A profile is split in settings and buttons.
+                profile_buttons holds informations about button layout.
+                When read, these files return the respective profile buttons.
+                The returned data is 19 bytes in size.
+                This file is readonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/startup_profile
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    The integer value of this attribute ranges from 0-4.
+                When read, this attribute returns the number of the profile
+                that's active when the mouse is powered on.
+                This file is readonly.
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/settings
+Date:           August 2010
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    When read, this file returns the settings stored in the mouse.
+                The size of the data is 3 bytes and holds information on the
+                startup_profile.
+                When written, this file lets write settings back to the mouse.
+                The data has to be 3 bytes long. The mouse will reject invalid
+                data.
diff --git a/Documentation/input/ntrig.txt b/Documentation/input/ntrig.txt
new file mode 100644
index 000000000000..be1fd981f73f
--- /dev/null
+++ b/Documentation/input/ntrig.txt
@@ -0,0 +1,126 @@
+N-Trig touchscreen Driver
+-------------------------
+        Copyright (c) 2008-2010 Rafi Rubin <rafi@seas.upenn.edu>
+        Copyright (c) 2009-2010 Stephane Chatty
+This driver provides support for N-Trig pen and multi-touch sensors.  Single
+and multi-touch events are translated to the appropriate protocols for
+the hid and input systems.  Pen events are sufficiently hid compliant and
+are left to the hid core.  The driver also provides additional filtering
+and utility functions accessible with sysfs and module parameters.
+This driver has been reported to work properly with multiple N-Trig devices
+attached.
+Parameters
+----------
+Note: values set at load time are global and will apply to all applicable
+devices.  Adjusting parameters with sysfs will override the load time values,
+but only for that one device.
+The following parameters are used to configure filters to reduce noise:
+activate_slack          number of fingers to ignore before processing events
+activation_height       size threshold to activate immediately
+activation_width
+min_height              size threshold bellow which fingers are ignored
+min_width               both to decide activation and during activity
+deactivate_slack        the number of "no contact" frames to ignore before
+                        propagating the end of activity events
+When the last finger is removed from the device, it sends a number of empty
+frames.  By holding off on deactivation for a few frames we can tolerate false
+erroneous disconnects, where the sensor may mistakenly not detect a finger that
+is still present.  Thus deactivate_slack addresses problems where a users might
+see breaks in lines during drawing, or drop an object during a long drag.
+Additional sysfs items
+----------------------
+These nodes just provide easy access to the ranges reported by the device.
+sensor_logical_height   the range for positions reported during activity
+sensor_logical_width
+sensor_physical_height  internal ranges not used for normal events but
+sensor_physical_width   useful for tuning
+All N-Trig devices with product id of 1 report events in the ranges of
+X: 0-9600
+Y: 0-7200
+However not all of these devices have the same physical dimensions.  Most
+seem to be 12" sensors (Dell Latitude XT and XT2 and the HP TX2), and
+at least one model (Dell Studio 17) has a 17" sensor.  The ratio of physical
+to logical sizes is used to adjust the size based filter parameters.
+Filtering
+---------
+With the release of the early multi-touch firmwares it became increasingly
+obvious that these sensors were prone to erroneous events.  Users reported
+seeing both inappropriately dropped contact and ghosts, contacts reported
+where no finger was actually touching the screen.
+Deactivation slack helps prevent dropped contact for single touch use, but does
+not address the problem of dropping one of more contacts while other contacts
+are still active.  Drops in the multi-touch context require additional
+processing and should be handled in tandem with tacking.
+As observed ghost contacts are similar to actual use of the sensor, but they
+seem to have different profiles.  Ghost activity typically shows up as small
+short lived touches.  As such, I assume that the longer the continuous stream
+of events the more likely those events are from a real contact, and that the
+larger the size of each contact the more likely it is real.  Balancing the
+goals of preventing ghosts and accepting real events quickly (to minimize
+user observable latency), the filter accumulates confidence for incoming
+events until it hits thresholds and begins propagating.  In the interest in
+minimizing stored state as well as the cost of operations to make a decision,
+I've kept that decision simple.
+Time is measured in terms of the number of fingers reported, not frames since
+the probability of multiple simultaneous ghosts is expected to drop off
+dramatically with increasing numbers.  Rather than accumulate weight as a
+function of size, I just use it as a binary threshold.  A sufficiently large
+contact immediately overrides the waiting period and leads to activation.
+Setting the activation size thresholds to large values will result in deciding
+primarily on activation slack.  If you see longer lived ghosts, turning up the
+activation slack while reducing the size thresholds may suffice to eliminate
+the ghosts while keeping the screen quite responsive to firm taps.
+Contacts continue to be filtered with min_height and min_width even after
+the initial activation filter is satisfied.  The intent is to provide
+a mechanism for filtering out ghosts in the form of an extra finger while
+you actually are using the screen.  In practice this sort of ghost has
+been far less problematic or relatively rare and I've left the defaults
+set to 0 for both parameters, effectively turning off that filter.
+I don't know what the optimal values are for these filters.  If the defaults
+don't work for you, please play with the parameters.  If you do find other
+values more comfortable, I would appreciate feedback.
+The calibration of these devices does drift over time.  If ghosts or contact
+dropping worsen and interfere with the normal usage of your device, try
+recalibrating it.
+Calibration
+-----------
+The N-Trig windows tools provide calibration and testing routines.  Also an
+unofficial unsupported set of user space tools including a calibrator is
+available at:
+http://code.launchpad.net/~rafi-seas/+junk/ntrig_calib
+Tracking
+--------
+As of yet, all tested N-Trig firmwares do not track fingers.  When multiple
+contacts are active they seem to be sorted primarily by Y position.
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 6369ba7f96f8..3052e2969ad0 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -56,20 +56,20 @@ menu "Special HID drivers"
        depends on HID
 config HID_3M_PCT
-        tristate "3M PCT"
+        tristate "3M PCT touchscreen"
        depends on USB_HID
        ---help---
        Support for 3M PCT touch screens.
 config HID_A4TECH
-        tristate "A4 tech" if EMBEDDED
+        tristate "A4 tech mice" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for A4 tech X5 and WOP-35 / Trust 450L mice.
 config HID_ACRUX_FF
-        tristate "ACRUX force feedback support"
+        tristate "ACRUX force feedback"
        depends on USB_HID
        select INPUT_FF_MEMLESS
        ---help---
@@ -77,7 +77,7 @@ config HID_ACRUX_FF
        game controllers.
 config HID_APPLE
-        tristate "Apple" if EMBEDDED
+        tristate "Apple {i,Power,Mac}Books" if EMBEDDED
        depends on (USB_HID || BT_HIDP)
        default !EMBEDDED
        ---help---
@@ -88,7 +88,7 @@ config HID_APPLE
        MacBooks, MacBook Pros and Apple Aluminum.
 config HID_BELKIN
-        tristate "Belkin" if EMBEDDED
+        tristate "Belkin Flip KVM and Wireless keyboard" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
@@ -101,14 +101,14 @@ config HID_CANDO
        Support for Cando dual touch panel.
 config HID_CHERRY
-        tristate "Cherry" if EMBEDDED
+        tristate "Cherry Cymotion keyboard" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for Cherry Cymotion keyboard.
 config HID_CHICONY
-        tristate "Chicony" if EMBEDDED
+        tristate "Chicony Tactical pad" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
@@ -130,20 +130,20 @@ config HID_PRODIKEYS
          and some additional multimedia keys.
 config HID_CYPRESS
-        tristate "Cypress" if EMBEDDED
+        tristate "Cypress mouse and barcode readers" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for cypress mouse and barcode readers.
 config HID_DRAGONRISE
-        tristate "DragonRise Inc. support"
+        tristate "DragonRise Inc. game controller"
        depends on USB_HID
        ---help---
        Say Y here if you have DragonRise Inc.game controllers.
 config DRAGONRISE_FF
-        bool "DragonRise Inc. force feedback support"
+        bool "DragonRise Inc. force feedback"
        depends on HID_DRAGONRISE
        select INPUT_FF_MEMLESS
        ---help---
@@ -157,46 +157,58 @@ config HID_EGALAX
        Support for the eGalax dual-touch panel.
 config HID_ELECOM
-        tristate "ELECOM"
+        tristate "ELECOM BM084 bluetooth mouse"
        depends on BT_HIDP
        ---help---
        Support for the ELECOM BM084 (bluetooth mouse).
 config HID_EZKEY
-        tristate "Ezkey" if EMBEDDED
+        tristate "Ezkey BTC 8193 keyboard" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for Ezkey BTC 8193 keyboard.
 config HID_KYE
-        tristate "Kye" if EMBEDDED
+        tristate "Kye/Genius Ergo Mouse" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for Kye/Genius Ergo Mouse.
+config HID_UCLOGIC
+        tristate "UC-Logic"
+        depends on USB_HID
+        ---help---
+        Support for UC-Logic tablets.
+config HID_WALTOP
+        tristate "Waltop"
+        depends on USB_HID
+        ---help---
+        Support for Waltop tablets.
 config HID_GYRATION
-        tristate "Gyration"
+        tristate "Gyration remote control"
        depends on USB_HID
        ---help---
        Support for Gyration remote control.
 config HID_TWINHAN
-        tristate "Twinhan"
+        tristate "Twinhan IR remote control"
        depends on USB_HID
        ---help---
        Support for Twinhan IR remote control.
 config HID_KENSINGTON
-        tristate "Kensington" if EMBEDDED
+        tristate "Kensington Slimblade Trackball" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for Kensington Slimblade Trackball.
 config HID_LOGITECH
-        tristate "Logitech" if EMBEDDED
+        tristate "Logitech devices" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
@@ -220,12 +232,12 @@ config LOGITECH_FF
          force feedback.
 config LOGIRUMBLEPAD2_FF
-        bool "Logitech Rumblepad 2 force feedback support"
+        bool "Logitech RumblePad/Rumblepad 2 force feedback support"
        depends on HID_LOGITECH
        select INPUT_FF_MEMLESS
        help
          Say Y here if you want to enable force feedback support for Logitech
-          Rumblepad 2 devices.
+          RumblePad and Rumblepad 2 devices.
 config LOGIG940_FF
        bool "Logitech Flight System G940 force feedback support"
@@ -235,6 +247,14 @@ config LOGIG940_FF
          Say Y here if you want to enable force feedback support for Logitech
          Flight System G940 devices.
+config LOGIWII_FF
+        bool "Logitech Speed Force Wireless force feedback support"
+        depends on HID_LOGITECH
+        select INPUT_FF_MEMLESS
+        help
+          Say Y here if you want to enable force feedback support for Logitech
+          Speed Force Wireless (Wii) devices.
 config HID_MAGICMOUSE
        tristate "Apple MagicMouse multi-touch support"
        depends on BT_HIDP
@@ -245,39 +265,39 @@ config HID_MAGICMOUSE
        Apple Wireless "Magic" Mouse.
 config HID_MICROSOFT
-        tristate "Microsoft" if EMBEDDED
+        tristate "Microsoft non-fully HID-compliant devices" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for Microsoft devices that are not fully compliant with HID standard.
 config HID_MOSART
-        tristate "MosArt"
+        tristate "MosArt dual-touch panels"
        depends on USB_HID
        ---help---
        Support for MosArt dual-touch panels.
 config HID_MONTEREY
-        tristate "Monterey" if EMBEDDED
+        tristate "Monterey Genius KB29E keyboard" if EMBEDDED
        depends on USB_HID
        default !EMBEDDED
        ---help---
        Support for Monterey Genius KB29E.
 config HID_NTRIG
-        tristate "NTrig"
+        tristate "N-Trig touch screen"
        depends on USB_HID
        ---help---
        Support for N-Trig touch screen.
 config HID_ORTEK
-        tristate "Ortek"
+        tristate "Ortek WKB-2000 wireless keyboard and mouse trackpad"
        depends on USB_HID
        ---help---
        Support for Ortek WKB-2000 wireless keyboard + mouse trackpad.
 config HID_PANTHERLORD
-        tristate "Pantherlord support"
+        tristate "Pantherlord/GreenAsia game controller"
        depends on USB_HID
        ---help---
          Say Y here if you have a PantherLord/GreenAsia based game controller
@@ -292,7 +312,7 @@ config PANTHERLORD_FF
          or adapter and want to enable force feedback support for it.
 config HID_PETALYNX
-        tristate "Petalynx"
+        tristate "Petalynx Maxter remote control"
        depends on USB_HID
        ---help---
        Support for Petalynx Maxter remote control.
@@ -356,7 +376,7 @@ config HID_PICOLCD_LEDS
          Provide access to PicoLCD's GPO pins via leds class.
 config HID_QUANTA
-        tristate "Quanta Optical Touch"
+        tristate "Quanta Optical Touch panels"
        depends on USB_HID
        ---help---
        Support for Quanta Optical Touch dual-touch panels.
@@ -376,32 +396,39 @@ config HID_ROCCAT_KONE
        ---help---
        Support for Roccat Kone mouse.
+config HID_ROCCAT_PYRA
+        tristate "Roccat Pyra mouse support"
+        depends on USB_HID
+        select HID_ROCCAT
+        ---help---
+        Support for Roccat Pyra mouse.
 config HID_SAMSUNG
-        tristate "Samsung"
+        tristate "Samsung InfraRed remote control or keyboards"
        depends on USB_HID
        ---help---
        Support for Samsung InfraRed remote control or keyboards.
 config HID_SONY
-        tristate "Sony"
+        tristate "Sony PS3 controller"
        depends on USB_HID
        ---help---
        Support for Sony PS3 controller.
 config HID_STANTUM
-        tristate "Stantum"
+        tristate "Stantum multitouch panel"
        depends on USB_HID
        ---help---
        Support for Stantum multitouch panel.
 config HID_SUNPLUS
-        tristate "Sunplus"
+        tristate "Sunplus wireless desktop"
        depends on USB_HID
        ---help---
        Support for Sunplus wireless desktop.
 config HID_GREENASIA
-        tristate "GreenAsia (Product ID 0x12) support"
+        tristate "GreenAsia (Product ID 0x12) game controller support"
        depends on USB_HID
        ---help---
          Say Y here if you have a GreenAsia (Product ID 0x12) based game
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 46f037f3df80..c335605b9200 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -21,6 +21,9 @@ endif
 ifdef CONFIG_LOGIG940_FF
        hid-logitech-objs       += hid-lg3ff.o
 endif
+ifdef CONFIG_LOGIWII_FF
+        hid-logitech-objs       += hid-lg4ff.o
+endif
 obj-$(CONFIG_HID_3M_PCT)        += hid-3m-pct.o
 obj-$(CONFIG_HID_A4TECH)        += hid-a4tech.o
@@ -52,6 +55,7 @@ obj-$(CONFIG_HID_PETALYNX)	+= hid-petalynx.o
 obj-$(CONFIG_HID_PICOLCD)       += hid-picolcd.o
 obj-$(CONFIG_HID_ROCCAT)        += hid-roccat.o
 obj-$(CONFIG_HID_ROCCAT_KONE)   += hid-roccat-kone.o
+obj-$(CONFIG_HID_ROCCAT_PYRA)   += hid-roccat-pyra.o
 obj-$(CONFIG_HID_SAMSUNG)       += hid-samsung.o
 obj-$(CONFIG_HID_SMARTJOYPLUS)  += hid-sjoy.o
 obj-$(CONFIG_HID_SONY)          += hid-sony.o
@@ -61,9 +65,11 @@ obj-$(CONFIG_HID_GREENASIA)	+= hid-gaff.o
 obj-$(CONFIG_HID_THRUSTMASTER)  += hid-tmff.o
 obj-$(CONFIG_HID_TOPSEED)       += hid-topseed.o
 obj-$(CONFIG_HID_TWINHAN)       += hid-twinhan.o
+obj-$(CONFIG_HID_UCLOGIC)       += hid-uclogic.o
 obj-$(CONFIG_HID_ZEROPLUS)      += hid-zpff.o
 obj-$(CONFIG_HID_ZYDACRON)      += hid-zydacron.o
 obj-$(CONFIG_HID_WACOM)         += hid-wacom.o
+obj-$(CONFIG_HID_WALTOP)        += hid-waltop.o
 obj-$(CONFIG_USB_HID)           += usbhid/
 obj-$(CONFIG_USB_MOUSE)         += usbhid/
diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c
index 2a0d56b7a02b..02d8cd3b1b1b 100644
--- a/drivers/hid/hid-3m-pct.c
+++ b/drivers/hid/hid-3m-pct.c
@@ -2,6 +2,8 @@
 *  HID driver for 3M PCT multitouch panels
 *
 *  Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
+ *  Copyright (c) 2010      Henrik Rydberg <rydberg@euromail.se>
+ *  Copyright (c) 2010      Canonical, Ltd.
 *
 */
@@ -24,15 +26,26 @@ MODULE_LICENSE("GPL");
 #include "hid-ids.h"
+#define MAX_SLOTS               60
+#define MAX_TRKID               USHRT_MAX
+#define MAX_EVENTS              360
+/* estimated signal-to-noise ratios */
+#define SN_MOVE                 2048
+#define SN_WIDTH                128
 struct mmm_finger {
        __s32 x, y, w, h;
-        __u8 rank;
+        __u16 id;
+        bool prev_touch;
        bool touch, valid;
 };
 struct mmm_data {
-        struct mmm_finger f[10];
+        struct mmm_finger f[MAX_SLOTS];
-        __u8 curid, num;
+        __u16 id;
+        __u8 curid;
+        __u8 nexp, nreal;
        bool touch, valid;
 };
@@ -40,6 +53,10 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                struct hid_field *field, struct hid_usage *usage,
                unsigned long **bit, int *max)
 {
+        int f1 = field->logical_minimum;
+        int f2 = field->logical_maximum;
+        int df = f2 - f1;
        switch (usage->hid & HID_USAGE_PAGE) {
        case HID_UP_BUTTON:
@@ -50,18 +67,20 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                case HID_GD_X:
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_POSITION_X);
+                        input_set_abs_params(hi->input, ABS_MT_POSITION_X,
+                                             f1, f2, df / SN_MOVE, 0);
                        /* touchscreen emulation */
                        input_set_abs_params(hi->input, ABS_X,
-                                                field->logical_minimum,
+                                             f1, f2, df / SN_MOVE, 0);
-                                                field->logical_maximum, 0, 0);
                        return 1;
                case HID_GD_Y:
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_POSITION_Y);
+                        input_set_abs_params(hi->input, ABS_MT_POSITION_Y,
+                                             f1, f2, df / SN_MOVE, 0);
                        /* touchscreen emulation */
                        input_set_abs_params(hi->input, ABS_Y,
-                                                field->logical_minimum,
+                                             f1, f2, df / SN_MOVE, 0);
-                                                field->logical_maximum, 0, 0);
                        return 1;
                }
                return 0;
@@ -81,21 +100,31 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                case HID_DG_TIPSWITCH:
                        /* touchscreen emulation */
                        hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+                        input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
                        return 1;
                case HID_DG_WIDTH:
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_TOUCH_MAJOR);
+                        input_set_abs_params(hi->input, ABS_MT_TOUCH_MAJOR,
+                                             f1, f2, df / SN_WIDTH, 0);
                        return 1;
                case HID_DG_HEIGHT:
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_TOUCH_MINOR);
+                        input_set_abs_params(hi->input, ABS_MT_TOUCH_MINOR,
+                                             f1, f2, df / SN_WIDTH, 0);
                        input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
-                                        1, 1, 0, 0);
+                                        0, 1, 0, 0);
                        return 1;
                case HID_DG_CONTACTID:
-                        field->logical_maximum = 59;
+                        field->logical_maximum = MAX_TRKID;
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_TRACKING_ID);
+                        input_set_abs_params(hi->input, ABS_MT_TRACKING_ID,
+                                             0, MAX_TRKID, 0, 0);
+                        if (!hi->input->mt)
+                                input_mt_create_slots(hi->input, MAX_SLOTS);
+                        input_set_events_per_packet(hi->input, MAX_EVENTS);
                        return 1;
                }
                /* let hid-input decide for the others */
@@ -113,10 +142,10 @@ static int mmm_input_mapped(struct hid_device *hdev, struct hid_input *hi,
                struct hid_field *field, struct hid_usage *usage,
                unsigned long **bit, int *max)
 {
+        /* tell hid-input to skip setup of these event types */
        if (usage->type == EV_KEY || usage->type == EV_ABS)
-                clear_bit(usage->code, *bit);
+                set_bit(usage->type, hi->input->evbit);
+        return -1;
-        return 0;
 }
 /*
@@ -126,70 +155,49 @@ static int mmm_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 static void mmm_filter_event(struct mmm_data *md, struct input_dev *input)
 {
        struct mmm_finger *oldest = 0;
-        bool pressed = false, released = false;
        int i;
+        for (i = 0; i < MAX_SLOTS; ++i) {
-        /*
-         * we need to iterate on all fingers to decide if we have a press
-         * or a release event in our touchscreen emulation.
-         */
-        for (i = 0; i < 10; ++i) {
                struct mmm_finger *f = &md->f[i];
                if (!f->valid) {
                        /* this finger is just placeholder data, ignore */
-                } else if (f->touch) {
+                        continue;
+                }
+                input_mt_slot(input, i);
+                if (f->touch) {
                        /* this finger is on the screen */
                        int wide = (f->w > f->h);
-                        input_event(input, EV_ABS, ABS_MT_TRACKING_ID, i);
+                        /* divided by two to match visual scale of touch */
+                        int major = max(f->w, f->h) >> 1;
+                        int minor = min(f->w, f->h) >> 1;
+                        if (!f->prev_touch)
+                                f->id = md->id++;
+                        input_event(input, EV_ABS, ABS_MT_TRACKING_ID, f->id);
                        input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x);
                        input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y);
                        input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
-                        input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR,
+                        input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
-                                                wide ? f->w : f->h);
+                        input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
-                        input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR,
+                        /* touchscreen emulation: pick the oldest contact */
-                                                wide ? f->h : f->w);
+                        if (!oldest || ((f->id - oldest->id) & (SHRT_MAX + 1)))
-                        input_mt_sync(input);
-                        /*
-                         * touchscreen emulation: maintain the age rank
-                         * of this finger, decide if we have a press
-                         */
-                        if (f->rank == 0) {
-                                f->rank = ++(md->num);
-                                if (f->rank == 1)
-                                        pressed = true;
-                        }
-                        if (f->rank == 1)
                                oldest = f;
                } else {
                        /* this finger took off the screen */
-                        /* touchscreen emulation: maintain age rank of others */
+                        input_event(input, EV_ABS, ABS_MT_TRACKING_ID, -1);
-                        int j;
-                        for (j = 0; j < 10; ++j) {
-                                struct mmm_finger *g = &md->f[j];
-                                if (g->rank > f->rank) {
-                                        g->rank--;
-                                        if (g->rank == 1)
-                                                oldest = g;
-                                }
-                        }
-                        f->rank = 0;
-                        --(md->num);
-                        if (md->num == 0)
-                                released = true;
                }
+                f->prev_touch = f->touch;
                f->valid = 0;
        }
        /* touchscreen emulation */
        if (oldest) {
-                if (pressed)
+                input_event(input, EV_KEY, BTN_TOUCH, 1);
-                        input_event(input, EV_KEY, BTN_TOUCH, 1);
                input_event(input, EV_ABS, ABS_X, oldest->x);
                input_event(input, EV_ABS, ABS_Y, oldest->y);
-        } else if (released) {
+        } else {
                input_event(input, EV_KEY, BTN_TOUCH, 0);
        }
+        input_sync(input);
 }
 /*
@@ -223,10 +231,12 @@ static int mmm_event(struct hid_device *hid, struct hid_field *field,
                                md->f[md->curid].h = value;
                        break;
                case HID_DG_CONTACTID:
+                        value = clamp_val(value, 0, MAX_SLOTS - 1);
                        if (md->valid) {
                                md->curid = value;
                                md->f[value].touch = md->touch;
                                md->f[value].valid = 1;
+                                md->nreal++;
                        }
                        break;
                case HID_GD_X:
@@ -238,7 +248,12 @@ static int mmm_event(struct hid_device *hid, struct hid_field *field,
                                md->f[md->curid].y = value;
                        break;
                case HID_DG_CONTACTCOUNT:
-                        mmm_filter_event(md, input);
+                        if (value)
+                                md->nexp = value;
+                        if (md->nreal >= md->nexp) {
+                                mmm_filter_event(md, input);
+                                md->nreal = 0;
+                        }
                        break;
                }
        }
@@ -255,6 +270,8 @@ static int mmm_probe(struct hid_device *hdev, const struct hid_device_id *id)
        int ret;
        struct mmm_data *md;
+        hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
        md = kzalloc(sizeof(struct mmm_data), GFP_KERNEL);
        if (!md) {
                dev_err(&hdev->dev, "cannot allocate 3M data\n");
diff --git a/drivers/hid/hid-a4tech.c b/drivers/hid/hid-a4tech.c
index 3a2b223c1da4..1666c1684e79 100644
--- a/drivers/hid/hid-a4tech.c
+++ b/drivers/hid/hid-a4tech.c
@@ -133,6 +133,8 @@ static const struct hid_device_id a4_devices[] = {
                .driver_data = A4_2WHEEL_MOUSE_HACK_7 },
        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D),
                .driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
+        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649),
+                .driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
        { }
 };
 MODULE_DEVICE_TABLE(hid, a4_devices);
diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index bba05d0a8980..eaeca564a8d3 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -246,17 +246,18 @@ static int apple_event(struct hid_device *hdev, struct hid_field *field,
 /*
 * MacBook JIS keyboard has wrong logical maximum
 */
-static void apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
        struct apple_sc *asc = hid_get_drvdata(hdev);
-        if ((asc->quirks & APPLE_RDESC_JIS) && rsize >= 60 &&
+        if ((asc->quirks & APPLE_RDESC_JIS) && *rsize >= 60 &&
                        rdesc[53] == 0x65 && rdesc[59] == 0x65) {
                dev_info(&hdev->dev, "fixing up MacBook JIS keyboard report "
                                "descriptor\n");
                rdesc[53] = rdesc[59] = 0xe7;
        }
+        return rdesc;
 }
 static void apple_setup_input(struct input_dev *input)
diff --git a/drivers/hid/hid-cherry.c b/drivers/hid/hid-cherry.c
index 24663a8717b1..e880086c2311 100644
--- a/drivers/hid/hid-cherry.c
+++ b/drivers/hid/hid-cherry.c
@@ -26,15 +26,16 @@
 * Cherry Cymotion keyboard have an invalid HID report descriptor,
 * that needs fixing before we can parse it.
 */
-static void ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
+        if (*rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
                dev_info(&hdev->dev, "fixing up Cherry Cymotion report "
                                "descriptor\n");
                rdesc[11] = rdesc[16] = 0xff;
                rdesc[12] = rdesc[17] = 0x03;
        }
+        return rdesc;
 }
 #define ch_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 3cb6632d4518..7832b6e2478b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -388,12 +388,6 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
        __u32 data;
        unsigned n;
-        /* Local delimiter could have value 0, which allows size to be 0 */
-        if (item->size == 0 && item->tag != HID_LOCAL_ITEM_TAG_DELIMITER) {
-                dbg_hid("item data expected for local item\n");
-                return -1;
-        }
        data = item_udata(item);
        switch (item->tag) {
@@ -651,7 +645,7 @@ int hid_parse_report(struct hid_device *device, __u8 *start,
        };
        if (device->driver->report_fixup)
-                device->driver->report_fixup(device, start, size);
+                start = device->driver->report_fixup(device, start, &size);
        device->rdesc = kmemdup(start, size, GFP_KERNEL);
        if (device->rdesc == NULL)
@@ -1241,6 +1235,7 @@ static const struct hid_device_id hid_blacklist[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
 #if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE)
        { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
 #endif
@@ -1248,6 +1243,7 @@ static const struct hid_device_id hid_blacklist[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
@@ -1327,6 +1323,7 @@ static const struct hid_device_id hid_blacklist[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
@@ -1336,6 +1333,7 @@ static const struct hid_device_id hid_blacklist[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
@@ -1371,12 +1369,15 @@ static const struct hid_device_id hid_blacklist[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
        { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
        { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
@@ -1388,8 +1389,16 @@ static const struct hid_device_id hid_blacklist[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
        { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
        { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
diff --git a/drivers/hid/hid-cypress.c b/drivers/hid/hid-cypress.c
index 998b6f443d7d..4cd0e2345991 100644
--- a/drivers/hid/hid-cypress.c
+++ b/drivers/hid/hid-cypress.c
@@ -31,16 +31,16 @@
 * Some USB barcode readers from cypress have usage min and usage max in
 * the wrong order
 */
-static void cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
        unsigned int i;
        if (!(quirks & CP_RDESC_SWAPPED_MIN_MAX))
-                return;
+                return rdesc;
-        for (i = 0; i < rsize - 4; i++)
+        for (i = 0; i < *rsize - 4; i++)
                if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
                        __u8 tmp;
@@ -50,6 +50,7 @@ static void cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                        rdesc[i + 3] = rdesc[i + 1];
                        rdesc[i + 1] = tmp;
                }
+        return rdesc;
 }
 static int cp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 61a3e572224a..75c5e23d09d2 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -570,6 +570,8 @@ void hid_debug_event(struct hid_device *hdev, char *buf)
                                buf[i];
                list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE;
        }
+        wake_up_interruptible(&hdev->debug_wait);
 }
 EXPORT_SYMBOL_GPL(hid_debug_event);
diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c
index 8ca7f65cf2f8..54b017ad258d 100644
--- a/drivers/hid/hid-egalax.c
+++ b/drivers/hid/hid-egalax.c
@@ -31,7 +31,7 @@ struct egalax_data {
        bool first;             /* is this the first finger in the frame? */
        bool valid;             /* valid finger data, or just placeholder? */
        bool activity;          /* at least one active finger previously? */
-        __u16 lastx, lasty;     /* latest valid (x, y) in the frame */
+        __u16 lastx, lasty, lastz;      /* latest valid (x, y, z) in the frame */
 };
 static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
@@ -79,6 +79,10 @@ static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                case HID_DG_TIPPRESSURE:
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_PRESSURE);
+                        /* touchscreen emulation */
+                        input_set_abs_params(hi->input, ABS_PRESSURE,
+                                                field->logical_minimum,
+                                                field->logical_maximum, 0, 0);
                        return 1;
                }
                return 0;
@@ -109,8 +113,8 @@ static void egalax_filter_event(struct egalax_data *td, struct input_dev *input)
        if (td->valid) {
                /* emit multitouch events */
                input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
-                input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
+                input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x >> 3);
-                input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
+                input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y >> 3);
                input_event(input, EV_ABS, ABS_MT_PRESSURE, td->z);
                input_mt_sync(input);
@@ -121,6 +125,7 @@ static void egalax_filter_event(struct egalax_data *td, struct input_dev *input)
                 */
                td->lastx = td->x;
                td->lasty = td->y;
+                td->lastz = td->z;
        }
        /*
@@ -129,8 +134,9 @@ static void egalax_filter_event(struct egalax_data *td, struct input_dev *input)
         * the oldest on the panel, the one we want for single touch
         */
        if (!td->first && td->activity) {
-                input_event(input, EV_ABS, ABS_X, td->lastx);
+                input_event(input, EV_ABS, ABS_X, td->lastx >> 3);
-                input_event(input, EV_ABS, ABS_Y, td->lasty);
+                input_event(input, EV_ABS, ABS_Y, td->lasty >> 3);
+                input_event(input, EV_ABS, ABS_PRESSURE, td->lastz);
        }
        if (!td->valid) {
diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index 7a40878f46b4..6e31f305397d 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -20,14 +20,15 @@
 #include "hid-ids.h"
-static void elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 48 && rdesc[46] == 0x05 && rdesc[47] == 0x0c) {
+        if (*rsize >= 48 && rdesc[46] == 0x05 && rdesc[47] == 0x0c) {
                dev_info(&hdev->dev, "Fixing up Elecom BM084 "
                                "report descriptor.\n");
                rdesc[47] = 0x00;
        }
+    return rdesc;
 }
 static const struct hid_device_id elecom_devices[] = {
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 855aa8e355f4..3ee999d33004 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -25,6 +25,7 @@
 #define USB_VENDOR_ID_A4TECH            0x09da
 #define USB_DEVICE_ID_A4TECH_WCP32PU    0x0006
 #define USB_DEVICE_ID_A4TECH_X5_005D    0x000a
+#define USB_DEVICE_ID_A4TECH_RP_649     0x001a
 #define USB_VENDOR_ID_AASHIMA           0x06d6
 #define USB_DEVICE_ID_AASHIMA_GAMEPAD   0x0025
@@ -63,6 +64,7 @@
 #define USB_VENDOR_ID_APPLE             0x05ac
 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
 #define USB_DEVICE_ID_APPLE_MAGICMOUSE  0x030d
+#define USB_DEVICE_ID_APPLE_MAGICTRACKPAD       0x030e
 #define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI       0x020e
 #define USB_DEVICE_ID_APPLE_FOUNTAIN_ISO        0x020f
 #define USB_DEVICE_ID_APPLE_GEYSER_ANSI 0x0214
@@ -142,6 +144,7 @@
 #define USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE       0x0051
 #define USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE        0x00ff
 #define USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK    0x00d3
+#define USB_DEVICE_ID_CH_AXIS_295       0x001c
 #define USB_VENDOR_ID_CHERRY            0x046a
 #define USB_DEVICE_ID_CHERRY_CYMOTION   0x0023
@@ -343,6 +346,7 @@
 #define USB_DEVICE_ID_LOGITECH_RECEIVER 0xc101
 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST  0xc110
 #define USB_DEVICE_ID_LOGITECH_HARMONY_LAST 0xc14f
+#define USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD   0xc20a
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD        0xc211
 #define USB_DEVICE_ID_LOGITECH_EXTREME_3D       0xc215
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2       0xc218
@@ -354,6 +358,7 @@
 #define USB_DEVICE_ID_LOGITECH_WINGMAN_FFG      0xc293
 #define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL       0xc295
 #define USB_DEVICE_ID_LOGITECH_G25_WHEEL        0xc299
+#define USB_DEVICE_ID_LOGITECH_WII_WHEEL        0xc29c
 #define USB_DEVICE_ID_LOGITECH_ELITE_KBD        0xc30a
 #define USB_DEVICE_ID_S510_RECEIVER     0xc50c
 #define USB_DEVICE_ID_S510_RECEIVER_2   0xc517
@@ -466,6 +471,8 @@
 #define USB_VENDOR_ID_ROCCAT            0x1e7d
 #define USB_DEVICE_ID_ROCCAT_KONE       0x2ced
+#define USB_DEVICE_ID_ROCCAT_PYRA_WIRED 0x2c24
+#define USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS      0x2cf6
 #define USB_VENDOR_ID_SAITEK            0x06a3
 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD  0xff17
@@ -485,6 +492,12 @@
 #define USB_VENDOR_ID_STANTUM           0x1f87
 #define USB_DEVICE_ID_MTP               0x0002
+#define USB_VENDOR_ID_STANTUM_STM               0x0483
+#define USB_DEVICE_ID_MTP_STM           0x3261
+#define USB_VENDOR_ID_STANTUM_SITRONIX          0x1403
+#define USB_DEVICE_ID_MTP_SITRONIX              0x5001
 #define USB_VENDOR_ID_SUN               0x0430
 #define USB_DEVICE_ID_RARITAN_KVM_DONGLE        0xcdab
@@ -514,8 +527,10 @@
 #define USB_VENDOR_ID_UCLOGIC           0x5543
 #define USB_DEVICE_ID_UCLOGIC_TABLET_PF1209     0x0042
-#define USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U    0x0003
 #define USB_DEVICE_ID_UCLOGIC_TABLET_KNA5       0x6001
+#define USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U    0x0003
+#define USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U    0x0004
+#define USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U    0x0005
 #define USB_VENDOR_ID_VERNIER           0x08f7
 #define USB_DEVICE_ID_VERNIER_LABPRO    0x0001
@@ -527,6 +542,12 @@
 #define USB_VENDOR_ID_WACOM             0x056a
 #define USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH  0x81
+#define USB_VENDOR_ID_WALTOP                            0x172f
+#define USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH       0x0032
+#define USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH      0x0034
+#define USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH     0x0501
+#define USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH     0x0500
 #define USB_VENDOR_ID_WISEGROUP         0x0925
 #define USB_DEVICE_ID_SMARTJOY_PLUS     0x0005
 #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 6c03dcc5760a..834ef47b76d6 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -149,6 +149,83 @@ static int hidinput_setkeycode(struct input_dev *dev,
 }
+/**
+ * hidinput_calc_abs_res - calculate an absolute axis resolution
+ * @field: the HID report field to calculate resolution for
+ * @code: axis code
+ *
+ * The formula is:
+ *                         (logical_maximum - logical_minimum)
+ * resolution = ----------------------------------------------------------
+ *              (physical_maximum - physical_minimum) * 10 ^ unit_exponent
+ *
+ * as seen in the HID specification v1.11 6.2.2.7 Global Items.
+ *
+ * Only exponent 1 length units are processed. Centimeters are converted to
+ * inches. Degrees are converted to radians.
+ */
+static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
+{
+        __s32 unit_exponent = field->unit_exponent;
+        __s32 logical_extents = field->logical_maximum -
+                                        field->logical_minimum;
+        __s32 physical_extents = field->physical_maximum -
+                                        field->physical_minimum;
+        __s32 prev;
+        /* Check if the extents are sane */
+        if (logical_extents <= 0 || physical_extents <= 0)
+                return 0;
+        /*
+         * Verify and convert units.
+         * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
+         */
+        if (code == ABS_X || code == ABS_Y || code == ABS_Z) {
+                if (field->unit == 0x11) {              /* If centimeters */
+                        /* Convert to inches */
+                        prev = logical_extents;
+                        logical_extents *= 254;
+                        if (logical_extents < prev)
+                                return 0;
+                        unit_exponent += 2;
+                } else if (field->unit != 0x13) {       /* If not inches */
+                        return 0;
+                }
+        } else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) {
+                if (field->unit == 0x14) {              /* If degrees */
+                        /* Convert to radians */
+                        prev = logical_extents;
+                        logical_extents *= 573;
+                        if (logical_extents < prev)
+                                return 0;
+                        unit_exponent += 1;
+                } else if (field->unit != 0x12) {       /* If not radians */
+                        return 0;
+                }
+        } else {
+                return 0;
+        }
+        /* Apply negative unit exponent */
+        for (; unit_exponent < 0; unit_exponent++) {
+                prev = logical_extents;
+                logical_extents *= 10;
+                if (logical_extents < prev)
+                        return 0;
+        }
+        /* Apply positive unit exponent */
+        for (; unit_exponent > 0; unit_exponent--) {
+                prev = physical_extents;
+                physical_extents *= 10;
+                if (physical_extents < prev)
+                        return 0;
+        }
+        /* Calculate resolution */
+        return logical_extents / physical_extents;
+}
 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
                                     struct hid_usage *usage)
 {
@@ -336,6 +413,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                        map_key_clear(BTN_STYLUS);
                        break;
+                case 0x46: /* TabletPick */
+                        map_key_clear(BTN_STYLUS2);
+                        break;
                default:  goto unknown;
                }
                break;
@@ -537,6 +618,9 @@ mapped:
                        input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
                else    input_set_abs_params(input, usage->code, a, b, 0, 0);
+                input_abs_set_res(input, usage->code,
+                                  hidinput_calc_abs_res(field, usage->code));
                /* use a larger default input buffer for MT devices */
                if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
                        input_set_events_per_packet(input, 60);
@@ -659,6 +743,9 @@ void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
 {
        struct hid_input *hidinput;
+        if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
+                return;
        list_for_each_entry(hidinput, &hid->inputs, list)
                input_sync(hidinput->input);
 }
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
index f8871712b7b5..817247ee006c 100644
--- a/drivers/hid/hid-kye.c
+++ b/drivers/hid/hid-kye.c
@@ -23,10 +23,10 @@
 *   - report size 8 count 1 must be size 1 count 8 for button bitfield
 *   - change the button usage range to 4-7 for the extra buttons
 */
-static void kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 74 &&
+        if (*rsize >= 74 &&
                rdesc[61] == 0x05 && rdesc[62] == 0x08 &&
                rdesc[63] == 0x19 && rdesc[64] == 0x08 &&
                rdesc[65] == 0x29 && rdesc[66] == 0x0f &&
@@ -40,6 +40,7 @@ static void kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                rdesc[72] = 0x01;
                rdesc[74] = 0x08;
        }
+        return rdesc;
 }
 static const struct hid_device_id kye_devices[] = {
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index f6433d8050a9..b629fba5a057 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -7,6 +7,7 @@
 *  Copyright (c) 2006-2007 Jiri Kosina
 *  Copyright (c) 2007 Paul Walmsley
 *  Copyright (c) 2008 Jiri Slaby
+ *  Copyright (c) 2010 Hendrik Iben
 */
 /*
@@ -19,6 +20,9 @@
 #include <linux/device.h>
 #include <linux/hid.h>
 #include <linux/module.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
 #include "hid-ids.h"
 #include "hid-lg.h"
@@ -35,31 +39,43 @@
 #define LG_FF2                  0x400
 #define LG_RDESC_REL_ABS        0x800
 #define LG_FF3                  0x1000
+#define LG_FF4                  0x2000
 /*
 * Certain Logitech keyboards send in report #3 keys which are far
 * above the logical maximum described in descriptor. This extends
 * the original value of 0x28c of logical maximum to 0x104d
 */
-static void lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
-        if ((quirks & LG_RDESC) && rsize >= 90 && rdesc[83] == 0x26 &&
+        if ((quirks & LG_RDESC) && *rsize >= 90 && rdesc[83] == 0x26 &&
                        rdesc[84] == 0x8c && rdesc[85] == 0x02) {
                dev_info(&hdev->dev, "fixing up Logitech keyboard report "
                                "descriptor\n");
                rdesc[84] = rdesc[89] = 0x4d;
                rdesc[85] = rdesc[90] = 0x10;
        }
-        if ((quirks & LG_RDESC_REL_ABS) && rsize >= 50 &&
+        if ((quirks & LG_RDESC_REL_ABS) && *rsize >= 50 &&
                        rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
                        rdesc[49] == 0x81 && rdesc[50] == 0x06) {
                dev_info(&hdev->dev, "fixing up rel/abs in Logitech "
                                "report descriptor\n");
                rdesc[33] = rdesc[50] = 0x02;
        }
+        if ((quirks & LG_FF4) && *rsize >= 101 &&
+                        rdesc[41] == 0x95 && rdesc[42] == 0x0B &&
+                        rdesc[47] == 0x05 && rdesc[48] == 0x09) {
+                dev_info(&hdev->dev, "fixing up Logitech Speed Force Wireless "
+                        "button descriptor\n");
+                rdesc[41] = 0x05;
+                rdesc[42] = 0x09;
+                rdesc[47] = 0x95;
+                rdesc[48] = 0x0B;
+        }
+        return rdesc;
 }
 #define lg_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
@@ -285,12 +301,33 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
                goto err_free;
        }
+        if (quirks & LG_FF4) {
+                unsigned char buf[] = { 0x00, 0xAF,  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+                ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+                if (ret >= 0) {
+                        /* insert a little delay of 10 jiffies ~ 40ms */
+                        wait_queue_head_t wait;
+                        init_waitqueue_head (&wait);
+                        wait_event_interruptible_timeout(wait, 0, 10);
+                        /* Select random Address */
+                        buf[1] = 0xB2;
+                        get_random_bytes(&buf[2], 2);
+                        ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+                }
+        }
        if (quirks & LG_FF)
                lgff_init(hdev);
        if (quirks & LG_FF2)
                lg2ff_init(hdev);
        if (quirks & LG_FF3)
                lg3ff_init(hdev);
+        if (quirks & LG_FF4)
+                lg4ff_init(hdev);
        return 0;
 err_free:
@@ -325,6 +362,8 @@ static const struct hid_device_id lg_devices[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL),
                .driver_data = LG_NOGET | LG_FF },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD),
+                .driver_data = LG_FF2 },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD),
                .driver_data = LG_FF },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2),
@@ -339,6 +378,8 @@ static const struct hid_device_id lg_devices[] = {
                .driver_data = LG_FF },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL),
                .driver_data = LG_FF },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL),
+                .driver_data = LG_FF4 },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ),
                .driver_data = LG_FF },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
diff --git a/drivers/hid/hid-lg.h b/drivers/hid/hid-lg.h
index ce2ac8672624..b0100ba2ae0b 100644
--- a/drivers/hid/hid-lg.h
+++ b/drivers/hid/hid-lg.h
@@ -19,4 +19,10 @@ int lg3ff_init(struct hid_device *hdev);
 static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
 #endif
+#ifdef CONFIG_LOGIWII_FF
+int lg4ff_init(struct hid_device *hdev);
+#else
+static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
+#endif
 #endif
diff --git a/drivers/hid/hid-lg2ff.c b/drivers/hid/hid-lg2ff.c
index d888f1e6794f..4258253c36b3 100644
--- a/drivers/hid/hid-lg2ff.c
+++ b/drivers/hid/hid-lg2ff.c
@@ -1,5 +1,5 @@
 /*
- *  Force feedback support for Logitech Rumblepad 2
+ *  Force feedback support for Logitech RumblePad and Rumblepad 2
 *
 *  Copyright (c) 2008 Anssi Hannula <anssi.hannula@gmail.com>
 */
@@ -110,7 +110,7 @@ int lg2ff_init(struct hid_device *hid)
        usbhid_submit_report(hid, report, USB_DIR_OUT);
-        dev_info(&hid->dev, "Force feedback for Logitech Rumblepad 2 by "
+        dev_info(&hid->dev, "Force feedback for Logitech RumblePad/Rumblepad 2 by "
               "Anssi Hannula <anssi.hannula@gmail.com>\n");
        return 0;
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
new file mode 100644
index 000000000000..7eef5a2ce948
--- /dev/null
+++ b/drivers/hid/hid-lg4ff.c
@@ -0,0 +1,136 @@
+/*
+ *  Force feedback support for Logitech Speed Force Wireless
+ *
+ *  http://wiibrew.org/wiki/Logitech_USB_steering_wheel
+ *
+ *  Copyright (c) 2010 Simon Wood <simon@mungewell.org>
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/input.h>
+#include <linux/usb.h>
+#include <linux/hid.h>
+#include "usbhid/usbhid.h"
+#include "hid-lg.h"
+struct lg4ff_device {
+        struct hid_report *report;
+};
+static const signed short ff4_wheel_ac[] = {
+        FF_CONSTANT,
+        FF_AUTOCENTER,
+        -1
+};
+static int hid_lg4ff_play(struct input_dev *dev, void *data,
+                         struct ff_effect *effect)
+{
+        struct hid_device *hid = input_get_drvdata(dev);
+        struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+        struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+        int x;
+#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
+        switch (effect->type) {
+        case FF_CONSTANT:
+                x = effect->u.ramp.start_level + 0x80;  /* 0x80 is no force */
+                CLAMP(x);
+                report->field[0]->value[0] = 0x11;      /* Slot 1 */
+                report->field[0]->value[1] = 0x10;
+                report->field[0]->value[2] = x;
+                report->field[0]->value[3] = 0x00;
+                report->field[0]->value[4] = 0x00;
+                report->field[0]->value[5] = 0x08;
+                report->field[0]->value[6] = 0x00;
+                dbg_hid("Autocenter, x=0x%02X\n", x);
+                usbhid_submit_report(hid, report, USB_DIR_OUT);
+                break;
+        }
+        return 0;
+}
+static void hid_lg4ff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+        struct hid_device *hid = input_get_drvdata(dev);
+        struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+        struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+        __s32 *value = report->field[0]->value;
+        *value++ = 0xfe;
+        *value++ = 0x0d;
+        *value++ = 0x07;
+        *value++ = 0x07;
+        *value++ = (magnitude >> 8) & 0xff;
+        *value++ = 0x00;
+        *value = 0x00;
+        usbhid_submit_report(hid, report, USB_DIR_OUT);
+}
+int lg4ff_init(struct hid_device *hid)
+{
+        struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+        struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+        struct input_dev *dev = hidinput->input;
+        struct hid_report *report;
+        struct hid_field *field;
+        const signed short *ff_bits = ff4_wheel_ac;
+        int error;
+        int i;
+        /* Find the report to use */
+        if (list_empty(report_list)) {
+                err_hid("No output report found");
+                return -1;
+        }
+        /* Check that the report looks ok */
+        report = list_entry(report_list->next, struct hid_report, list);
+        if (!report) {
+                err_hid("NULL output report");
+                return -1;
+        }
+        field = report->field[0];
+        if (!field) {
+                err_hid("NULL field");
+                return -1;
+        }
+        for (i = 0; ff_bits[i] >= 0; i++)
+                set_bit(ff_bits[i], dev->ffbit);
+        error = input_ff_create_memless(dev, NULL, hid_lg4ff_play);
+        if (error)
+                return error;
+        if (test_bit(FF_AUTOCENTER, dev->ffbit))
+                dev->ff->set_autocenter = hid_lg4ff_set_autocenter;
+        dev_info(&hid->dev, "Force feedback for Logitech Speed Force Wireless by "
+                        "Simon Wood <simon@mungewell.org>\n");
+        return 0;
+}
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 319b0e57ee41..e6dc15171664 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -2,6 +2,7 @@
 *   Apple "Magic" Wireless Mouse driver
 *
 *   Copyright (c) 2010 Michael Poole <mdpoole@troilus.org>
+ *   Copyright (c) 2010 Chase Douglas <chase.douglas@canonical.com>
 */
 /*
@@ -53,7 +54,9 @@ static bool report_undeciphered;
 module_param(report_undeciphered, bool, 0644);
 MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event");
-#define TOUCH_REPORT_ID   0x29
+#define TRACKPAD_REPORT_ID 0x28
+#define MOUSE_REPORT_ID    0x29
+#define DOUBLE_REPORT_ID   0xf7
 /* These definitions are not precise, but they're close enough.  (Bits
 * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
 * to be some kind of bit mask -- 0x20 may be a near-field reading,
@@ -67,15 +70,19 @@ MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state fie
 #define SCROLL_ACCEL_DEFAULT 7
+/* Single touch emulation should only begin when no touches are currently down.
+ * This is true when single_touch_id is equal to NO_TOUCHES. If multiple touches
+ * are down and the touch providing for single touch emulation is lifted,
+ * single_touch_id is equal to SINGLE_TOUCH_UP. While single touch emulation is
+ * occuring, single_touch_id corresponds with the tracking id of the touch used.
+ */
+#define NO_TOUCHES -1
+#define SINGLE_TOUCH_UP -2
 /**
 * struct magicmouse_sc - Tracks Magic Mouse-specific data.
 * @input: Input device through which we report events.
 * @quirks: Currently unused.
- * @last_timestamp: Timestamp from most recent (18-bit) touch report
- *     (units of milliseconds over short windows, but seems to
- *     increase faster when there are no touches).
- * @delta_time: 18-bit difference between the two most recent touch
- *     reports from the mouse.
 * @ntouches: Number of touches in most recent touch report.
 * @scroll_accel: Number of consecutive scroll motions.
 * @scroll_jiffies: Time of last scroll motion.
@@ -86,8 +93,6 @@ struct magicmouse_sc {
        struct input_dev *input;
        unsigned long quirks;
-        int last_timestamp;
-        int delta_time;
        int ntouches;
        int scroll_accel;
        unsigned long scroll_jiffies;
@@ -98,9 +103,9 @@ struct magicmouse_sc {
                short scroll_x;
                short scroll_y;
                u8 size;
-                u8 down;
        } touches[16];
        int tracking_ids[16];
+        int single_touch_id;
 };
 static int magicmouse_firm_touch(struct magicmouse_sc *msc)
@@ -166,18 +171,35 @@ static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state)
 static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata)
 {
        struct input_dev *input = msc->input;
-        __s32 x_y = tdata[0] << 8 | tdata[1] << 16 | tdata[2] << 24;
+        int id, x, y, size, orientation, touch_major, touch_minor, state, down;
-        int misc = tdata[5] | tdata[6] << 8;
-        int id = (misc >> 6) & 15;
+        if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
-        int x = x_y << 12 >> 20;
+                id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf;
-        int y = -(x_y >> 20);
+                x = (tdata[1] << 28 | tdata[0] << 20) >> 20;
-        int down = (tdata[7] & TOUCH_STATE_MASK) != TOUCH_STATE_NONE;
+                y = -((tdata[2] << 24 | tdata[1] << 16) >> 20);
+                size = tdata[5] & 0x3f;
+                orientation = (tdata[6] >> 2) - 32;
+                touch_major = tdata[3];
+                touch_minor = tdata[4];
+                state = tdata[7] & TOUCH_STATE_MASK;
+                down = state != TOUCH_STATE_NONE;
+        } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+                id = (tdata[7] << 2 | tdata[6] >> 6) & 0xf;
+                x = (tdata[1] << 27 | tdata[0] << 19) >> 19;
+                y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19);
+                size = tdata[6] & 0x3f;
+                orientation = (tdata[7] >> 2) - 32;
+                touch_major = tdata[4];
+                touch_minor = tdata[5];
+                state = tdata[8] & TOUCH_STATE_MASK;
+                down = state != TOUCH_STATE_NONE;
+        }
        /* Store tracking ID and other fields. */
        msc->tracking_ids[raw_id] = id;
        msc->touches[id].x = x;
        msc->touches[id].y = y;
-        msc->touches[id].size = misc & 63;
+        msc->touches[id].size = size;
        /* If requested, emulate a scroll wheel by detecting small
         * vertical touch motions.
@@ -188,7 +210,7 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
                int step_y = msc->touches[id].scroll_y - y;
                /* Calculate and apply the scroll motion. */
-                switch (tdata[7] & TOUCH_STATE_MASK) {
+                switch (state) {
                case TOUCH_STATE_START:
                        msc->touches[id].scroll_x = x;
                        msc->touches[id].scroll_y = y;
@@ -222,21 +244,28 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
                }
        }
+        if (down) {
+                msc->ntouches++;
+                if (msc->single_touch_id == NO_TOUCHES)
+                        msc->single_touch_id = id;
+        } else if (msc->single_touch_id == id)
+                msc->single_touch_id = SINGLE_TOUCH_UP;
        /* Generate the input events for this touch. */
        if (report_touches && down) {
-                int orientation = (misc >> 10) - 32;
-                msc->touches[id].down = 1;
                input_report_abs(input, ABS_MT_TRACKING_ID, id);
-                input_report_abs(input, ABS_MT_TOUCH_MAJOR, tdata[3]);
+                input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2);
-                input_report_abs(input, ABS_MT_TOUCH_MINOR, tdata[4]);
+                input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2);
                input_report_abs(input, ABS_MT_ORIENTATION, orientation);
                input_report_abs(input, ABS_MT_POSITION_X, x);
                input_report_abs(input, ABS_MT_POSITION_Y, y);
-                if (report_undeciphered)
+                if (report_undeciphered) {
-                        input_event(input, EV_MSC, MSC_RAW, tdata[7]);
+                        if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
+                                input_event(input, EV_MSC, MSC_RAW, tdata[7]);
+                        else /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+                                input_event(input, EV_MSC, MSC_RAW, tdata[8]);
+                }
                input_mt_sync(input);
        }
@@ -247,39 +276,43 @@ static int magicmouse_raw_event(struct hid_device *hdev,
 {
        struct magicmouse_sc *msc = hid_get_drvdata(hdev);
        struct input_dev *input = msc->input;
-        int x, y, ts, ii, clicks, last_up;
+        int x = 0, y = 0, ii, clicks = 0, npoints;
        switch (data[0]) {
-        case 0x10:
+        case TRACKPAD_REPORT_ID:
-                if (size != 6)
+                /* Expect four bytes of prefix, and N*9 bytes of touch data. */
+                if (size < 4 || ((size - 4) % 9) != 0)
                        return 0;
-                x = (__s16)(data[2] | data[3] << 8);
+                npoints = (size - 4) / 9;
-                y = (__s16)(data[4] | data[5] << 8);
+                msc->ntouches = 0;
+                for (ii = 0; ii < npoints; ii++)
+                        magicmouse_emit_touch(msc, ii, data + ii * 9 + 4);
+                /* We don't need an MT sync here because trackpad emits a
+                 * BTN_TOUCH event in a new frame when all touches are released.
+                 */
+                if (msc->ntouches == 0)
+                        msc->single_touch_id = NO_TOUCHES;
                clicks = data[1];
+                /* The following bits provide a device specific timestamp. They
+                 * are unused here.
+                 *
+                 * ts = data[1] >> 6 | data[2] << 2 | data[3] << 10;
+                 */
                break;
-        case TOUCH_REPORT_ID:
+        case MOUSE_REPORT_ID:
                /* Expect six bytes of prefix, and N*8 bytes of touch data. */
                if (size < 6 || ((size - 6) % 8) != 0)
                        return 0;
-                ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
+                npoints = (size - 6) / 8;
-                msc->delta_time = (ts - msc->last_timestamp) & 0x3ffff;
+                msc->ntouches = 0;
-                msc->last_timestamp = ts;
+                for (ii = 0; ii < npoints; ii++)
-                msc->ntouches = (size - 6) / 8;
-                for (ii = 0; ii < msc->ntouches; ii++)
                        magicmouse_emit_touch(msc, ii, data + ii * 8 + 6);
-                if (report_touches) {
+                if (report_touches && msc->ntouches == 0)
-                        last_up = 1;
+                        input_mt_sync(input);
-                        for (ii = 0; ii < ARRAY_SIZE(msc->touches); ii++) {
-                                if (msc->touches[ii].down) {
-                                        last_up = 0;
-                                        msc->touches[ii].down = 0;
-                                }
-                        }
-                        if (last_up) {
-                                input_mt_sync(input);
-                        }
-                }
                /* When emulating three-button mode, it is important
                 * to have the current touch information before
@@ -288,68 +321,72 @@ static int magicmouse_raw_event(struct hid_device *hdev,
                x = (int)(((data[3] & 0x0c) << 28) | (data[1] << 22)) >> 22;
                y = (int)(((data[3] & 0x30) << 26) | (data[2] << 22)) >> 22;
                clicks = data[3];
+                /* The following bits provide a device specific timestamp. They
+                 * are unused here.
+                 *
+                 * ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
+                 */
+                break;
+        case DOUBLE_REPORT_ID:
+                /* Sometimes the trackpad sends two touch reports in one
+                 * packet.
+                 */
+                magicmouse_raw_event(hdev, report, data + 2, data[1]);
+                magicmouse_raw_event(hdev, report, data + 2 + data[1],
+                        size - 2 - data[1]);
                break;
-        case 0x20: /* Theoretically battery status (0-100), but I have
-                    * never seen it -- maybe it is only upon request.
-                    */
-        case 0x60: /* Unknown, maybe laser on/off. */
-        case 0x61: /* Laser reflection status change.
-                    * data[1]: 0 = spotted, 1 = lost
-                    */
        default:
                return 0;
        }
-        magicmouse_emit_buttons(msc, clicks & 3);
+        if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
-        input_report_rel(input, REL_X, x);
+                magicmouse_emit_buttons(msc, clicks & 3);
-        input_report_rel(input, REL_Y, y);
+                input_report_rel(input, REL_X, x);
+                input_report_rel(input, REL_Y, y);
+        } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+                input_report_key(input, BTN_MOUSE, clicks & 1);
+                input_report_key(input, BTN_TOUCH, msc->ntouches > 0);
+                input_report_key(input, BTN_TOOL_FINGER, msc->ntouches == 1);
+                input_report_key(input, BTN_TOOL_DOUBLETAP, msc->ntouches == 2);
+                input_report_key(input, BTN_TOOL_TRIPLETAP, msc->ntouches == 3);
+                input_report_key(input, BTN_TOOL_QUADTAP, msc->ntouches == 4);
+                if (msc->single_touch_id >= 0) {
+                        input_report_abs(input, ABS_X,
+                                msc->touches[msc->single_touch_id].x);
+                        input_report_abs(input, ABS_Y,
+                                msc->touches[msc->single_touch_id].y);
+                }
+        }
        input_sync(input);
        return 1;
 }
-static int magicmouse_input_open(struct input_dev *dev)
-{
-        struct hid_device *hid = input_get_drvdata(dev);
-        return hid->ll_driver->open(hid);
-}
-static void magicmouse_input_close(struct input_dev *dev)
-{
-        struct hid_device *hid = input_get_drvdata(dev);
-        hid->ll_driver->close(hid);
-}
 static void magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev)
 {
-        input_set_drvdata(input, hdev);
-        input->event = hdev->ll_driver->hidinput_input_event;
-        input->open = magicmouse_input_open;
-        input->close = magicmouse_input_close;
-        input->name = hdev->name;
-        input->phys = hdev->phys;
-        input->uniq = hdev->uniq;
-        input->id.bustype = hdev->bus;
-        input->id.vendor = hdev->vendor;
-        input->id.product = hdev->product;
-        input->id.version = hdev->version;
-        input->dev.parent = hdev->dev.parent;
        __set_bit(EV_KEY, input->evbit);
-        __set_bit(BTN_LEFT, input->keybit);
-        __set_bit(BTN_RIGHT, input->keybit);
+        if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
-        if (emulate_3button)
+                __set_bit(BTN_LEFT, input->keybit);
-                __set_bit(BTN_MIDDLE, input->keybit);
+                __set_bit(BTN_RIGHT, input->keybit);
-        __set_bit(BTN_TOOL_FINGER, input->keybit);
+                if (emulate_3button)
+                        __set_bit(BTN_MIDDLE, input->keybit);
-        __set_bit(EV_REL, input->evbit);
-        __set_bit(REL_X, input->relbit);
+                __set_bit(EV_REL, input->evbit);
-        __set_bit(REL_Y, input->relbit);
+                __set_bit(REL_X, input->relbit);
-        if (emulate_scroll_wheel) {
+                __set_bit(REL_Y, input->relbit);
-                __set_bit(REL_WHEEL, input->relbit);
+                if (emulate_scroll_wheel) {
-                __set_bit(REL_HWHEEL, input->relbit);
+                        __set_bit(REL_WHEEL, input->relbit);
+                        __set_bit(REL_HWHEEL, input->relbit);
+                }
+        } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+                __set_bit(BTN_MOUSE, input->keybit);
+                __set_bit(BTN_TOOL_FINGER, input->keybit);
+                __set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
+                __set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
+                __set_bit(BTN_TOOL_QUADTAP, input->keybit);
+                __set_bit(BTN_TOUCH, input->keybit);
        }
        if (report_touches) {
@@ -359,16 +396,26 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
                input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0);
                input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0);
                input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0);
-                input_set_abs_params(input, ABS_MT_POSITION_X, -1100, 1358,
-                                4, 0);
                /* Note: Touch Y position from the device is inverted relative
                 * to how pointer motion is reported (and relative to how USB
                 * HID recommends the coordinates work).  This driver keeps
                 * the origin at the same position, and just uses the additive
                 * inverse of the reported Y.
                 */
-                input_set_abs_params(input, ABS_MT_POSITION_Y, -1589, 2047,
+                if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
-                                4, 0);
+                        input_set_abs_params(input, ABS_MT_POSITION_X, -1100,
+                                1358, 4, 0);
+                        input_set_abs_params(input, ABS_MT_POSITION_Y, -1589,
+                                2047, 4, 0);
+                } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+                        input_set_abs_params(input, ABS_X, -2909, 3167, 4, 0);
+                        input_set_abs_params(input, ABS_Y, -2456, 2565, 4, 0);
+                        input_set_abs_params(input, ABS_MT_POSITION_X, -2909,
+                                3167, 4, 0);
+                        input_set_abs_params(input, ABS_MT_POSITION_Y, -2456,
+                                2565, 4, 0);
+                }
        }
        if (report_undeciphered) {
@@ -377,12 +424,22 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
        }
 }
+static int magicmouse_input_mapping(struct hid_device *hdev,
+                struct hid_input *hi, struct hid_field *field,
+                struct hid_usage *usage, unsigned long **bit, int *max)
+{
+        struct magicmouse_sc *msc = hid_get_drvdata(hdev);
+        if (!msc->input)
+                msc->input = hi->input;
+        return 0;
+}
 static int magicmouse_probe(struct hid_device *hdev,
        const struct hid_device_id *id)
 {
-        __u8 feature_1[] = { 0xd7, 0x01 };
+        __u8 feature[] = { 0xd7, 0x01 };
-        __u8 feature_2[] = { 0xf8, 0x01, 0x32 };
-        struct input_dev *input;
        struct magicmouse_sc *msc;
        struct hid_report *report;
        int ret;
@@ -398,6 +455,8 @@ static int magicmouse_probe(struct hid_device *hdev,
        msc->quirks = id->driver_data;
        hid_set_drvdata(hdev, msc);
+        msc->single_touch_id = NO_TOUCHES;
        ret = hid_parse(hdev);
        if (ret) {
                dev_err(&hdev->dev, "magicmouse hid parse failed\n");
@@ -410,10 +469,22 @@ static int magicmouse_probe(struct hid_device *hdev,
                goto err_free;
        }
-        /* we are handling the input ourselves */
+        /* We do this after hid-input is done parsing reports so that
-        hidinput_disconnect(hdev);
+         * hid-input uses the most natural button and axis IDs.
+         */
+        if (msc->input)
+                magicmouse_setup_input(msc->input, hdev);
+        if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
+                report = hid_register_report(hdev, HID_INPUT_REPORT,
+                        MOUSE_REPORT_ID);
+        else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+                report = hid_register_report(hdev, HID_INPUT_REPORT,
+                        TRACKPAD_REPORT_ID);
+                report = hid_register_report(hdev, HID_INPUT_REPORT,
+                        DOUBLE_REPORT_ID);
+        }
-        report = hid_register_report(hdev, HID_INPUT_REPORT, TOUCH_REPORT_ID);
        if (!report) {
                dev_err(&hdev->dev, "unable to register touch report\n");
                ret = -ENOMEM;
@@ -421,39 +492,15 @@ static int magicmouse_probe(struct hid_device *hdev,
        }
        report->size = 6;
-        ret = hdev->hid_output_raw_report(hdev, feature_1, sizeof(feature_1),
+        ret = hdev->hid_output_raw_report(hdev, feature, sizeof(feature),
                        HID_FEATURE_REPORT);
-        if (ret != sizeof(feature_1)) {
+        if (ret != sizeof(feature)) {
-                dev_err(&hdev->dev, "unable to request touch data (1:%d)\n",
+                dev_err(&hdev->dev, "unable to request touch data (%d)\n",
-                                ret);
-                goto err_stop_hw;
-        }
-        ret = hdev->hid_output_raw_report(hdev, feature_2,
-                        sizeof(feature_2), HID_FEATURE_REPORT);
-        if (ret != sizeof(feature_2)) {
-                dev_err(&hdev->dev, "unable to request touch data (2:%d)\n",
                                ret);
                goto err_stop_hw;
        }
-        input = input_allocate_device();
-        if (!input) {
-                dev_err(&hdev->dev, "can't alloc input device\n");
-                ret = -ENOMEM;
-                goto err_stop_hw;
-        }
-        magicmouse_setup_input(input, hdev);
-        ret = input_register_device(input);
-        if (ret) {
-                dev_err(&hdev->dev, "input device registration failed\n");
-                goto err_input;
-        }
-        msc->input = input;
        return 0;
-err_input:
-        input_free_device(input);
 err_stop_hw:
        hid_hw_stop(hdev);
 err_free:
@@ -466,13 +513,14 @@ static void magicmouse_remove(struct hid_device *hdev)
        struct magicmouse_sc *msc = hid_get_drvdata(hdev);
        hid_hw_stop(hdev);
-        input_unregister_device(msc->input);
        kfree(msc);
 }
 static const struct hid_device_id magic_mice[] = {
-        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE),
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
-                .driver_data = 0 },
+                USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 },
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+                USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 },
        { }
 };
 MODULE_DEVICE_TABLE(hid, magic_mice);
@@ -483,6 +531,7 @@ static struct hid_driver magicmouse_driver = {
        .probe = magicmouse_probe,
        .remove = magicmouse_remove,
        .raw_event = magicmouse_raw_event,
+        .input_mapping = magicmouse_input_mapping,
 };
 static int __init magicmouse_init(void)
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index 359cc447c6c6..dc618c33d0a2 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -33,18 +33,19 @@
 * Microsoft Wireless Desktop Receiver (Model 1028) has
 * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
 */
-static void ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
-        if ((quirks & MS_RDESC) && rsize == 571 && rdesc[557] == 0x19 &&
+        if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
                        rdesc[559] == 0x29) {
                dev_info(&hdev->dev, "fixing up Microsoft Wireless Receiver "
                                "Model 1028 report descriptor\n");
                rdesc[557] = 0x35;
                rdesc[559] = 0x45;
        }
+        return rdesc;
 }
 #define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
diff --git a/drivers/hid/hid-monterey.c b/drivers/hid/hid-monterey.c
index 2cd05aa244b9..c95c31e2d869 100644
--- a/drivers/hid/hid-monterey.c
+++ b/drivers/hid/hid-monterey.c
@@ -22,14 +22,15 @@
 #include "hid-ids.h"
-static void mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 30 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
+        if (*rsize >= 30 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
                dev_info(&hdev->dev, "fixing up button/consumer in HID report "
                                "descriptor\n");
                rdesc[30] = 0x0c;
        }
+        return rdesc;
 }
 #define mr_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index fb69b8c4953f..69169efa1e16 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -90,6 +90,55 @@ struct ntrig_data {
 };
+/*
+ * This function converts the 4 byte raw firmware code into
+ * a string containing 5 comma separated numbers.
+ */
+static int ntrig_version_string(unsigned char *raw, char *buf)
+{
+        __u8 a =  (raw[1] & 0x0e) >> 1;
+        __u8 b =  (raw[0] & 0x3c) >> 2;
+        __u8 c = ((raw[0] & 0x03) << 3) | ((raw[3] & 0xe0) >> 5);
+        __u8 d = ((raw[3] & 0x07) << 3) | ((raw[2] & 0xe0) >> 5);
+        __u8 e =   raw[2] & 0x07;
+        /*
+         * As yet unmapped bits:
+         * 0b11000000 0b11110001 0b00011000 0b00011000
+         */
+        return sprintf(buf, "%u.%u.%u.%u.%u", a, b, c, d, e);
+}
+static void ntrig_report_version(struct hid_device *hdev)
+{
+        int ret;
+        char buf[20];
+        struct usb_device *usb_dev = hid_to_usb_dev(hdev);
+        unsigned char *data = kmalloc(8, GFP_KERNEL);
+        if (!data)
+                goto err_free;
+        ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                              USB_REQ_CLEAR_FEATURE,
+                              USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+                              USB_DIR_IN,
+                              0x30c, 1, data, 8,
+                              USB_CTRL_SET_TIMEOUT);
+        if (ret == 8) {
+                ret = ntrig_version_string(&data[2], buf);
+                dev_info(&hdev->dev,
+                         "Firmware version: %s (%02x%02x %02x%02x)\n",
+                         buf, data[2], data[3], data[4], data[5]);
+        }
+err_free:
+        kfree(data);
+}
 static ssize_t show_phys_width(struct device *dev,
                               struct device_attribute *attr,
                               char *buf)
@@ -377,8 +426,8 @@ static struct attribute_group ntrig_attribute_group = {
 */
 static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
-                struct hid_field *field, struct hid_usage *usage,
+                               struct hid_field *field, struct hid_usage *usage,
-                unsigned long **bit, int *max)
+                               unsigned long **bit, int *max)
 {
        struct ntrig_data *nd = hid_get_drvdata(hdev);
@@ -448,13 +497,13 @@ static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                /* width/height mapped on TouchMajor/TouchMinor/Orientation */
                case HID_DG_WIDTH:
                        hid_map_usage(hi, usage, bit, max,
-                                        EV_ABS, ABS_MT_TOUCH_MAJOR);
+                                      EV_ABS, ABS_MT_TOUCH_MAJOR);
                        return 1;
                case HID_DG_HEIGHT:
                        hid_map_usage(hi, usage, bit, max,
-                                        EV_ABS, ABS_MT_TOUCH_MINOR);
+                                      EV_ABS, ABS_MT_TOUCH_MINOR);
                        input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
-                                        0, 1, 0, 0);
+                                             0, 1, 0, 0);
                        return 1;
                }
                return 0;
@@ -468,8 +517,8 @@ static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 }
 static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi,
-                struct hid_field *field, struct hid_usage *usage,
+                              struct hid_field *field, struct hid_usage *usage,
-                unsigned long **bit, int *max)
+                              unsigned long **bit, int *max)
 {
        /* No special mappings needed for the pen and single touch */
        if (field->physical)
@@ -489,7 +538,7 @@ static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 * and call input_mt_sync after each point if necessary
 */
 static int ntrig_event (struct hid_device *hid, struct hid_field *field,
-                                        struct hid_usage *usage, __s32 value)
+                        struct hid_usage *usage, __s32 value)
 {
        struct input_dev *input = field->hidinput->input;
        struct ntrig_data *nd = hid_get_drvdata(hid);
@@ -848,6 +897,8 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
        if (report)
                usbhid_submit_report(hdev, report, USB_DIR_OUT);
+        ntrig_report_version(hdev);
        ret = sysfs_create_group(&hdev->dev.kobj,
                        &ntrig_attribute_group);
@@ -860,7 +911,7 @@ err_free:
 static void ntrig_remove(struct hid_device *hdev)
 {
        sysfs_remove_group(&hdev->dev.kobj,
-                        &ntrig_attribute_group);
+                           &ntrig_attribute_group);
        hid_hw_stop(hdev);
        kfree(hid_get_drvdata(hdev));
 }
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
index aa9a960f73a4..2e79716dca31 100644
--- a/drivers/hid/hid-ortek.c
+++ b/drivers/hid/hid-ortek.c
@@ -19,14 +19,15 @@
 #include "hid-ids.h"
-static void ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
+        if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
                dev_info(&hdev->dev, "Fixing up Ortek WKB-2000 "
                                "report descriptor.\n");
                rdesc[55] = 0x92;
        }
+        return rdesc;
 }
 static const struct hid_device_id ortek_devices[] = {
diff --git a/drivers/hid/hid-petalynx.c b/drivers/hid/hid-petalynx.c
index 500fbd0652dc..308d6ae48a3e 100644
--- a/drivers/hid/hid-petalynx.c
+++ b/drivers/hid/hid-petalynx.c
@@ -23,10 +23,10 @@
 #include "hid-ids.h"
 /* Petalynx Maxter Remote has maximum for consumer page set too low */
-static void pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
+        if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
                        rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
                        rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
                dev_info(&hdev->dev, "fixing up Petalynx Maxter Remote report "
@@ -34,6 +34,7 @@ static void pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                rdesc[60] = 0xfa;
                rdesc[40] = 0xfa;
        }
+        return rdesc;
 }
 #define pl_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 845f428b8090..48eab84f53b5 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -740,10 +740,10 @@ int pcmidi_snd_terminate(struct pcmidi_snd *pm)
 /*
 * PC-MIDI report descriptor for report id is wrong.
 */
-static void pk_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *pk_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize == 178 &&
+        if (*rsize == 178 &&
              rdesc[111] == 0x06 && rdesc[112] == 0x00 &&
              rdesc[113] == 0xff) {
                dev_info(&hdev->dev, "fixing up pc-midi keyboard report "
@@ -751,6 +751,7 @@ static void pk_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                rdesc[144] = 0x18; /* report 4: was 0x10 report count */
        }
+        return rdesc;
 }
 static int pk_input_mapping(struct hid_device *hdev, struct hid_input *hi,
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
new file mode 100644
index 000000000000..9bf23047892a
--- /dev/null
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -0,0 +1,968 @@
+/*
+ * Roccat Pyra driver for Linux
+ *
+ * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+/*
+ * Roccat Pyra is a mobile gamer mouse which comes in wired and wireless
+ * variant. Wireless variant is not tested.
+ * Userland tools can be found at http://sourceforge.net/projects/roccat
+ */
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/usb.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include "hid-ids.h"
+#include "hid-roccat.h"
+#include "hid-roccat-pyra.h"
+static void profile_activated(struct pyra_device *pyra,
+                unsigned int new_profile)
+{
+        pyra->actual_profile = new_profile;
+        pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi;
+}
+static int pyra_send_control(struct usb_device *usb_dev, int value,
+                enum pyra_control_requests request)
+{
+        int len;
+        struct pyra_control control;
+        if ((request == PYRA_CONTROL_REQUEST_PROFILE_SETTINGS ||
+                        request == PYRA_CONTROL_REQUEST_PROFILE_BUTTONS) &&
+                        (value < 0 || value > 4))
+                return -EINVAL;
+        control.command = PYRA_COMMAND_CONTROL;
+        control.value = value;
+        control.request = request;
+        len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
+                        USB_REQ_SET_CONFIGURATION,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+                        PYRA_USB_COMMAND_CONTROL, 0, (char *)&control,
+                        sizeof(struct pyra_control),
+                        USB_CTRL_SET_TIMEOUT);
+        if (len != sizeof(struct pyra_control))
+                return len;
+        return 0;
+}
+static int pyra_receive_control_status(struct usb_device *usb_dev)
+{
+        int len;
+        struct pyra_control control;
+        do {
+                msleep(10);
+                len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                                USB_REQ_CLEAR_FEATURE,
+                                USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+                                USB_DIR_IN,
+                                PYRA_USB_COMMAND_CONTROL, 0, (char *)&control,
+                                sizeof(struct pyra_control),
+                                USB_CTRL_SET_TIMEOUT);
+                /* requested too early, try again */
+        } while (len == -EPROTO);
+        if (len == sizeof(struct pyra_control) &&
+                        control.command == PYRA_COMMAND_CONTROL &&
+                        control.request == PYRA_CONTROL_REQUEST_STATUS &&
+                        control.value == 1)
+                        return 0;
+        else {
+                dev_err(&usb_dev->dev, "receive control status: "
+                                "unknown response 0x%x 0x%x\n",
+                                control.request, control.value);
+                return -EINVAL;
+        }
+}
+static int pyra_get_profile_settings(struct usb_device *usb_dev,
+                struct pyra_profile_settings *buf, int number)
+{
+        int retval;
+        retval = pyra_send_control(usb_dev, number,
+                        PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
+        if (retval)
+                return retval;
+        retval = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                        USB_REQ_CLEAR_FEATURE,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+                        PYRA_USB_COMMAND_PROFILE_SETTINGS, 0, (char *)buf,
+                        sizeof(struct pyra_profile_settings),
+                        USB_CTRL_SET_TIMEOUT);
+        if (retval != sizeof(struct pyra_profile_settings))
+                return retval;
+        return 0;
+}
+static int pyra_get_profile_buttons(struct usb_device *usb_dev,
+                struct pyra_profile_buttons *buf, int number)
+{
+        int retval;
+        retval = pyra_send_control(usb_dev, number,
+                        PYRA_CONTROL_REQUEST_PROFILE_BUTTONS);
+        if (retval)
+                return retval;
+        retval = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                        USB_REQ_CLEAR_FEATURE,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+                        PYRA_USB_COMMAND_PROFILE_BUTTONS, 0, (char *)buf,
+                        sizeof(struct pyra_profile_buttons),
+                        USB_CTRL_SET_TIMEOUT);
+        if (retval != sizeof(struct pyra_profile_buttons))
+                return retval;
+        return 0;
+}
+static int pyra_get_settings(struct usb_device *usb_dev,
+                struct pyra_settings *buf)
+{
+        int len;
+        len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                        USB_REQ_CLEAR_FEATURE,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+                        PYRA_USB_COMMAND_SETTINGS, 0, buf,
+                        sizeof(struct pyra_settings), USB_CTRL_SET_TIMEOUT);
+        if (len != sizeof(struct pyra_settings))
+                return -EIO;
+        return 0;
+}
+static int pyra_get_info(struct usb_device *usb_dev, struct pyra_info *buf)
+{
+        int len;
+        len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                        USB_REQ_CLEAR_FEATURE,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+                        PYRA_USB_COMMAND_INFO, 0, buf,
+                        sizeof(struct pyra_info), USB_CTRL_SET_TIMEOUT);
+        if (len != sizeof(struct pyra_info))
+                return -EIO;
+        return 0;
+}
+static int pyra_set_profile_settings(struct usb_device *usb_dev,
+                struct pyra_profile_settings const *settings)
+{
+        int len;
+        len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
+                        USB_REQ_SET_CONFIGURATION,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+                        PYRA_USB_COMMAND_PROFILE_SETTINGS, 0, (char *)settings,
+                        sizeof(struct pyra_profile_settings),
+                        USB_CTRL_SET_TIMEOUT);
+        if (len != sizeof(struct pyra_profile_settings))
+                return -EIO;
+        if (pyra_receive_control_status(usb_dev))
+                return -EIO;
+        return 0;
+}
+static int pyra_set_profile_buttons(struct usb_device *usb_dev,
+                struct pyra_profile_buttons const *buttons)
+{
+        int len;
+        len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
+                        USB_REQ_SET_CONFIGURATION,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+                        PYRA_USB_COMMAND_PROFILE_BUTTONS, 0, (char *)buttons,
+                        sizeof(struct pyra_profile_buttons),
+                        USB_CTRL_SET_TIMEOUT);
+        if (len != sizeof(struct pyra_profile_buttons))
+                return -EIO;
+        if (pyra_receive_control_status(usb_dev))
+                return -EIO;
+        return 0;
+}
+static int pyra_set_settings(struct usb_device *usb_dev,
+                struct pyra_settings const *settings)
+{
+        int len;
+        len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
+                        USB_REQ_SET_CONFIGURATION,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+                        PYRA_USB_COMMAND_SETTINGS, 0, (char *)settings,
+                        sizeof(struct pyra_settings), USB_CTRL_SET_TIMEOUT);
+        if (len != sizeof(struct pyra_settings))
+                return -EIO;
+        if (pyra_receive_control_status(usb_dev))
+                return -EIO;
+        return 0;
+}
+static ssize_t pyra_sysfs_read_profilex_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count, int number)
+{
+        struct device *dev = container_of(kobj, struct device, kobj);
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        if (off >= sizeof(struct pyra_profile_settings))
+                return 0;
+        if (off + count > sizeof(struct pyra_profile_settings))
+                count = sizeof(struct pyra_profile_settings) - off;
+        mutex_lock(&pyra->pyra_lock);
+        memcpy(buf, ((char const *)&pyra->profile_settings[number]) + off,
+                        count);
+        mutex_unlock(&pyra->pyra_lock);
+        return count;
+}
+static ssize_t pyra_sysfs_read_profile1_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_settings(fp, kobj,
+                        attr, buf, off, count, 0);
+}
+static ssize_t pyra_sysfs_read_profile2_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_settings(fp, kobj,
+                        attr, buf, off, count, 1);
+}
+static ssize_t pyra_sysfs_read_profile3_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_settings(fp, kobj,
+                        attr, buf, off, count, 2);
+}
+static ssize_t pyra_sysfs_read_profile4_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_settings(fp, kobj,
+                        attr, buf, off, count, 3);
+}
+static ssize_t pyra_sysfs_read_profile5_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_settings(fp, kobj,
+                        attr, buf, off, count, 4);
+}
+static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count, int number)
+{
+        struct device *dev = container_of(kobj, struct device, kobj);
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        if (off >= sizeof(struct pyra_profile_buttons))
+                return 0;
+        if (off + count > sizeof(struct pyra_profile_buttons))
+                count = sizeof(struct pyra_profile_buttons) - off;
+        mutex_lock(&pyra->pyra_lock);
+        memcpy(buf, ((char const *)&pyra->profile_buttons[number]) + off,
+                        count);
+        mutex_unlock(&pyra->pyra_lock);
+        return count;
+}
+static ssize_t pyra_sysfs_read_profile1_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_buttons(fp, kobj,
+                        attr, buf, off, count, 0);
+}
+static ssize_t pyra_sysfs_read_profile2_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_buttons(fp, kobj,
+                        attr, buf, off, count, 1);
+}
+static ssize_t pyra_sysfs_read_profile3_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_buttons(fp, kobj,
+                        attr, buf, off, count, 2);
+}
+static ssize_t pyra_sysfs_read_profile4_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_buttons(fp, kobj,
+                        attr, buf, off, count, 3);
+}
+static ssize_t pyra_sysfs_read_profile5_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return pyra_sysfs_read_profilex_buttons(fp, kobj,
+                        attr, buf, off, count, 4);
+}
+static ssize_t pyra_sysfs_write_profile_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        struct device *dev = container_of(kobj, struct device, kobj);
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+        int retval = 0;
+        int difference;
+        int profile_number;
+        struct pyra_profile_settings *profile_settings;
+        if (off != 0 || count != sizeof(struct pyra_profile_settings))
+                return -EINVAL;
+        profile_number = ((struct pyra_profile_settings const *)buf)->number;
+        profile_settings = &pyra->profile_settings[profile_number];
+        mutex_lock(&pyra->pyra_lock);
+        difference = memcmp(buf, profile_settings,
+                        sizeof(struct pyra_profile_settings));
+        if (difference) {
+                retval = pyra_set_profile_settings(usb_dev,
+                                (struct pyra_profile_settings const *)buf);
+                if (!retval)
+                        memcpy(profile_settings, buf,
+                                        sizeof(struct pyra_profile_settings));
+        }
+        mutex_unlock(&pyra->pyra_lock);
+        if (retval)
+                return retval;
+        return sizeof(struct pyra_profile_settings);
+}
+static ssize_t pyra_sysfs_write_profile_buttons(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        struct device *dev = container_of(kobj, struct device, kobj);
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+        int retval = 0;
+        int difference;
+        int profile_number;
+        struct pyra_profile_buttons *profile_buttons;
+        if (off != 0 || count != sizeof(struct pyra_profile_buttons))
+                return -EINVAL;
+        profile_number = ((struct pyra_profile_buttons const *)buf)->number;
+        profile_buttons = &pyra->profile_buttons[profile_number];
+        mutex_lock(&pyra->pyra_lock);
+        difference = memcmp(buf, profile_buttons,
+                        sizeof(struct pyra_profile_buttons));
+        if (difference) {
+                retval = pyra_set_profile_buttons(usb_dev,
+                                (struct pyra_profile_buttons const *)buf);
+                if (!retval)
+                        memcpy(profile_buttons, buf,
+                                        sizeof(struct pyra_profile_buttons));
+        }
+        mutex_unlock(&pyra->pyra_lock);
+        if (retval)
+                return retval;
+        return sizeof(struct pyra_profile_buttons);
+}
+static ssize_t pyra_sysfs_read_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        struct device *dev = container_of(kobj, struct device, kobj);
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        if (off >= sizeof(struct pyra_settings))
+                return 0;
+        if (off + count > sizeof(struct pyra_settings))
+                count = sizeof(struct pyra_settings) - off;
+        mutex_lock(&pyra->pyra_lock);
+        memcpy(buf, ((char const *)&pyra->settings) + off, count);
+        mutex_unlock(&pyra->pyra_lock);
+        return count;
+}
+static ssize_t pyra_sysfs_write_settings(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        struct device *dev = container_of(kobj, struct device, kobj);
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+        int retval = 0;
+        int difference;
+        if (off != 0 || count != sizeof(struct pyra_settings))
+                return -EINVAL;
+        mutex_lock(&pyra->pyra_lock);
+        difference = memcmp(buf, &pyra->settings, sizeof(struct pyra_settings));
+        if (difference) {
+                retval = pyra_set_settings(usb_dev,
+                                (struct pyra_settings const *)buf);
+                if (!retval)
+                        memcpy(&pyra->settings, buf,
+                                        sizeof(struct pyra_settings));
+        }
+        mutex_unlock(&pyra->pyra_lock);
+        if (retval)
+                return retval;
+        profile_activated(pyra, pyra->settings.startup_profile);
+        return sizeof(struct pyra_settings);
+}
+static ssize_t pyra_sysfs_show_actual_cpi(struct device *dev,
+                struct device_attribute *attr, char *buf)
+{
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_cpi);
+}
+static ssize_t pyra_sysfs_show_actual_profile(struct device *dev,
+                struct device_attribute *attr, char *buf)
+{
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_profile);
+}
+static ssize_t pyra_sysfs_show_firmware_version(struct device *dev,
+                struct device_attribute *attr, char *buf)
+{
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        return snprintf(buf, PAGE_SIZE, "%d\n", pyra->firmware_version);
+}
+static ssize_t pyra_sysfs_show_startup_profile(struct device *dev,
+                struct device_attribute *attr, char *buf)
+{
+        struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+        return snprintf(buf, PAGE_SIZE, "%d\n", pyra->settings.startup_profile);
+}
+static DEVICE_ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL);
+static DEVICE_ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
+static DEVICE_ATTR(firmware_version, 0440,
+                pyra_sysfs_show_firmware_version, NULL);
+static DEVICE_ATTR(startup_profile, 0440,
+                pyra_sysfs_show_startup_profile, NULL);
+static struct attribute *pyra_attributes[] = {
+                &dev_attr_actual_cpi.attr,
+                &dev_attr_actual_profile.attr,
+                &dev_attr_firmware_version.attr,
+                &dev_attr_startup_profile.attr,
+                NULL
+};
+static struct attribute_group pyra_attribute_group = {
+                .attrs = pyra_attributes
+};
+static struct bin_attribute pyra_profile_settings_attr = {
+                .attr = { .name = "profile_settings", .mode = 0220 },
+                .size = sizeof(struct pyra_profile_settings),
+                .write = pyra_sysfs_write_profile_settings
+};
+static struct bin_attribute pyra_profile1_settings_attr = {
+                .attr = { .name = "profile1_settings", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_settings),
+                .read = pyra_sysfs_read_profile1_settings
+};
+static struct bin_attribute pyra_profile2_settings_attr = {
+                .attr = { .name = "profile2_settings", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_settings),
+                .read = pyra_sysfs_read_profile2_settings
+};
+static struct bin_attribute pyra_profile3_settings_attr = {
+                .attr = { .name = "profile3_settings", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_settings),
+                .read = pyra_sysfs_read_profile3_settings
+};
+static struct bin_attribute pyra_profile4_settings_attr = {
+                .attr = { .name = "profile4_settings", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_settings),
+                .read = pyra_sysfs_read_profile4_settings
+};
+static struct bin_attribute pyra_profile5_settings_attr = {
+                .attr = { .name = "profile5_settings", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_settings),
+                .read = pyra_sysfs_read_profile5_settings
+};
+static struct bin_attribute pyra_profile_buttons_attr = {
+                .attr = { .name = "profile_buttons", .mode = 0220 },
+                .size = sizeof(struct pyra_profile_buttons),
+                .write = pyra_sysfs_write_profile_buttons
+};
+static struct bin_attribute pyra_profile1_buttons_attr = {
+                .attr = { .name = "profile1_buttons", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_buttons),
+                .read = pyra_sysfs_read_profile1_buttons
+};
+static struct bin_attribute pyra_profile2_buttons_attr = {
+                .attr = { .name = "profile2_buttons", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_buttons),
+                .read = pyra_sysfs_read_profile2_buttons
+};
+static struct bin_attribute pyra_profile3_buttons_attr = {
+                .attr = { .name = "profile3_buttons", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_buttons),
+                .read = pyra_sysfs_read_profile3_buttons
+};
+static struct bin_attribute pyra_profile4_buttons_attr = {
+                .attr = { .name = "profile4_buttons", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_buttons),
+                .read = pyra_sysfs_read_profile4_buttons
+};
+static struct bin_attribute pyra_profile5_buttons_attr = {
+                .attr = { .name = "profile5_buttons", .mode = 0440 },
+                .size = sizeof(struct pyra_profile_buttons),
+                .read = pyra_sysfs_read_profile5_buttons
+};
+static struct bin_attribute pyra_settings_attr = {
+                .attr = { .name = "settings", .mode = 0660 },
+                .size = sizeof(struct pyra_settings),
+                .read = pyra_sysfs_read_settings,
+                .write = pyra_sysfs_write_settings
+};
+static int pyra_create_sysfs_attributes(struct usb_interface *intf)
+{
+        int retval;
+        retval = sysfs_create_group(&intf->dev.kobj, &pyra_attribute_group);
+        if (retval)
+                goto exit_1;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile_settings_attr);
+        if (retval)
+                goto exit_2;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile1_settings_attr);
+        if (retval)
+                goto exit_3;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile2_settings_attr);
+        if (retval)
+                goto exit_4;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile3_settings_attr);
+        if (retval)
+                goto exit_5;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile4_settings_attr);
+        if (retval)
+                goto exit_6;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile5_settings_attr);
+        if (retval)
+                goto exit_7;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile_buttons_attr);
+        if (retval)
+                goto exit_8;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile1_buttons_attr);
+        if (retval)
+                goto exit_9;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile2_buttons_attr);
+        if (retval)
+                goto exit_10;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile3_buttons_attr);
+        if (retval)
+                goto exit_11;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile4_buttons_attr);
+        if (retval)
+                goto exit_12;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_profile5_buttons_attr);
+        if (retval)
+                goto exit_13;
+        retval = sysfs_create_bin_file(&intf->dev.kobj,
+                        &pyra_settings_attr);
+        if (retval)
+                goto exit_14;
+        return 0;
+exit_14:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_buttons_attr);
+exit_13:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_buttons_attr);
+exit_12:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_buttons_attr);
+exit_11:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_buttons_attr);
+exit_10:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_buttons_attr);
+exit_9:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_buttons_attr);
+exit_8:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_settings_attr);
+exit_7:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_settings_attr);
+exit_6:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_settings_attr);
+exit_5:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_settings_attr);
+exit_4:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_settings_attr);
+exit_3:
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_settings_attr);
+exit_2:
+        sysfs_remove_group(&intf->dev.kobj, &pyra_attribute_group);
+exit_1:
+        return retval;
+}
+static void pyra_remove_sysfs_attributes(struct usb_interface *intf)
+{
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_settings_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_buttons_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_buttons_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_buttons_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_buttons_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_buttons_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_buttons_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_settings_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_settings_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_settings_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_settings_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_settings_attr);
+        sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_settings_attr);
+        sysfs_remove_group(&intf->dev.kobj, &pyra_attribute_group);
+}
+static int pyra_init_pyra_device_struct(struct usb_device *usb_dev,
+                struct pyra_device *pyra)
+{
+        struct pyra_info *info;
+        int retval, i;
+        mutex_init(&pyra->pyra_lock);
+        info = kmalloc(sizeof(struct pyra_info), GFP_KERNEL);
+        if (!info)
+                return -ENOMEM;
+        retval = pyra_get_info(usb_dev, info);
+        if (retval) {
+                kfree(info);
+                return retval;
+        }
+        pyra->firmware_version = info->firmware_version;
+        kfree(info);
+        retval = pyra_get_settings(usb_dev, &pyra->settings);
+        if (retval)
+                return retval;
+        for (i = 0; i < 5; ++i) {
+                retval = pyra_get_profile_settings(usb_dev,
+                                &pyra->profile_settings[i], i);
+                if (retval)
+                        return retval;
+                retval = pyra_get_profile_buttons(usb_dev,
+                                &pyra->profile_buttons[i], i);
+                if (retval)
+                        return retval;
+        }
+        profile_activated(pyra, pyra->settings.startup_profile);
+        return 0;
+}
+static int pyra_init_specials(struct hid_device *hdev)
+{
+        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+        struct usb_device *usb_dev = interface_to_usbdev(intf);
+        struct pyra_device *pyra;
+        int retval;
+        if (intf->cur_altsetting->desc.bInterfaceProtocol
+                        == USB_INTERFACE_PROTOCOL_MOUSE) {
+                pyra = kzalloc(sizeof(*pyra), GFP_KERNEL);
+                if (!pyra) {
+                        dev_err(&hdev->dev, "can't alloc device descriptor\n");
+                        return -ENOMEM;
+                }
+                hid_set_drvdata(hdev, pyra);
+                retval = pyra_init_pyra_device_struct(usb_dev, pyra);
+                if (retval) {
+                        dev_err(&hdev->dev,
+                                        "couldn't init struct pyra_device\n");
+                        goto exit_free;
+                }
+                retval = roccat_connect(hdev);
+                if (retval < 0) {
+                        dev_err(&hdev->dev, "couldn't init char dev\n");
+                } else {
+                        pyra->chrdev_minor = retval;
+                        pyra->roccat_claimed = 1;
+                }
+                retval = pyra_create_sysfs_attributes(intf);
+                if (retval) {
+                        dev_err(&hdev->dev, "cannot create sysfs files\n");
+                        goto exit_free;
+                }
+        } else {
+                hid_set_drvdata(hdev, NULL);
+        }
+        return 0;
+exit_free:
+        kfree(pyra);
+        return retval;
+}
+static void pyra_remove_specials(struct hid_device *hdev)
+{
+        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+        struct pyra_device *pyra;
+        if (intf->cur_altsetting->desc.bInterfaceProtocol
+                        == USB_INTERFACE_PROTOCOL_MOUSE) {
+                pyra_remove_sysfs_attributes(intf);
+                pyra = hid_get_drvdata(hdev);
+                if (pyra->roccat_claimed)
+                        roccat_disconnect(pyra->chrdev_minor);
+                kfree(hid_get_drvdata(hdev));
+        }
+}
+static int pyra_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+        int retval;
+        retval = hid_parse(hdev);
+        if (retval) {
+                dev_err(&hdev->dev, "parse failed\n");
+                goto exit;
+        }
+        retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+        if (retval) {
+                dev_err(&hdev->dev, "hw start failed\n");
+                goto exit;
+        }
+        retval = pyra_init_specials(hdev);
+        if (retval) {
+                dev_err(&hdev->dev, "couldn't install mouse\n");
+                goto exit_stop;
+        }
+        return 0;
+exit_stop:
+        hid_hw_stop(hdev);
+exit:
+        return retval;
+}
+static void pyra_remove(struct hid_device *hdev)
+{
+        pyra_remove_specials(hdev);
+        hid_hw_stop(hdev);
+}
+static void pyra_keep_values_up_to_date(struct pyra_device *pyra,
+                u8 const *data)
+{
+        struct pyra_mouse_event_button const *button_event;
+        switch (data[0]) {
+        case PYRA_MOUSE_REPORT_NUMBER_BUTTON:
+                button_event = (struct pyra_mouse_event_button const *)data;
+                switch (button_event->type) {
+                case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2:
+                        profile_activated(pyra, button_event->data1 - 1);
+                        break;
+                case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI:
+                        pyra->actual_cpi = button_event->data1;
+                        break;
+                }
+                break;
+        }
+}
+static void pyra_report_to_chrdev(struct pyra_device const *pyra,
+                u8 const *data)
+{
+        struct pyra_roccat_report roccat_report;
+        struct pyra_mouse_event_button const *button_event;
+        if (data[0] != PYRA_MOUSE_REPORT_NUMBER_BUTTON)
+                return;
+        button_event = (struct pyra_mouse_event_button const *)data;
+        switch (button_event->type) {
+        case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2:
+        case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI:
+                roccat_report.type = button_event->type;
+                roccat_report.value = button_event->data1;
+                roccat_report.key = 0;
+                roccat_report_event(pyra->chrdev_minor,
+                                (uint8_t const *)&roccat_report,
+                                sizeof(struct pyra_roccat_report));
+                break;
+        case PYRA_MOUSE_EVENT_BUTTON_TYPE_MACRO:
+        case PYRA_MOUSE_EVENT_BUTTON_TYPE_SHORTCUT:
+        case PYRA_MOUSE_EVENT_BUTTON_TYPE_QUICKLAUNCH:
+                if (button_event->data2 == PYRA_MOUSE_EVENT_BUTTON_PRESS) {
+                        roccat_report.type = button_event->type;
+                        roccat_report.key = button_event->data1;
+                        /*
+                         * pyra reports profile numbers with range 1-5.
+                         * Keeping this behaviour.
+                         */
+                        roccat_report.value = pyra->actual_profile + 1;
+                        roccat_report_event(pyra->chrdev_minor,
+                                        (uint8_t const *)&roccat_report,
+                                        sizeof(struct pyra_roccat_report));
+                }
+                break;
+        }
+}
+static int pyra_raw_event(struct hid_device *hdev, struct hid_report *report,
+                u8 *data, int size)
+{
+        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+        struct pyra_device *pyra = hid_get_drvdata(hdev);
+        if (intf->cur_altsetting->desc.bInterfaceProtocol
+                        != USB_INTERFACE_PROTOCOL_MOUSE)
+                return 0;
+        pyra_keep_values_up_to_date(pyra, data);
+        if (pyra->roccat_claimed)
+                pyra_report_to_chrdev(pyra, data);
+        return 0;
+}
+static const struct hid_device_id pyra_devices[] = {
+        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT,
+                        USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
+        /* TODO add USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS after testing */
+        { }
+};
+MODULE_DEVICE_TABLE(hid, pyra_devices);
+static struct hid_driver pyra_driver = {
+                .name = "pyra",
+                .id_table = pyra_devices,
+                .probe = pyra_probe,
+                .remove = pyra_remove,
+                .raw_event = pyra_raw_event
+};
+static int __init pyra_init(void)
+{
+        return hid_register_driver(&pyra_driver);
+}
+static void __exit pyra_exit(void)
+{
+        hid_unregister_driver(&pyra_driver);
+}
+module_init(pyra_init);
+module_exit(pyra_exit);
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Pyra driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-roccat-pyra.h b/drivers/hid/hid-roccat-pyra.h
new file mode 100644
index 000000000000..22f80a8f26f9
--- /dev/null
+++ b/drivers/hid/hid-roccat-pyra.h
@@ -0,0 +1,186 @@
+#ifndef __HID_ROCCAT_PYRA_H
+#define __HID_ROCCAT_PYRA_H
+/*
+ * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+#include <linux/types.h>
+#pragma pack(push)
+#pragma pack(1)
+struct pyra_b {
+        uint8_t command; /* PYRA_COMMAND_B */
+        uint8_t size; /* always 3 */
+        uint8_t unknown; /* 1 */
+};
+struct pyra_control {
+        uint8_t command; /* PYRA_COMMAND_CONTROL */
+        /*
+         * value is profile number for request_settings and request_buttons
+         * 1 if status ok for request_status
+         */
+        uint8_t value; /* Range 0-4 */
+        uint8_t request;
+};
+enum pyra_control_requests {
+        PYRA_CONTROL_REQUEST_STATUS = 0x00,
+        PYRA_CONTROL_REQUEST_PROFILE_SETTINGS = 0x10,
+        PYRA_CONTROL_REQUEST_PROFILE_BUTTONS = 0x20
+};
+struct pyra_settings {
+        uint8_t command; /* PYRA_COMMAND_SETTINGS */
+        uint8_t size; /* always 3 */
+        uint8_t startup_profile; /* Range 0-4! */
+};
+struct pyra_profile_settings {
+        uint8_t command; /* PYRA_COMMAND_PROFILE_SETTINGS */
+        uint8_t size; /* always 0xd */
+        uint8_t number; /* Range 0-4 */
+        uint8_t xysync;
+        uint8_t x_sensitivity; /* 0x1-0xa */
+        uint8_t y_sensitivity;
+        uint8_t x_cpi; /* unused */
+        uint8_t y_cpi; /* this value is for x and y */
+        uint8_t lightswitch; /* 0 = off, 1 = on */
+        uint8_t light_effect;
+        uint8_t handedness;
+        uint16_t checksum; /* byte sum */
+};
+struct pyra_profile_buttons {
+        uint8_t command; /* PYRA_COMMAND_PROFILE_BUTTONS */
+        uint8_t size; /* always 0x13 */
+        uint8_t number; /* Range 0-4 */
+        uint8_t buttons[14];
+        uint16_t checksum; /* byte sum */
+};
+struct pyra_info {
+        uint8_t command; /* PYRA_COMMAND_INFO */
+        uint8_t size; /* always 6 */
+        uint8_t firmware_version;
+        uint8_t unknown1; /* always 0 */
+        uint8_t unknown2; /* always 1 */
+        uint8_t unknown3; /* always 0 */
+};
+enum pyra_commands {
+        PYRA_COMMAND_CONTROL = 0x4,
+        PYRA_COMMAND_SETTINGS = 0x5,
+        PYRA_COMMAND_PROFILE_SETTINGS = 0x6,
+        PYRA_COMMAND_PROFILE_BUTTONS = 0x7,
+        PYRA_COMMAND_INFO = 0x9,
+        PYRA_COMMAND_B = 0xb
+};
+enum pyra_usb_commands {
+        PYRA_USB_COMMAND_CONTROL = 0x304,
+        PYRA_USB_COMMAND_SETTINGS = 0x305,
+        PYRA_USB_COMMAND_PROFILE_SETTINGS = 0x306,
+        PYRA_USB_COMMAND_PROFILE_BUTTONS = 0x307,
+        PYRA_USB_COMMAND_INFO = 0x309,
+        PYRA_USB_COMMAND_B = 0x30b /* writes 3 bytes */
+};
+enum pyra_mouse_report_numbers {
+        PYRA_MOUSE_REPORT_NUMBER_HID = 1,
+        PYRA_MOUSE_REPORT_NUMBER_AUDIO = 2,
+        PYRA_MOUSE_REPORT_NUMBER_BUTTON = 3,
+};
+struct pyra_mouse_event_button {
+        uint8_t report_number; /* always 3 */
+        uint8_t unknown; /* always 0 */
+        uint8_t type;
+        uint8_t data1;
+        uint8_t data2;
+};
+struct pyra_mouse_event_audio {
+        uint8_t report_number; /* always 2 */
+        uint8_t type;
+        uint8_t unused; /* always 0 */
+};
+/* hid audio controls */
+enum pyra_mouse_event_audio_types {
+        PYRA_MOUSE_EVENT_AUDIO_TYPE_MUTE = 0xe2,
+        PYRA_MOUSE_EVENT_AUDIO_TYPE_VOLUME_UP = 0xe9,
+        PYRA_MOUSE_EVENT_AUDIO_TYPE_VOLUME_DOWN = 0xea,
+};
+enum pyra_mouse_event_button_types {
+        /*
+         * Mouse sends tilt events on report_number 1 and 3
+         * Tilt events are sent repeatedly with 0.94s between first and second
+         * event and 0.22s on subsequent
+         */
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_TILT = 0x10,
+        /*
+         * These are sent sequentially
+         * data1 contains new profile number in range 1-5
+         */
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_1 = 0x20,
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2 = 0x30,
+        /*
+         * data1 = button_number (rmp index)
+         * data2 = pressed/released
+         */
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_MACRO = 0x40,
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_SHORTCUT = 0x50,
+        /*
+         * data1 = button_number (rmp index)
+         */
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_QUICKLAUNCH = 0x60,
+        /* data1 = new cpi */
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI = 0xb0,
+        /* data1 and data2 = new sensitivity */
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_SENSITIVITY = 0xc0,
+        PYRA_MOUSE_EVENT_BUTTON_TYPE_MULTIMEDIA = 0xf0,
+};
+enum {
+        PYRA_MOUSE_EVENT_BUTTON_PRESS = 0,
+        PYRA_MOUSE_EVENT_BUTTON_RELEASE = 1,
+};
+struct pyra_roccat_report {
+        uint8_t type;
+        uint8_t value;
+        uint8_t key;
+};
+#pragma pack(pop)
+struct pyra_device {
+        int actual_profile;
+        int actual_cpi;
+        int firmware_version;
+        int roccat_claimed;
+        int chrdev_minor;
+        struct mutex pyra_lock;
+        struct pyra_settings settings;
+        struct pyra_profile_settings profile_settings[5];
+        struct pyra_profile_buttons profile_buttons[5];
+};
+#endif
diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c
index bda0fd60c98d..35894444e000 100644
--- a/drivers/hid/hid-samsung.c
+++ b/drivers/hid/hid-samsung.c
@@ -61,10 +61,10 @@ static inline void samsung_irda_dev_trace(struct hid_device *hdev,
                        "descriptor\n", rsize);
 }
-static void samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
+        if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
                        rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
                        rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
                        rdesc[182] == 0x40) {
@@ -74,24 +74,25 @@ static void samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                rdesc[180] = 0x06;
                rdesc[182] = 0x42;
        } else
-        if (rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
+        if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
                        rdesc[194] == 0x25 && rdesc[195] == 0x12) {
                samsung_irda_dev_trace(hdev, 203);
                rdesc[193] = 0x1;
                rdesc[195] = 0xf;
        } else
-        if (rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
+        if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
                        rdesc[126] == 0x25 && rdesc[127] == 0x11) {
                samsung_irda_dev_trace(hdev, 135);
                rdesc[125] = 0x1;
                rdesc[127] = 0xe;
        } else
-        if (rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
+        if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
                        rdesc[162] == 0x25 && rdesc[163] == 0x01) {
                samsung_irda_dev_trace(hdev, 171);
                rdesc[161] = 0x1;
                rdesc[163] = 0x3;
        }
+        return rdesc;
 }
 #define samsung_kbd_mouse_map_key_clear(c) \
@@ -130,11 +131,12 @@ static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
        return 1;
 }
-static void samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-        unsigned int rsize)
+        unsigned int *rsize)
 {
        if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
-                samsung_irda_report_fixup(hdev, rdesc, rsize);
+                rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
+        return rdesc;
 }
 static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 402d5574b574..677bb3da10e8 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -24,24 +24,46 @@
 #include "hid-ids.h"
-#define VAIO_RDESC_CONSTANT 0x0001
+#define VAIO_RDESC_CONSTANT     (1 << 0)
+#define SIXAXIS_CONTROLLER_USB  (1 << 1)
+#define SIXAXIS_CONTROLLER_BT   (1 << 2)
 struct sony_sc {
        unsigned long quirks;
 };
 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */
-static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
        struct sony_sc *sc = hid_get_drvdata(hdev);
        if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
-                        rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
+                        *rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
                dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
                                "descriptor\n");
                rdesc[55] = 0x06;
        }
+        return rdesc;
+}
+static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
+                size_t count, unsigned char report_type)
+{
+        struct usb_interface *intf = to_usb_interface(hid->dev.parent);
+        struct usb_device *dev = interface_to_usbdev(intf);
+        struct usb_host_interface *interface = intf->cur_altsetting;
+        int report_id = buf[0];
+        int ret;
+        ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+                HID_REQ_SET_REPORT,
+                USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+                ((report_type + 1) << 8) | report_id,
+                interface->desc.bInterfaceNumber, buf, count,
+                USB_CTRL_SET_TIMEOUT);
+        return ret;
 }
 /*
@@ -49,7 +71,7 @@ static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 * to "operational".  Without this, the ps3 controller will not report any
 * events.
 */
-static int sony_set_operational_usb(struct hid_device *hdev)
+static int sixaxis_set_operational_usb(struct hid_device *hdev)
 {
        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
        struct usb_device *dev = interface_to_usbdev(intf);
@@ -74,7 +96,7 @@ static int sony_set_operational_usb(struct hid_device *hdev)
        return ret;
 }
-static int sony_set_operational_bt(struct hid_device *hdev)
+static int sixaxis_set_operational_bt(struct hid_device *hdev)
 {
        unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
        return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
@@ -108,16 +130,14 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
                goto err_free;
        }
-        switch (hdev->bus) {
+        if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
-        case BUS_USB:
+                hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
-                ret = sony_set_operational_usb(hdev);
+                ret = sixaxis_set_operational_usb(hdev);
-                break;
-        case BUS_BLUETOOTH:
-                ret = sony_set_operational_bt(hdev);
-                break;
-        default:
-                ret = 0;
        }
+        else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
+                ret = sixaxis_set_operational_bt(hdev);
+        else
+                ret = 0;
        if (ret < 0)
                goto err_stop;
@@ -137,8 +157,10 @@ static void sony_remove(struct hid_device *hdev)
 }
 static const struct hid_device_id sony_devices[] = {
-        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
-        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+                .driver_data = SIXAXIS_CONTROLLER_USB },
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
+                .driver_data = SIXAXIS_CONTROLLER_BT },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
                .driver_data = VAIO_RDESC_CONSTANT },
        { }
diff --git a/drivers/hid/hid-stantum.c b/drivers/hid/hid-stantum.c
index 90df886c5e04..3171be28c3d5 100644
--- a/drivers/hid/hid-stantum.c
+++ b/drivers/hid/hid-stantum.c
@@ -249,6 +249,8 @@ static void stantum_remove(struct hid_device *hdev)
 static const struct hid_device_id stantum_devices[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
        { }
 };
 MODULE_DEVICE_TABLE(hid, stantum_devices);
diff --git a/drivers/hid/hid-sunplus.c b/drivers/hid/hid-sunplus.c
index 438107d9f1b2..164ed568f6cf 100644
--- a/drivers/hid/hid-sunplus.c
+++ b/drivers/hid/hid-sunplus.c
@@ -22,16 +22,17 @@
 #include "hid-ids.h"
-static void sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+                unsigned int *rsize)
 {
-        if (rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
+        if (*rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
                        rdesc[106] == 0x03) {
                dev_info(&hdev->dev, "fixing up Sunplus Wireless Desktop "
                                "report descriptor\n");
                rdesc[105] = rdesc[110] = 0x03;
                rdesc[106] = rdesc[111] = 0x21;
        }
+        return rdesc;
 }
 #define sp_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
new file mode 100644
index 000000000000..05fdc85a76e5
--- /dev/null
+++ b/drivers/hid/hid-uclogic.c
@@ -0,0 +1,623 @@
+/*
+ *  HID driver for UC-Logic devices not fully compliant with HID standard
+ *
+ *  Copyright (c) 2010 Nikolai Kondrashov
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include "hid-ids.h"
+/*
+ * The original descriptors of WPXXXXU tablets have three report IDs, of
+ * which only two are used (8 and 9), and the remaining (7) seems to have
+ * the originally intended pen description which was abandoned for some
+ * reason.  From this unused description it is possible to extract the
+ * actual physical extents and resolution. All the models use the same
+ * descriptor with different extents for the unused report ID.
+ *
+ * Here it is:
+ *
+ *  Usage Page (Digitizer),         ; Digitizer (0Dh)
+ *  Usage (Pen),                    ; Pen (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (7),
+ *    Usage (Stylus),               ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (Tip Switch),         ; Tip switch (42h, momentary control)
+ *      Usage (Barrel Switch),      ; Barrel switch (44h, momentary control)
+ *      Usage (Eraser),             ; Eraser (45h, momentary control)
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (3),
+ *      Input (Variable),
+ *      Report Count (3),
+ *      Input (Constant, Variable),
+ *      Usage (In Range),           ; In range (32h, momentary control)
+ *      Report Count (1),
+ *      Input (Variable),
+ *      Report Count (1),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Report Size (16),
+ *      Report Count (1),
+ *      Push,
+ *      Unit Exponent (13),
+ *      Unit (Inch^3),
+ *      Physical Minimum (0),
+ *      Physical Maximum (Xpm),
+ *      Logical Maximum (Xlm),
+ *      Input (Variable),
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Physical Maximum (Ypm),
+ *      Logical Maximum (Ylm),
+ *      Input (Variable),
+ *      Pop,
+ *      Usage Page (Digitizer),     ; Digitizer (0Dh)
+ *      Usage (Tip Pressure),       ; Tip pressure (30h, dynamic value)
+ *      Logical Maximum (1023),
+ *      Input (Variable),
+ *      Report Size (16),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),           ; Generic desktop controls (01h)
+ *  Usage (Mouse),                  ; Mouse (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (8),
+ *    Usage (Pointer),              ; Pointer (01h, physical collection)
+ *    Collection (Physical),
+ *      Usage Page (Button),        ; Button (09h)
+ *      Usage Minimum (01h),
+ *      Usage Maximum (03h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Count (3),
+ *      Report Size (1),
+ *      Input (Variable),
+ *      Report Count (5),
+ *      Input (Constant),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Usage (Wheel),              ; Wheel (38h, dynamic value)
+ *      Usage (00h),
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (4),
+ *      Input (Variable, Relative),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),           ; Generic desktop controls (01h)
+ *  Usage (Mouse),                  ; Mouse (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (9),
+ *    Usage (Pointer),              ; Pointer (01h, physical collection)
+ *    Collection (Physical),
+ *      Usage Page (Button),        ; Button (09h)
+ *      Usage Minimum (01h),
+ *      Usage Maximum (03h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Count (3),
+ *      Report Size (1),
+ *      Input (Variable),
+ *      Report Count (5),
+ *      Input (Constant),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Logical Minimum (0),
+ *      Logical Maximum (32767),
+ *      Physical Minimum (0),
+ *      Physical Maximum (32767),
+ *      Report Count (2),
+ *      Report Size (16),
+ *      Input (Variable),
+ *      Usage Page (Digitizer),     ; Digitizer (0Dh)
+ *      Usage (Tip Pressure),       ; Tip pressure (30h, dynamic value)
+ *      Logical Maximum (1023),
+ *      Report Count (1),
+ *      Report Size (16),
+ *      Input (Variable),
+ *    End Collection,
+ *  End Collection
+ *
+ * Here are the extents values for the WPXXXXU models:
+ *
+ *              Xpm     Xlm     Ypm     Ylm
+ *  WP4030U     4000    8000    3000    6000
+ *  WP5540U     5500    11000   4000    8000
+ *  WP8060U     8000    16000   6000    12000
+ *
+ * This suggests that all of them have 2000 LPI resolution, as advertised.
+ */
+/* Size of the original descriptor of WPXXXXU tablets */
+#define WPXXXXU_RDESC_ORIG_SIZE 212
+/*
+ * Fixed WP4030U report descriptor.
+ * Although the hardware might actually support it, the mouse description
+ * has been removed, since there seems to be no devices having one and it
+ * wouldn't make much sense because of the working area size.
+ */
+static __u8 wp4030u_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x09,         /*      Report ID (9),                  */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0xA0, 0x0F,   /*          Physical Maximum (4000),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0xB8, 0x0B,   /*          Physical Maximum (3000),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0                /*  End Collection                      */
+};
+/* Fixed WP5540U report descriptor */
+static __u8 wp5540u_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x09,         /*      Report ID (9),                  */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0x7C, 0x15,   /*          Physical Maximum (5500),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0xA0, 0x0F,   /*          Physical Maximum (4000),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x01,         /*  Usage Page (Desktop),               */
+        0x09, 0x02,         /*  Usage (Mouse),                      */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x08,         /*      Report ID (8),                  */
+        0x09, 0x01,         /*      Usage (Pointer),                */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x05, 0x09,         /*          Usage Page (Button),        */
+        0x19, 0x01,         /*          Usage Minimum (01h),        */
+        0x29, 0x03,         /*          Usage Maximum (03h),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x75, 0x08,         /*          Report Size (8),            */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x15, 0x81,         /*          Logical Minimum (-127),     */
+        0x25, 0x7F,         /*          Logical Maximum (127),      */
+        0x95, 0x02,         /*          Report Count (2),           */
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x09, 0x38,         /*          Usage (Wheel),              */
+        0x15, 0xFF,         /*          Logical Minimum (-1),       */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0                /*  End Collection                      */
+};
+/* Fixed WP8060U report descriptor */
+static __u8 wp8060u_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x09,         /*      Report ID (9),                  */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0x40, 0x1F,   /*          Physical Maximum (8000),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0x70, 0x17,   /*          Physical Maximum (6000),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x01,         /*  Usage Page (Desktop),               */
+        0x09, 0x02,         /*  Usage (Mouse),                      */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x08,         /*      Report ID (8),                  */
+        0x09, 0x01,         /*      Usage (Pointer),                */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x05, 0x09,         /*          Usage Page (Button),        */
+        0x19, 0x01,         /*          Usage Minimum (01h),        */
+        0x29, 0x03,         /*          Usage Maximum (03h),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x75, 0x08,         /*          Report Size (8),            */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x15, 0x81,         /*          Logical Minimum (-127),     */
+        0x25, 0x7F,         /*          Logical Maximum (127),      */
+        0x95, 0x02,         /*          Report Count (2),           */
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x09, 0x38,         /*          Usage (Wheel),              */
+        0x15, 0xFF,         /*          Logical Minimum (-1),       */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0                /*  End Collection                      */
+};
+/*
+ * Original PF1209 report descriptor.
+ *
+ * The descriptor is similar to WPXXXXU descriptors, with an addition of a
+ * feature report (ID 4) of unknown purpose.
+ *
+ * Although the advertised resolution is 4000 LPI the unused report ID
+ * (taken from WPXXXXU, it seems) states 2000 LPI, but it is probably
+ * incorrect and is a result of blind copying without understanding. Anyway
+ * the real logical extents are always scaled to 0..32767, which IMHO spoils
+ * the precision.
+ *
+ *  Usage Page (Digitizer),         ; Digitizer (0Dh)
+ *  Usage (Pen),                    ; Pen (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (7),
+ *    Usage (Stylus),               ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (Tip Switch),         ; Tip switch (42h, momentary control)
+ *      Usage (Barrel Switch),      ; Barrel switch (44h, momentary control)
+ *      Usage (Eraser),             ; Eraser (45h, momentary control)
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (3),
+ *      Input (Variable),
+ *      Report Count (3),
+ *      Input (Constant, Variable),
+ *      Usage (In Range),           ; In range (32h, momentary control)
+ *      Report Count (1),
+ *      Input (Variable),
+ *      Report Count (1),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Report Size (16),
+ *      Report Count (1),
+ *      Push,
+ *      Unit Exponent (13),
+ *      Unit (Inch^3),
+ *      Physical Minimum (0),
+ *      Physical Maximum (12000),
+ *      Logical Maximum (24000),
+ *      Input (Variable),
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Physical Maximum (9000),
+ *      Logical Maximum (18000),
+ *      Input (Variable),
+ *      Pop,
+ *      Usage Page (Digitizer),     ; Digitizer (0Dh)
+ *      Usage (Tip Pressure),       ; Tip pressure (30h, dynamic value)
+ *      Logical Maximum (1023),
+ *      Input (Variable),
+ *      Report Size (16),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),           ; Generic desktop controls (01h)
+ *  Usage (Mouse),                  ; Mouse (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (8),
+ *    Usage (Pointer),              ; Pointer (01h, physical collection)
+ *    Collection (Physical),
+ *      Usage Page (Button),        ; Button (09h)
+ *      Usage Minimum (01h),
+ *      Usage Maximum (03h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Count (3),
+ *      Report Size (1),
+ *      Input (Variable),
+ *      Report Count (5),
+ *      Input (Constant),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Usage (Wheel),              ; Wheel (38h, dynamic value)
+ *      Usage (00h),
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (4),
+ *      Input (Variable, Relative),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),           ; Generic desktop controls (01h)
+ *  Usage (Mouse),                  ; Mouse (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (9),
+ *    Usage (Pointer),              ; Pointer (01h, physical collection)
+ *    Collection (Physical),
+ *      Usage Page (Button),        ; Button (09h)
+ *      Usage Minimum (01h),
+ *      Usage Maximum (03h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Count (3),
+ *      Report Size (1),
+ *      Input (Variable),
+ *      Report Count (5),
+ *      Input (Constant),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Logical Minimum (0),
+ *      Logical Maximum (32767),
+ *      Physical Minimum (0),
+ *      Physical Maximum (32767),
+ *      Report Count (2),
+ *      Report Size (16),
+ *      Input (Variable),
+ *      Usage Page (Digitizer),     ; Digitizer (0Dh)
+ *      Usage (Tip Pressure),       ; Tip pressure (30h, dynamic value)
+ *      Logical Maximum (1023),
+ *      Report Count (1),
+ *      Report Size (16),
+ *      Input (Variable),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),           ; Generic desktop controls (01h)
+ *  Usage (00h),
+ *  Collection (Application),
+ *    Report ID (4),
+ *    Logical Minimum (0),
+ *    Logical Maximum (255),
+ *    Usage (00h),
+ *    Report Size (8),
+ *    Report Count (3),
+ *    Feature (Variable),
+ *  End Collection
+ */
+/* Size of the original descriptor of PF1209 tablet */
+#define PF1209_RDESC_ORIG_SIZE  234
+/*
+ * Fixed PF1209 report descriptor
+ *
+ * The descriptor is fixed similarly to WP5540U and WP8060U, plus the
+ * feature report is removed, because its purpose is unknown and it is of no
+ * use to the generic HID driver anyway for now.
+ */
+static __u8 pf1209_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x09,         /*      Report ID (9),                  */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0xE0, 0x2E,   /*          Physical Maximum (12000),   */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0x28, 0x23,   /*          Physical Maximum (9000),    */
+        0x26, 0xFF, 0x7F,   /*          Logical Maximum (32767),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x01,         /*  Usage Page (Desktop),               */
+        0x09, 0x02,         /*  Usage (Mouse),                      */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x08,         /*      Report ID (8),                  */
+        0x09, 0x01,         /*      Usage (Pointer),                */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x05, 0x09,         /*          Usage Page (Button),        */
+        0x19, 0x01,         /*          Usage Minimum (01h),        */
+        0x29, 0x03,         /*          Usage Maximum (03h),        */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x05,         /*          Report Count (5),           */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x75, 0x08,         /*          Report Size (8),            */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x15, 0x81,         /*          Logical Minimum (-127),     */
+        0x25, 0x7F,         /*          Logical Maximum (127),      */
+        0x95, 0x02,         /*          Report Count (2),           */
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x09, 0x38,         /*          Usage (Wheel),              */
+        0x15, 0xFF,         /*          Logical Minimum (-1),       */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x81, 0x01,         /*          Input (Constant),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0                /*  End Collection                      */
+};
+static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+                                        unsigned int *rsize)
+{
+        switch (hdev->product) {
+        case USB_DEVICE_ID_UCLOGIC_TABLET_PF1209:
+                if (*rsize == PF1209_RDESC_ORIG_SIZE) {
+                        rdesc = pf1209_rdesc_fixed;
+                        *rsize = sizeof(pf1209_rdesc_fixed);
+                }
+                break;
+        case USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U:
+                if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
+                        rdesc = wp4030u_rdesc_fixed;
+                        *rsize = sizeof(wp4030u_rdesc_fixed);
+                }
+                break;
+        case USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U:
+                if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
+                        rdesc = wp5540u_rdesc_fixed;
+                        *rsize = sizeof(wp5540u_rdesc_fixed);
+                }
+                break;
+        case USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U:
+                if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
+                        rdesc = wp8060u_rdesc_fixed;
+                        *rsize = sizeof(wp8060u_rdesc_fixed);
+                }
+                break;
+        }
+        return rdesc;
+}
+static const struct hid_device_id uclogic_devices[] = {
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
+                                USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
+                                USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
+                                USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
+                                USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
+        { }
+};
+MODULE_DEVICE_TABLE(hid, uclogic_devices);
+static struct hid_driver uclogic_driver = {
+        .name = "uclogic",
+        .id_table = uclogic_devices,
+        .report_fixup = uclogic_report_fixup,
+};
+static int __init uclogic_init(void)
+{
+        return hid_register_driver(&uclogic_driver);
+}
+static void __exit uclogic_exit(void)
+{
+        hid_unregister_driver(&uclogic_driver);
+}
+module_init(uclogic_init);
+module_exit(uclogic_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c
new file mode 100644
index 000000000000..b3a4163f2e67
--- /dev/null
+++ b/drivers/hid/hid-waltop.c
@@ -0,0 +1,1099 @@
+/*
+ *  HID driver for Waltop devices not fully compliant with HID standard
+ *
+ *  Copyright (c) 2010 Nikolai Kondrashov
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include "hid-ids.h"
+/*
+ * There exists an official driver on the manufacturer's website, which
+ * wasn't submitted to the kernel, for some reason. The official driver
+ * doesn't seem to support extra features of some tablets, like wheels.
+ *
+ * It shows that the feature report ID 2 could be used to control any waltop
+ * tablet input mode, switching it between "default", "tablet" and "ink".
+ *
+ * This driver only uses "default" mode for all the supported tablets. This
+ * mode tries to be HID-compatible (not very successfully), but cripples the
+ * resolution of some tablets.
+ *
+ * The "tablet" mode uses some proprietary, yet decipherable protocol, which
+ * represents the correct resolution, but is possibly HID-incompatible (i.e.
+ * indescribable by a report descriptor).
+ *
+ * The purpose of the "ink" mode is unknown.
+ *
+ * The feature reports needed for switching to each mode are these:
+ *
+ * 02 16 00     default
+ * 02 16 01     tablet
+ * 02 16 02     ink
+ */
+/*
+ * Original Slim Tablet 5.8 inch report descriptor.
+ *
+ * All the reports except the report with ID 16 (the stylus) are unused,
+ * possibly because the tablet is not configured to, or because they were
+ * just copied from a more capable model. The full purpose of features
+ * described for report ID 2 is unknown.
+ *
+ * The stylus buttons are described as three bit fields, whereas actually
+ * it's an "array", i.e. they're reported as button numbers (1, 2 and 3).
+ * The "eraser" field is not used. There is also a "push" without a "pop" in
+ * the stylus description.
+ *
+ *  Usage Page (Desktop),           ; Generic desktop controls (01h)
+ *  Usage (Mouse),                  ; Mouse (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (1),
+ *    Usage (Pointer),              ; Pointer (01h, physical collection)
+ *    Collection (Physical),
+ *      Usage Page (Button),        ; Button (09h)
+ *      Usage Minimum (01h),
+ *      Usage Maximum (05h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Size (3),
+ *      Report Count (1),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Usage (Wheel),              ; Wheel (38h, dynamic value)
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (3),
+ *      Input (Variable, Relative),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Digitizer),         ; Digitizer (0Dh)
+ *  Usage (Pen),                    ; Pen (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (2),
+ *    Usage (Stylus),               ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *      Usage (Azimuth),            ; Azimuth (3Fh, dynamic value)
+ *      Usage (Altitude),           ; Altitude (40h, dynamic value)
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (2),
+ *      Feature (Variable),
+ *    End Collection,
+ *    Report ID (5),
+ *    Usage Page (Digitizer),       ; Digitizer (0Dh)
+ *    Usage (Stylus),               ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (10),
+ *    Usage Page (Digitizer),       ; Digitizer (0Dh)
+ *    Usage (Stylus),               ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (3),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (16),
+ *    Usage (Stylus),               ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (Tip Switch),         ; Tip switch (42h, momentary control)
+ *      Usage (Barrel Switch),      ; Barrel switch (44h, momentary control)
+ *      Usage (Invert),             ; Invert (3Ch, momentary control)
+ *      Usage (Eraser),             ; Eraser (45h, momentary control)
+ *      Usage (In Range),           ; In range (32h, momentary control)
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Count (3),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),       ; Generic desktop controls (01h)
+ *      Usage (X),                  ; X (30h, dynamic value)
+ *      Report Size (16),
+ *      Report Count (1),
+ *      Push,
+ *      Unit Exponent (13),
+ *      Unit (Inch^3),
+ *      Logical Minimum (0),
+ *      Logical Maximum (10000),
+ *      Physical Minimum (0),
+ *      Physical Maximum (10000),
+ *      Input (Variable),
+ *      Usage (Y),                  ; Y (31h, dynamic value)
+ *      Logical Maximum (6000),
+ *      Physical Maximum (6000),
+ *      Input (Variable),
+ *      Usage Page (Digitizer),     ; Digitizer (0Dh)
+ *      Usage (Tip Pressure),       ; Tip pressure (30h, dynamic value)
+ *      Logical Minimum (0),
+ *      Logical Maximum (1023),
+ *      Physical Minimum (0),
+ *      Physical Maximum (1023),
+ *      Input (Variable),
+ *    End Collection,
+ *  End Collection
+ */
+/* Size of the original report descriptor of Slim Tablet 5.8 inch */
+#define SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE    222
+/*
+ * Fixed Slim Tablet 5.8 inch descriptor.
+ *
+ * All the reports except the stylus report (ID 16) were removed as unused.
+ * The stylus buttons description was fixed.
+ */
+static __u8 slim_tablet_5_8_inch_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x10,         /*      Report ID (16),                 */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x15, 0x01,         /*          Logical Minimum (1),        */
+        0x25, 0x03,         /*          Logical Maximum (3),        */
+        0x75, 0x04,         /*          Report Size (4),            */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x80,               /*          Input,                      */
+        0x09, 0x32,         /*          Usage (In Range),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0x88, 0x13,   /*          Physical Maximum (5000),    */
+        0x26, 0x10, 0x27,   /*          Logical Maximum (10000),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0xB8, 0x0B,   /*          Physical Maximum (3000),    */
+        0x26, 0x70, 0x17,   /*          Logical Maximum (6000),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0                /*  End Collection                      */
+};
+/*
+ * Original Slim Tablet 12.1 inch report descriptor.
+ *
+ * The descriptor is similar to the Slim Tablet 5.8 inch descriptor with the
+ * addition of a keyboard report, seemingly unused. It may have get here
+ * from a Media Tablet - probably an unimplemented feature.
+ *
+ *  Usage Page (Desktop),             ; Generic desktop controls (01h)
+ *  Usage (Mouse),                    ; Mouse (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (1),
+ *    Usage (Pointer),                ; Pointer (01h, physical collection)
+ *    Collection (Physical),
+ *      Usage Page (Button),          ; Button (09h)
+ *      Usage Minimum (01h),
+ *      Usage Maximum (05h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Size (3),
+ *      Report Count (1),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),         ; Generic desktop controls (01h)
+ *      Usage (X),                    ; X (30h, dynamic value)
+ *      Usage (Y),                    ; Y (31h, dynamic value)
+ *      Usage (Wheel),                ; Wheel (38h, dynamic value)
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (3),
+ *      Input (Variable, Relative),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Digitizer),           ; Digitizer (0Dh)
+ *  Usage (Pen),                      ; Pen (02h, application collection)
+ *  Collection (Application),
+ *    Report ID (2),
+ *    Usage (Stylus),                 ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *      Usage (Azimuth),              ; Azimuth (3Fh, dynamic value)
+ *      Usage (Altitude),             ; Altitude (40h, dynamic value)
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (2),
+ *      Feature (Variable),
+ *    End Collection,
+ *    Report ID (5),
+ *    Usage Page (Digitizer),         ; Digitizer (0Dh)
+ *    Usage (Stylus),                 ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (10),
+ *    Usage Page (Digitizer),         ; Digitizer (0Dh)
+ *    Usage (Stylus),                 ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (3),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (16),
+ *    Usage (Stylus),                 ; Stylus (20h, logical collection)
+ *    Collection (Physical),
+ *      Usage (Tip Switch),           ; Tip switch (42h, momentary control)
+ *      Usage (Barrel Switch),        ; Barrel switch (44h, momentary control)
+ *      Usage (Invert),               ; Invert (3Ch, momentary control)
+ *      Usage (Eraser),               ; Eraser (45h, momentary control)
+ *      Usage (In Range),             ; In range (32h, momentary control)
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Count (3),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),         ; Generic desktop controls (01h)
+ *      Usage (X),                    ; X (30h, dynamic value)
+ *      Report Size (16),
+ *      Report Count (1),
+ *      Push,
+ *      Unit Exponent (13),
+ *      Unit (Inch^3),
+ *      Logical Minimum (0),
+ *      Logical Maximum (20000),
+ *      Physical Minimum (0),
+ *      Physical Maximum (20000),
+ *      Input (Variable),
+ *      Usage (Y),                    ; Y (31h, dynamic value)
+ *      Logical Maximum (12500),
+ *      Physical Maximum (12500),
+ *      Input (Variable),
+ *      Usage Page (Digitizer),       ; Digitizer (0Dh)
+ *      Usage (Tip Pressure),         ; Tip pressure (30h, dynamic value)
+ *      Logical Minimum (0),
+ *      Logical Maximum (1023),
+ *      Physical Minimum (0),
+ *      Physical Maximum (1023),
+ *      Input (Variable),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),             ; Generic desktop controls (01h)
+ *  Usage (Keyboard),                 ; Keyboard (06h, application collection)
+ *  Collection (Application),
+ *    Report ID (13),
+ *    Usage Page (Keyboard),          ; Keyboard/keypad (07h)
+ *    Usage Minimum (KB Leftcontrol), ; Keyboard left control
+ *                                    ; (E0h, dynamic value)
+ *    Usage Maximum (KB Right GUI),   ; Keyboard right GUI (E7h, dynamic value)
+ *    Logical Minimum (0),
+ *    Logical Maximum (1),
+ *    Report Size (1),
+ *    Report Count (8),
+ *    Input (Variable),
+ *    Report Size (8),
+ *    Report Count (1),
+ *    Input (Constant),
+ *    Usage Page (Keyboard),          ; Keyboard/keypad (07h)
+ *    Usage Minimum (None),           ; No event (00h, selector)
+ *    Usage Maximum (KB Application), ; Keyboard Application (65h, selector)
+ *    Logical Minimum (0),
+ *    Logical Maximum (101),
+ *    Report Size (8),
+ *    Report Count (5),
+ *    Input,
+ *  End Collection
+ */
+/* Size of the original report descriptor of Slim Tablet 12.1 inch */
+#define SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE   269
+/*
+ * Fixed Slim Tablet 12.1 inch descriptor.
+ *
+ * All the reports except the stylus report (ID 16) were removed as unused.
+ * The stylus buttons description was fixed.
+ */
+static __u8 slim_tablet_12_1_inch_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x10,         /*      Report ID (16),                 */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x15, 0x01,         /*          Logical Minimum (1),        */
+        0x25, 0x03,         /*          Logical Maximum (3),        */
+        0x75, 0x04,         /*          Report Size (4),            */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x80,               /*          Input,                      */
+        0x09, 0x32,         /*          Usage (In Range),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0x10, 0x27,   /*          Physical Maximum (10000),   */
+        0x26, 0x20, 0x4E,   /*          Logical Maximum (20000),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0x6A, 0x18,   /*          Physical Maximum (6250),    */
+        0x26, 0xD4, 0x30,   /*          Logical Maximum (12500),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0                /*  End Collection                      */
+};
+/*
+ * Original Media Tablet 10.6 inch report descriptor.
+ *
+ * There are at least two versions of this model in the wild. They are
+ * represented by Genius G-Pen M609 (older version) and Genius G-Pen M609X
+ * (newer version).
+ *
+ * Both versions have the usual pen with two barrel buttons and two
+ * identical wheels with center buttons in the top corners of the tablet
+ * base. They also have buttons on the top, between the wheels, for
+ * selecting the wheels' functions and wide/standard mode. In the wide mode
+ * the whole working surface is sensed, in the standard mode a narrower area
+ * is sensed, but the logical report extents remain the same. These modes
+ * correspond roughly to 16:9 and 4:3 aspect ratios respectively.
+ *
+ * The older version has three wheel function buttons ("scroll", "zoom" and
+ * "volume") and two separate buttons for wide and standard mode. The newer
+ * version has four wheel function buttons (plus "brush") and only one
+ * button is used for selecting wide/standard mode. So, the total number of
+ * buttons remains the same, but one of the mode buttons is repurposed as a
+ * wheels' function button in the newer version.
+ *
+ * The wheel functions are:
+ * scroll   - the wheels act as scroll wheels, the center buttons switch
+ *            between vertical and horizontal scrolling;
+ * zoom     - the wheels zoom in/out, the buttons supposedly reset to 100%;
+ * volume   - the wheels control the sound volume, the buttons mute;
+ * brush    - the wheels are supposed to control brush width in a graphics
+ *            editor, the buttons do nothing.
+ *
+ * Below is the newer version's report descriptor. It may very well be that
+ * the older version's descriptor is different and thus it won't be
+ * supported.
+ *
+ * The mouse report (ID 1) only uses the wheel field for reporting the tablet
+ * wheels' scroll mode. The keyboard report (ID 13) is used to report the
+ * wheels' zoom and brush control functions as key presses. The report ID 12
+ * is used to report the wheels' volume control functions. The stylus report
+ * (ID 16) has the same problems as the Slim Tablet 5.8 inch report has.
+ *
+ * The rest of the reports are unused, at least in the default configuration.
+ * The purpose of the features is unknown.
+ *
+ *  Usage Page (Desktop),
+ *  Usage (Mouse),
+ *  Collection (Application),
+ *    Report ID (1),
+ *    Usage (Pointer),
+ *    Collection (Physical),
+ *      Usage Page (Button),
+ *      Usage Minimum (01h),
+ *      Usage Maximum (05h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Size (3),
+ *      Report Count (1),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),
+ *      Usage (X),
+ *      Usage (Y),
+ *      Usage (Wheel),
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (3),
+ *      Input (Variable, Relative),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Digitizer),
+ *  Usage (Pen),
+ *  Collection (Application),
+ *    Report ID (2),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *      Usage (Azimuth),
+ *      Usage (Altitude),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (2),
+ *      Feature (Variable),
+ *    End Collection,
+ *    Report ID (5),
+ *    Usage Page (Digitizer),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (10),
+ *    Usage Page (Digitizer),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (16),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (Tip Switch),
+ *      Usage (Barrel Switch),
+ *      Usage (Invert),
+ *      Usage (Eraser),
+ *      Usage (In Range),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Count (3),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),
+ *      Usage (X),
+ *      Report Size (16),
+ *      Report Count (1),
+ *      Push,
+ *      Unit Exponent (13),
+ *      Unit (Inch^3),
+ *      Logical Minimum (0),
+ *      Logical Maximum (18000),
+ *      Physical Minimum (0),
+ *      Physical Maximum (18000),
+ *      Input (Variable),
+ *      Usage (Y),
+ *      Logical Maximum (11000),
+ *      Physical Maximum (11000),
+ *      Input (Variable),
+ *      Usage Page (Digitizer),
+ *      Usage (Tip Pressure),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1023),
+ *      Physical Minimum (0),
+ *      Physical Maximum (1023),
+ *      Input (Variable),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),
+ *  Usage (Keyboard),
+ *  Collection (Application),
+ *    Report ID (13),
+ *    Usage Page (Keyboard),
+ *    Usage Minimum (KB Leftcontrol),
+ *    Usage Maximum (KB Right GUI),
+ *    Logical Minimum (0),
+ *    Logical Maximum (1),
+ *    Report Size (1),
+ *    Report Count (8),
+ *    Input (Variable),
+ *    Report Size (8),
+ *    Report Count (1),
+ *    Input (Constant),
+ *    Usage Page (Keyboard),
+ *    Usage Minimum (None),
+ *    Usage Maximum (KB Application),
+ *    Logical Minimum (0),
+ *    Logical Maximum (101),
+ *    Report Size (8),
+ *    Report Count (5),
+ *    Input,
+ *  End Collection,
+ *  Usage Page (Consumer),
+ *  Usage (Consumer Control),
+ *  Collection (Application),
+ *    Report ID (12),
+ *    Usage (Volume Inc),
+ *    Usage (Volume Dec),
+ *    Usage (Mute),
+ *    Logical Minimum (0),
+ *    Logical Maximum (1),
+ *    Report Size (1),
+ *    Report Count (3),
+ *    Input (Variable, Relative),
+ *    Report Size (5),
+ *    Report Count (1),
+ *    Input (Constant, Variable, Relative),
+ *  End Collection
+ */
+/* Size of the original report descriptor of Media Tablet 10.6 inch */
+#define MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE  300
+/*
+ * Fixed Media Tablet 10.6 inch descriptor.
+ *
+ * The descriptions of reports unused in the default configuration are
+ * removed. The stylus report (ID 16) is fixed similarly to Slim Tablet 5.8
+ * inch.  The unused mouse report (ID 1) fields are replaced with constant
+ * padding.
+ *
+ * The keyboard report (ID 13) is hacked to instead have an "array" field
+ * reporting consumer page controls, and all the unused bits are masked out
+ * with constant padding. The "brush" wheels' function is represented as "Scan
+ * Previous/Next Track" controls due to the lack of brush controls in the
+ * usage tables specification.
+ */
+static __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x10,         /*      Report ID (16),                 */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x15, 0x01,         /*          Logical Minimum (1),        */
+        0x25, 0x03,         /*          Logical Maximum (3),        */
+        0x75, 0x04,         /*          Report Size (4),            */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x80,               /*          Input,                      */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x09, 0x32,         /*          Usage (In Range),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0x28, 0x23,   /*          Physical Maximum (9000),    */
+        0x26, 0x50, 0x46,   /*          Logical Maximum (18000),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0x7C, 0x15,   /*          Physical Maximum (5500),    */
+        0x26, 0xF8, 0x2A,   /*          Logical Maximum (11000),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x01,         /*  Usage Page (Desktop),               */
+        0x09, 0x02,         /*  Usage (Mouse),                      */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x01,         /*      Report ID (1),                  */
+        0x09, 0x01,         /*      Usage (Pointer),                */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x08,         /*          Report Size (8),            */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0x95, 0x02,         /*          Report Count (2),           */
+        0x15, 0xFF,         /*          Logical Minimum (-1),       */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x09, 0x38,         /*          Usage (Wheel),              */
+        0x0B, 0x38, 0x02,   /*          Usage (Consumer AC Pan),    */
+                0x0C, 0x00,
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0x95, 0x02,         /*          Report Count (2),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x0C,         /*  Usage Page (Consumer),              */
+        0x09, 0x01,         /*  Usage (Consumer Control),           */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x0D,         /*      Report ID (13),                 */
+        0x95, 0x01,         /*      Report Count (1),               */
+        0x75, 0x10,         /*      Report Size (16),               */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0x0A, 0x2F, 0x02,   /*      Usage (AC Zoom),                */
+        0x0A, 0x2E, 0x02,   /*      Usage (AC Zoom Out),            */
+        0x0A, 0x2D, 0x02,   /*      Usage (AC Zoom In),             */
+        0x09, 0xB6,         /*      Usage (Scan Previous Track),    */
+        0x09, 0xB5,         /*      Usage (Scan Next Track),        */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x0A, 0x2E, 0x02,   /*      Usage (AC Zoom Out),            */
+        0x0A, 0x2D, 0x02,   /*      Usage (AC Zoom In),             */
+        0x15, 0x0C,         /*      Logical Minimum (12),           */
+        0x25, 0x17,         /*      Logical Maximum (23),           */
+        0x75, 0x05,         /*      Report Size (5),                */
+        0x80,               /*      Input,                          */
+        0x75, 0x03,         /*      Report Size (3),                */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0x75, 0x20,         /*      Report Size (32),               */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0xC0,               /*  End Collection,                     */
+        0x09, 0x01,         /*  Usage (Consumer Control),           */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x0C,         /*      Report ID (12),                 */
+        0x75, 0x01,         /*      Report Size (1),                */
+        0x09, 0xE9,         /*      Usage (Volume Inc),             */
+        0x09, 0xEA,         /*      Usage (Volume Dec),             */
+        0x09, 0xE2,         /*      Usage (Mute),                   */
+        0x14,               /*      Logical Minimum (0),            */
+        0x25, 0x01,         /*      Logical Maximum (1),            */
+        0x95, 0x03,         /*      Report Count (3),               */
+        0x81, 0x06,         /*      Input (Variable, Relative),     */
+        0x95, 0x35,         /*      Report Count (53),              */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0xC0                /*  End Collection                      */
+};
+/*
+ * Original Media Tablet 14.1 inch report descriptor.
+ *
+ * There are at least two versions of this model in the wild. They are
+ * represented by Genius G-Pen M712 (older version) and Genius G-Pen M712X
+ * (newer version). The hardware difference between these versions is the same
+ * as between older and newer versions of Media Tablet 10.6 inch. The report
+ * descriptors are identical for both versions.
+ *
+ * The function, behavior and report descriptor of this tablet is similar to
+ * that of Media Tablet 10.6 inch. However, there is one more field (with
+ * Consumer AC Pan usage) in the mouse description. Then the tablet X and Y
+ * logical extents both get scaled to 0..16383 range (a hardware limit?),
+ * which kind of defeats the advertised 4000 LPI resolution, considering the
+ * physical extents of 12x7.25 inches. Plus, reports 5, 10 and 255 are used
+ * sometimes (while moving the pen) with unknown purpose. Also, the key codes
+ * generated for zoom in/out are different.
+ *
+ *  Usage Page (Desktop),
+ *  Usage (Mouse),
+ *  Collection (Application),
+ *    Report ID (1),
+ *    Usage (Pointer),
+ *    Collection (Physical),
+ *      Usage Page (Button),
+ *      Usage Minimum (01h),
+ *      Usage Maximum (05h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Size (3),
+ *      Report Count (1),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),
+ *      Usage (X),
+ *      Usage (Y),
+ *      Usage (Wheel),
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (3),
+ *      Input (Variable, Relative),
+ *      Usage Page (Consumer),
+ *      Logical Minimum (-127),
+ *      Logical Maximum (127),
+ *      Report Size (8),
+ *      Report Count (1),
+ *      Usage (AC Pan),
+ *      Input (Variable, Relative),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Digitizer),
+ *  Usage (Pen),
+ *  Collection (Application),
+ *    Report ID (2),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *      Usage (Azimuth),
+ *      Usage (Altitude),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (2),
+ *      Feature (Variable),
+ *    End Collection,
+ *    Report ID (5),
+ *    Usage Page (Digitizer),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (10),
+ *    Usage Page (Digitizer),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (00h),
+ *      Logical Minimum (0),
+ *      Logical Maximum (255),
+ *      Report Size (8),
+ *      Report Count (7),
+ *      Input (Variable),
+ *    End Collection,
+ *    Report ID (16),
+ *    Usage (Stylus),
+ *    Collection (Physical),
+ *      Usage (Tip Switch),
+ *      Usage (Barrel Switch),
+ *      Usage (Invert),
+ *      Usage (Eraser),
+ *      Usage (In Range),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1),
+ *      Report Size (1),
+ *      Report Count (5),
+ *      Input (Variable),
+ *      Report Count (3),
+ *      Input (Constant, Variable),
+ *      Usage Page (Desktop),
+ *      Usage (X),
+ *      Report Size (16),
+ *      Report Count (1),
+ *      Push,
+ *      Unit Exponent (13),
+ *      Unit (Inch^3),
+ *      Logical Minimum (0),
+ *      Logical Maximum (16383),
+ *      Physical Minimum (0),
+ *      Physical Maximum (16383),
+ *      Input (Variable),
+ *      Usage (Y),
+ *      Input (Variable),
+ *      Usage Page (Digitizer),
+ *      Usage (Tip Pressure),
+ *      Logical Minimum (0),
+ *      Logical Maximum (1023),
+ *      Physical Minimum (0),
+ *      Physical Maximum (1023),
+ *      Input (Variable),
+ *    End Collection,
+ *  End Collection,
+ *  Usage Page (Desktop),
+ *  Usage (Keyboard),
+ *  Collection (Application),
+ *    Report ID (13),
+ *    Usage Page (Keyboard),
+ *    Usage Minimum (KB Leftcontrol),
+ *    Usage Maximum (KB Right GUI),
+ *    Logical Minimum (0),
+ *    Logical Maximum (1),
+ *    Report Size (1),
+ *    Report Count (8),
+ *    Input (Variable),
+ *    Report Size (8),
+ *    Report Count (1),
+ *    Input (Constant),
+ *    Usage Page (Keyboard),
+ *    Usage Minimum (None),
+ *    Usage Maximum (KB Application),
+ *    Logical Minimum (0),
+ *    Logical Maximum (101),
+ *    Report Size (8),
+ *    Report Count (5),
+ *    Input,
+ *  End Collection,
+ *  Usage Page (Consumer),
+ *  Usage (Consumer Control),
+ *  Collection (Application),
+ *    Report ID (12),
+ *    Usage (Volume Inc),
+ *    Usage (Volume Dec),
+ *    Usage (Mute),
+ *    Logical Minimum (0),
+ *    Logical Maximum (1),
+ *    Report Size (1),
+ *    Report Count (3),
+ *    Input (Variable, Relative),
+ *    Report Size (5),
+ *    Report Count (1),
+ *    Input (Constant, Variable, Relative),
+ *  End Collection
+ */
+/* Size of the original report descriptor of Media Tablet 14.1 inch */
+#define MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE  309
+/*
+ * Fixed Media Tablet 14.1 inch descriptor.
+ * It is fixed similarly to the Media Tablet 10.6 inch descriptor.
+ */
+static __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
+        0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+        0x09, 0x02,         /*  Usage (Pen),                        */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x10,         /*      Report ID (16),                 */
+        0x09, 0x20,         /*      Usage (Stylus),                 */
+        0xA0,               /*      Collection (Physical),          */
+        0x09, 0x42,         /*          Usage (Tip Switch),         */
+        0x09, 0x44,         /*          Usage (Barrel Switch),      */
+        0x09, 0x46,         /*          Usage (Tablet Pick),        */
+        0x15, 0x01,         /*          Logical Minimum (1),        */
+        0x25, 0x03,         /*          Logical Maximum (3),        */
+        0x75, 0x04,         /*          Report Size (4),            */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x80,               /*          Input,                      */
+        0x75, 0x01,         /*          Report Size (1),            */
+        0x09, 0x32,         /*          Usage (In Range),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0x75, 0x10,         /*          Report Size (16),           */
+        0x95, 0x01,         /*          Report Count (1),           */
+        0x14,               /*          Logical Minimum (0),        */
+        0xA4,               /*          Push,                       */
+        0x05, 0x01,         /*          Usage Page (Desktop),       */
+        0x65, 0x13,         /*          Unit (Inch),                */
+        0x55, 0xFD,         /*          Unit Exponent (-3),         */
+        0x34,               /*          Physical Minimum (0),       */
+        0x09, 0x30,         /*          Usage (X),                  */
+        0x46, 0xE0, 0x2E,   /*          Physical Maximum (12000),   */
+        0x26, 0xFF, 0x3F,   /*          Logical Maximum (16383),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0x09, 0x31,         /*          Usage (Y),                  */
+        0x46, 0x52, 0x1C,   /*          Physical Maximum (7250),    */
+        0x26, 0xFF, 0x3F,   /*          Logical Maximum (16383),    */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xB4,               /*          Pop,                        */
+        0x09, 0x30,         /*          Usage (Tip Pressure),       */
+        0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+        0x81, 0x02,         /*          Input (Variable),           */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x01,         /*  Usage Page (Desktop),               */
+        0x09, 0x02,         /*  Usage (Mouse),                      */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x01,         /*      Report ID (1),                  */
+        0x09, 0x01,         /*      Usage (Pointer),                */
+        0xA0,               /*      Collection (Physical),          */
+        0x75, 0x08,         /*          Report Size (8),            */
+        0x95, 0x03,         /*          Report Count (3),           */
+        0x81, 0x03,         /*          Input (Constant, Variable), */
+        0x95, 0x02,         /*          Report Count (2),           */
+        0x15, 0xFF,         /*          Logical Minimum (-1),       */
+        0x25, 0x01,         /*          Logical Maximum (1),        */
+        0x09, 0x38,         /*          Usage (Wheel),              */
+        0x0B, 0x38, 0x02,   /*          Usage (Consumer AC Pan),    */
+                0x0C, 0x00,
+        0x81, 0x06,         /*          Input (Variable, Relative), */
+        0xC0,               /*      End Collection,                 */
+        0xC0,               /*  End Collection,                     */
+        0x05, 0x0C,         /*  Usage Page (Consumer),              */
+        0x09, 0x01,         /*  Usage (Consumer Control),           */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x0D,         /*      Report ID (13),                 */
+        0x95, 0x01,         /*      Report Count (1),               */
+        0x75, 0x10,         /*      Report Size (16),               */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0x0A, 0x2F, 0x02,   /*      Usage (AC Zoom),                */
+        0x0A, 0x2E, 0x02,   /*      Usage (AC Zoom Out),            */
+        0x0A, 0x2D, 0x02,   /*      Usage (AC Zoom In),             */
+        0x09, 0xB6,         /*      Usage (Scan Previous Track),    */
+        0x09, 0xB5,         /*      Usage (Scan Next Track),        */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x08,               /*      Usage (00h),                    */
+        0x0A, 0x2E, 0x02,   /*      Usage (AC Zoom Out),            */
+        0x0A, 0x2D, 0x02,   /*      Usage (AC Zoom In),             */
+        0x15, 0x0C,         /*      Logical Minimum (12),           */
+        0x25, 0x17,         /*      Logical Maximum (23),           */
+        0x75, 0x05,         /*      Report Size (5),                */
+        0x80,               /*      Input,                          */
+        0x75, 0x03,         /*      Report Size (3),                */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0x75, 0x20,         /*      Report Size (32),               */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0xC0,               /*  End Collection,                     */
+        0x09, 0x01,         /*  Usage (Consumer Control),           */
+        0xA1, 0x01,         /*  Collection (Application),           */
+        0x85, 0x0C,         /*      Report ID (12),                 */
+        0x75, 0x01,         /*      Report Size (1),                */
+        0x09, 0xE9,         /*      Usage (Volume Inc),             */
+        0x09, 0xEA,         /*      Usage (Volume Dec),             */
+        0x09, 0xE2,         /*      Usage (Mute),                   */
+        0x14,               /*      Logical Minimum (0),            */
+        0x25, 0x01,         /*      Logical Maximum (1),            */
+        0x95, 0x03,         /*      Report Count (3),               */
+        0x81, 0x06,         /*      Input (Variable, Relative),     */
+        0x75, 0x05,         /*      Report Size (5),                */
+        0x81, 0x03,         /*      Input (Constant, Variable),     */
+        0xC0                /*  End Collection                      */
+};
+static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+                unsigned int *rsize)
+{
+        switch (hdev->product) {
+        case USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH:
+                if (*rsize == SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE) {
+                        rdesc = slim_tablet_5_8_inch_rdesc_fixed;
+                        *rsize = sizeof(slim_tablet_5_8_inch_rdesc_fixed);
+                }
+                break;
+        case USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH:
+                if (*rsize == SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE) {
+                        rdesc = slim_tablet_12_1_inch_rdesc_fixed;
+                        *rsize = sizeof(slim_tablet_12_1_inch_rdesc_fixed);
+                }
+                break;
+        case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH:
+                if (*rsize == MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE) {
+                        rdesc = media_tablet_10_6_inch_rdesc_fixed;
+                        *rsize = sizeof(media_tablet_10_6_inch_rdesc_fixed);
+                }
+                break;
+        case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH:
+                if (*rsize == MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE) {
+                        rdesc = media_tablet_14_1_inch_rdesc_fixed;
+                        *rsize = sizeof(media_tablet_14_1_inch_rdesc_fixed);
+                }
+                break;
+        }
+        return rdesc;
+}
+static const struct hid_device_id waltop_devices[] = {
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
+                                USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
+                                USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
+                                USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
+                                USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
+        { }
+};
+MODULE_DEVICE_TABLE(hid, waltop_devices);
+static struct hid_driver waltop_driver = {
+        .name = "waltop",
+        .id_table = waltop_devices,
+        .report_fixup = waltop_report_fixup,
+};
+static int __init waltop_init(void)
+{
+        return hid_register_driver(&waltop_driver);
+}
+static void __exit waltop_exit(void)
+{
+        hid_unregister_driver(&waltop_driver);
+}
+module_init(waltop_init);
+module_exit(waltop_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-zydacron.c b/drivers/hid/hid-zydacron.c
index 9e8d35a203e4..aac1f9273149 100644
--- a/drivers/hid/hid-zydacron.c
+++ b/drivers/hid/hid-zydacron.c
@@ -27,10 +27,10 @@ struct zc_device {
 * Zydacron remote control has an invalid HID report descriptor,
 * that needs fixing before we can parse it.
 */
-static void zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-        unsigned int rsize)
+        unsigned int *rsize)
 {
-        if (rsize >= 253 &&
+        if (*rsize >= 253 &&
                rdesc[0x96] == 0xbc && rdesc[0x97] == 0xff &&
                rdesc[0xca] == 0xbc && rdesc[0xcb] == 0xff &&
                rdesc[0xe1] == 0xbc && rdesc[0xe2] == 0xff) {
@@ -40,6 +40,7 @@ static void zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                        rdesc[0x96] = rdesc[0xca] = rdesc[0xe1] = 0x0c;
                        rdesc[0x97] = rdesc[0xcb] = rdesc[0xe2] = 0x00;
                }
+        return rdesc;
 }
 #define zc_map_key_clear(c) \
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 925992f549f0..8a4b32dca9f7 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -218,9 +218,13 @@ static int hidraw_release(struct inode * inode, struct file * file)
        unsigned int minor = iminor(inode);
        struct hidraw *dev;
        struct hidraw_list *list = file->private_data;
+        int ret;
-        if (!hidraw_table[minor])
+        mutex_lock(&minors_lock);
-                return -ENODEV;
+        if (!hidraw_table[minor]) {
+                ret = -ENODEV;
+                goto unlock;
+        }
        list_del(&list->node);
        dev = hidraw_table[minor];
@@ -233,10 +237,12 @@ static int hidraw_release(struct inode * inode, struct file * file)
                        kfree(list->hidraw);
                }
        }
        kfree(list);
+        ret = 0;
+unlock:
+        mutex_unlock(&minors_lock);
-        return 0;
+        return ret;
 }
 static long hidraw_ioctl(struct file *file, unsigned int cmd,
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 599041a7f670..5489eab3a6bd 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -807,9 +807,10 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
        struct usb_host_interface *interface = intf->cur_altsetting;
        int ret;
-        if (usbhid->urbout) {
+        if (usbhid->urbout && report_type != HID_FEATURE_REPORT) {
                int actual_length;
                int skipped_report_id = 0;
                if (buf[0] == 0x0) {
                        /* Don't send the Report ID */
                        buf++;
@@ -1469,9 +1470,6 @@ static int __init hid_init(void)
        retval = usbhid_quirks_init(quirks_param);
        if (retval)
                goto usbhid_quirks_init_fail;
-        retval = hiddev_init();
-        if (retval)
-                goto hiddev_init_fail;
        retval = usb_register(&hid_driver);
        if (retval)
                goto usb_register_fail;
@@ -1479,8 +1477,6 @@ static int __init hid_init(void)
        return 0;
 usb_register_fail:
-        hiddev_exit();
-hiddev_init_fail:
        usbhid_quirks_exit();
 usbhid_quirks_init_fail:
        hid_unregister_driver(&hid_usb_driver);
@@ -1493,7 +1489,6 @@ no_queue:
 static void __exit hid_exit(void)
 {
        usb_deregister(&hid_driver);
-        hiddev_exit();
        usbhid_quirks_exit();
        hid_unregister_driver(&hid_usb_driver);
        destroy_workqueue(resumption_waker);
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index f0260c699adb..2c185477eeb3 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -34,7 +34,6 @@ static const struct hid_blacklist {
        { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
        { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
        { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
-        { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH, HID_QUIRK_MULTI_INPUT },
        { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT },
        { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART, HID_QUIRK_MULTI_INPUT },
        { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
@@ -63,6 +62,7 @@ static const struct hid_blacklist {
        { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
+        { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
@@ -72,6 +72,10 @@ static const struct hid_blacklist {
        { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
        { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
        { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT },
        { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
        { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index dfcb27613ec5..fedd88df9a18 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -67,8 +67,6 @@ struct hiddev_list {
        struct mutex thread_lock;
 };
-static struct usb_driver hiddev_driver;
 /*
 * Find a report, given the report's type and ID.  The ID can be specified
 * indirectly by REPORT_ID_FIRST (which returns the first report of the given
@@ -926,41 +924,3 @@ void hiddev_disconnect(struct hid_device *hid)
                kfree(hiddev);
        }
 }
-/* Currently this driver is a USB driver.  It's not a conventional one in
- * the sense that it doesn't probe at the USB level.  Instead it waits to
- * be connected by HID through the hiddev_connect / hiddev_disconnect
- * routines.  The reason to register as a USB device is to gain part of the
- * minor number space from the USB major.
- *
- * In theory, should the HID code be generalized to more than one physical
- * medium (say, IEEE 1384), this driver will probably need to register its
- * own major number, and in doing so, no longer need to register with USB.
- * At that point the probe routine and hiddev_driver struct below will no
- * longer be useful.
- */
-/* We never attach in this manner, and rely on HID to connect us.  This
- * is why there is no disconnect routine defined in the usb_driver either.
- */
-static int hiddev_usbd_probe(struct usb_interface *intf,
-                             const struct usb_device_id *hiddev_info)
-{
-        return -ENODEV;
-}
-static /* const */ struct usb_driver hiddev_driver = {
-        .name =         "hiddev",
-        .probe =        hiddev_usbd_probe,
-};
-int __init hiddev_init(void)
-{
-        return usb_register(&hiddev_driver);
-}
-void hiddev_exit(void)
-{
-        usb_deregister(&hiddev_driver);
-}
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 42a0f1d11365..bb0f56f5c01e 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -316,6 +316,7 @@ struct hid_item {
 #define HID_QUIRK_FULLSPEED_INTERVAL            0x10000000
 #define HID_QUIRK_NO_INIT_REPORTS               0x20000000
 #define HID_QUIRK_NO_IGNORE                     0x40000000
+#define HID_QUIRK_NO_INPUT_SYNC                 0x80000000
 /*
 * This is the global environment of the parser. This information is
@@ -626,8 +627,8 @@ struct hid_driver {
        int (*event)(struct hid_device *hdev, struct hid_field *field,
                        struct hid_usage *usage, __s32 value);
-        void (*report_fixup)(struct hid_device *hdev, __u8 *buf,
+        __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
-                        unsigned int size);
+                        unsigned int *size);
        int (*input_mapping)(struct hid_device *hdev,
                        struct hid_input *hidinput, struct hid_field *field,
diff --git a/include/linux/hiddev.h b/include/linux/hiddev.h
index bb6f58baf319..a3f481a3063b 100644
--- a/include/linux/hiddev.h
+++ b/include/linux/hiddev.h
@@ -226,8 +226,6 @@ void hiddev_disconnect(struct hid_device *);
 void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
                      struct hid_usage *usage, __s32 value);
 void hiddev_report_event(struct hid_device *hid, struct hid_report *report);
-int __init hiddev_init(void);
-void hiddev_exit(void);
 #else
 static inline int hiddev_connect(struct hid_device *hid,
                unsigned int force)
@@ -236,8 +234,6 @@ static inline void hiddev_disconnect(struct hid_device *hid) { }
 static inline void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
                      struct hid_usage *usage, __s32 value) { }
 static inline void hiddev_report_event(struct hid_device *hid, struct hid_report *report) { }
-static inline int hiddev_init(void) { return 0; }
-static inline void hiddev_exit(void) { }
 #endif
 #endif