| Commit message (Collapse) | Author | Age |
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When the uhid_hid_parse callback is called we simply forward it to
hid_parse_report() with the data that we got in the UHID_CREATE event.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This adds a new event type UHID_INPUT which allows user-space to feed raw
HID reports into the HID subsystem. We copy the data into kernel memory
and directly feed it into the HID core.
There is no error handling of the events couldn't be parsed so user-space
should consider all events successfull unless read() returns an error.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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UHID_CREATE and UHID_DESTROY are used to create and destroy a device on an
open uhid char-device. Internally, we allocate and register an HID device
with the HID core and immediately start the device. From now on events may
be received or sent to the device.
The UHID_CREATE event has a payload similar to the data used by
Bluetooth-HIDP when creating a new connection.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Similar to read() you can only write() a single event with one call to an
uhid device. To write multiple events use writev() which is supported by
uhid.
We currently always return -EOPNOTSUPP but other events will be added in
later patches.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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User-space can use read() to get a single event from uhid devices. read()
does never return multiple events. This allows us to extend the event
structure and still keep backwards compatibility.
If user-space wants to get multiple events in one syscall, they should use
the readv()/writev() syscalls which are supported by uhid.
This introduces a new lock which helps us synchronizing simultaneous reads
from user-space. We also correctly return -EINVAL/-EFAULT only on errors
and retry the read() when some other thread captured the event faster than
we did.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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As long as the internal buffer is not empty, we return POLLIN to
user-space.
uhid->head and uhid->tail are no atomics so the comparison may return
inexact results. However, this doesn't matter here as user-space would
need to poll() in two threads simultaneously to trigger this. And in this
case it doesn't matter if a cached result is returned or the exact new
result as user-space does not know which thread returns first from poll()
and the following read(). So it is safe to compare the values without
locking.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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When receiving messages from the HID subsystem, we need to process them
and store them in an internal buffer so user-space can read() on the char
device to retrieve the messages.
This adds a static buffer for 32 messages to each uhid device. Each
message is dynamically allocated so the uhid_device structure does not get
too big.
uhid_queue() adds a message to the buffer. If the buffer is full, the
message is discarded. uhid_queue_event() is an helper for messages without
payload.
This also adds a public header: uhid.h. It contains the declarations for
the user-space API. It is built around "struct uhid_event" which contains
a type field which specifies the event type and each event can then add a
variable-length payload. For now, there is only a dummy event but later
patches will add new event types and payloads.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This adds a dummy driver that will support user-space I/O drivers for the
HID subsystem. This allows to write transport-level drivers like USB-HID
and Bluetooth-HID in user-space.
Low-Energy Bluetooth needs this to feed HID data that is parsed in
user-space back into the kernel.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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'suspend-fixes' and 'upstream' into for-linus
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Add Asus All-In-One PC keyboard model AK1D.
BugLink: https://bugs.launchpad.net/bugs/1027789
Signed-off-by: Cyrus Lien <cyrus.lien@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add yet another device to the list of Cypress barcode scanners
needing the CP_RDESC_SWAPPED_MIN_MAX quirk.
Signed-off-by: Lionel Vaux (iouri) <lionel.vaux@free.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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hid-picolcd and hid-wiimote do not allow any of hidinput, hiddev or hidraw
to claim the device but still want to remain on the bus. Hence, if a
driver uses the raw_event callback but no other listener claimed the
device, we still leave it on the bus as the driver handles everything by
itself. It thus becomes its own listener.
Under some circumstances (eg., hidinput_connect() fails and raw_event set)
a device may be left on the bus even though it requires external
listeners. But then if hidinput_connect() fails there are bigger issues
than a device that is left unhandled. So we can safely use this heuristic
to avoid adding another flag for special devices like hid-picolcd and
hid-wiimote.
This also removes the ugly hack from hid-picolcd as this is no longer
required.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Corrects two HID descriptor issues, which prevent some Holtek based
(USB ID 04d9:a055) keyboards from working. The error when not using
the driver is: generic-usb: probe ... failed with error -22 .
Signed-off-by: Tom Harwood <tomharwood@fastmail.fm>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The keys are found on the keyboards bundled with HP All-In-One machines
with USB VID/PID of 04ca:004d and 04f2:1061.
Signed-off-by: Keng-Yu Lin <kengyu@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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commit 'HID: Driver for Lenovo Keyboard with Trackpoint'
(c1dcad2d32d0252e8a3023d20311b52a187ecda3) introduced a compiling error due to
unmetting dependency of CONFIG_LEDS_CLASS.
on i386:
ERROR: "led_brightness_set" [drivers/leds/led-class.ko] undefined!
ERROR: "leds_list" [drivers/leds/led-class.ko] undefined!
ERROR: "leds_list_lock" [drivers/leds/led-class.ko] undefined!
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This driver for the "Lenovo ThinkPad USB Keyboard with Trackpoint" supports
setting various device attributes, controlling mute and microphone mute
LEDs and enables use of the microphone mute key.
Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch (as1597) fixes some of the error paths in usbhid's suspend
routine. The driver was not careful to restart everything that might
have been stopped, in cases where a suspend failed.
For example, once the HID_SUSPENDED flag is set, an output report
submission would not restart the corresponding URB queue. If a
suspend fails, it's therefore necessary to check whether the queues
need to be restarted.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch (as1596) improves the queue-restart logic in usbhid by
checking to see if the device is suspended or a reset is about to
occur. There's no point submitting an URB if either of those is
true.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch (as1595) improves the usbhid driver by using the
HID_SUSPENDED bitflag to indicate that the device is suspended rather
than using HID_REPORTED_IDLE, which the patch removes.
Since HID_SUSPENDED was not being used for anything, and since the
name "HID_REPORTED_IDLE" doesn't convey much meaning, the end result
is easier to read and understand.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch (as1594) simplifies the usbhid driver by inlining a couple
of routines. As a result of an earlier patch, irq_out_pump_restart()
and ctrl_pump_restart() are each used in only one place. Since they
don't really do what their names say, and since they each involve only
about two lines of actual code, there's no reason to keep them as
separate functions.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch (as1593) fixes some logic errors in the usbhid driver
relating to runtime PM. The driver does not balance its calls to
usb_autopm_get_interface_async() and usb_autopm_put_interface_async().
For example, when the control queue is restarted the driver does a
_get. But the resume won't happen immediately, so the driver leaves
the queue stopped. When the resume does occur, the queue is restarted
and a second _get occurs, with no balancing _put.
The patch fixes the problem by rearranging the logic for restarting
the queues. All the _get/_put calls and bitflag settings in
__usbhid_submit_report() are moved into the queue-restart routines. A
balancing _put call is added for the case where the queue is still
suspended. A call to irq_out_pump_restart(), which doesn't take all
the right actions for restarting the irq-OUT queue, is replaced by a
call to usbhid_restart_out_queue(), which does. Similarly for
ctrl_pump_restart().
Finally, new code is added to prevent an autosuspend from happening
every time an URB is cancelled, and the comments explaining what
happens when an URB needs to be cancelled are expanded and clarified.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch (as1592) fixes an obscure problem in the usbhid driver.
Under some circumstances, a control or interrupt-OUT URB can be
submitted twice. This will happen if the first submission fails; the
queue pointers aren't updated, so the next time the queue is restarted
the same URB will be submitted again.
The problem is that raw_report gets deallocated during the first
submission. The second submission will then dereference and try to
free an already-freed region of memory. The patch fixes the problem
by setting raw_report to NULL when it is deallocated and checking for
NULL before dereferencing it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The sensor attr can be used to tweak the optical sensor of the Savu.
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Did this to illustrate my understanding of the firmware generations:
Valo and Kone were 1st generation
Arvo was externaly developed and lies in the middle
All others until now are considered 2nd generation
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Reduced code duplication by moving functions from individual drivers
to roccat-common module.
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch adds rupport for Roccat Savu gaming mouse.
In comparison to the other Roccat modules I tried to move even more
functionality to userland.
Userland tools can soon be found at http://sourceforge.net/projects/roccat
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Zytronic panels shows a new way of setting the Input Mode feature.
This feature is put in the second usage in the HID feature, instead
of the first, as the majority of the multitouch devices.
This patch adds a detection step when the feature is presented to know
where the feature is located in the report. We can then trigger the right
command to the device. This removes the magic number "0" in the function
mt_set_input_mode.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Since Henrik's autoloading changes, the proper macro for device
entry is MT_USB_DEVICE().
Reported-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support for a Novatek touchscreen panel as a generic HID multitouch
panel.
Signed-off-by: Austin Hendrix <ahendrix@willowgarage.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The driver for Apple Magic Trackpad/Mouse currently uses
Multi-touch Protocol A (MT-A) to report touch events and uses
ABS_MT_TRACKING_ID to do finger tracking. The fact of the device
being able to track individual finger makes it possible to
report touch events using MT-B. This patch converts the driver
to use MT-B as it is preferred to MT-A.
V4: Removed BTN_TOUCH evnet.
V3: Removed the single touch related logic.
V2: Converting entirely to MT-B as Henrik Rydberg suggested.
Signed-off-by: Yufeng Shen <miletus@chromium.org>
Reviewed-and-tested-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Remove the report_touches switch as it is not so useful to turn
off reporting touch events for a touch device. Let the userspace
to do the filtering if the turning off is needed.
V2: Remove report_touches as suggeted by Chase Douglas
Signed-off-by: Yufeng Shen <miletus@chromium.org>
Reviewed-and-tested-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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When using hidraw, hid buffer can be big and take lot's of
time to process (interrupt) kernel context.
Don't try to parse report if we are only interrested in hidraw.
Also don't prepare data for debug stuff if no debugfs file
are opened.
Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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If we don't read fast enough hidraw device, hidraw_report_event
will cycle and we will leak list->buffer.
Also list->buffer are not free on release.
After this patch, kmemleak report nothing.
Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID update from Jiri Kosina:
"A final round of changes for HID for 3.5: just device ID additions."
* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: hid-multitouch: add support for Zytronic panels
HID: add Sennheiser BTD500USB device support
HID: add battery quirk for Apple Wireless ANSI
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Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The Sennheiser BTD500USB composit device requires the
HID_QUIRK_NOGET flag to be set for working proper. Without the
flag the device crashes during hid intialization.
Signed-off-by: Frank Kunz <xxxxxmichl@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI, to the quirk list since it report
wrong feature type and wrong percentage range.
Signed-off-by: Daniel Nicoletti <dantti12@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"The changes are limited to adding new VID/PID combinations to drivers
to enable support for new versions of hardware, most notably hardware
found in new MacBook Pro Retina boxes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add Andamiro Pump It Up pad
Input: xpad - add signature for Razer Onza Tournament Edition
Input: xpad - handle all variations of Mad Catz Beat Pad
Input: bcm5974 - Add support for 2012 MacBook Pro Retina
HID: add support for 2012 MacBook Pro Retina
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The device should be handled by xpad driver instead of generic HID driver.
Signed-off-by: Yuri Khan <yurivkhan@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add support for the 15'' MacBook Pro Retina. The keyboard is
the same as recent models.
The patch needs to be synchronized with the bcm5974 patch for
the trackpad - as usual.
Patch originally written by clipcarl (forums.opensuse.org).
[rydberg@euromail.se: Amended mouse ignore lines]
Signed-off-by: Ryan Bourgeois <bluedragonx@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
"The most important one is a purification of Kconfig for CONFIG_HID;
the inclusion of HID groups and autoloading didn't leave the Kconfig
in a really consistent state. Henrik's patch fixes that. In addition
to that, there are two small fixes for logitech and magicmouse
drivers."
* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: Fix the generic Kconfig options
HID: magicmouse: Correct report range of major / minor axes
HID: logitech: don't use stack based dj_report structures
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The generic HID driver is obviously not a special driver, so move it
outside of the special drivers menu. Explain the usage and make the
default follow the HID setting. This should simplify migration from
older kernels. While at it, remove the redundant HID_SUPPORT option
and modify the HID and USB_HID entries to better explain the bus
structure.
Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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In patch "HID: magicmouse: Adjust major / minor axes to scale",
touch_major and touch_minor axes are scaled by a factor of
four when reported but the max touch_major/minor is not scaled
accordingly. This patch scales the max touch_major/minor to
be consistent with the reported value.
Signed-off-by: Yufeng Shen <miletus@chromium.org>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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On a system with a logitech wireless keyboard/mouse and DMA-API debugging
enabled, this warning appears at boot:
kernel: WARNING: at lib/dma-debug.c:929 check_for_stack.part.12+0x70/0xa7()
kernel: Hardware name: MS-7593
kernel: uhci_hcd 0000:00:1d.1: DMA-API: device driver maps memory fromstack [addr=ffff8801b0079c29]
Make logi_dj_recv_query_paired_devices and logi_dj_recv_switch_to_dj_mode
use a structure allocated with kzalloc rather than a stack based one.
Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab.
Trivial conflict due to new USB HID ID's being added next to each other
(Baanto vs Axentia).
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (44 commits)
[media] smia: Fix compile failures
[media] Fix VIDIOC_DQEVENT docbook entry
[media] s5p-fimc: Fix control creation function
[media] s5p-mfc: Fix checkpatch error in s5p_mfc_shm.h file
[media] s5p-mfc: Fix setting controls
[media] v4l/s5p-mfc: added image size align in VIDIOC_TRY_FMT
[media] v4l/s5p-mfc: corrected encoder v4l control definitions
[media] v4l: mem2mem_testdev: Fix race conditions in driver
[media] s5p-mfc: Bug fix of timestamp/timecode copy mechanism
[media] cxd2820r: Fix an incorrect modulation type bitmask
[media] em28xx: Show a warning if the board does not support remote controls
[media] em28xx: Add remote control support for Terratec's Cinergy HTC Stick HD
[media] USB: Staging: media: lirc: initialize spinlocks before usage
[media] Revert "[media] media: mx2_camera: Fix mbus format handling"
[media] bw-qcam: driver and pixfmt documentation fixes
[media] cx88: fix firmware load on big-endian systems
[media] cx18: support big-endian systems
[media] ivtv: fix support for big-endian systems
[media] tuner-core: return the frequency range of the correct tuner
[media] v4l2-dev.c: fix g_parm regression in determine_valid_ioctls()
...
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina:
"As usual, it's mostly typo fixes, redundant code elimination and some
documentation updates."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)
edac, mips: don't change code that has been removed in edac/mips tree
xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer
lib: Change mail address of Oskar Schirmer
net: Change mail address of Oskar Schirmer
arm/m68k: Change mail address of Sebastian Hess
i2c: Change mail address of Oskar Schirmer
net: Fix tcp_build_and_update_options comment in struct tcp_sock
atomic64_32.h: fix parameter naming mismatch
Kconfig: replace "--- help ---" with "---help---"
c2port: fix bogus Kconfig "default no"
edac: Fix spelling errors.
qla1280: Remove redundant NULL check before release_firmware() call
remoteproc: remove redundant NULL check before release_firmware()
qla2xxx: Remove redundant NULL check before release_firmware() call.
aic94xx: Get rid of redundant NULL check before release_firmware() call
tehuti: delete redundant NULL check before release_firmware()
qlogic: get rid of a redundant test for NULL before call to release_firmware()
bna: remove redundant NULL test before release_firmware()
tg3: remove redundant NULL test before release_firmware() call
typhoon: get rid of redundant conditional before all to release_firmware()
...
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