2 files changed, 92 insertions, 5 deletions

diff --git a/Documentation/input/appletouch.txt b/Documentation/input/appletouch.txt
new file mode 100644
index 000000000000..b48d11d0326d
--- /dev/null
+++ b/Documentation/input/appletouch.txt
@@ -0,0 +1,84 @@
+Apple Touchpad Driver (appletouch)
+----------------------------------
+        Copyright (C) 2005 Stelian Pop <stelian@popies.net>
+
+appletouch is a Linux kernel driver for the USB touchpad found on post
+February 2005 Apple Alu Powerbooks.
+
+This driver is derived from Johannes Berg's appletrackpad driver[1], but it has
+been improved in some areas:
+        * appletouch is a full kernel driver, no userspace program is necessary
+        * appletouch can be interfaced with the synaptics X11 driver, in order
+          to have touchpad acceleration, scrolling, etc.
+
+Credits go to Johannes Berg for reverse-engineering the touchpad protocol,
+Frank Arnold for further improvements, and Alex Harper for some additional
+information about the inner workings of the touchpad sensors.
+
+Usage:
+------
+
+In order to use the touchpad in the basic mode, compile the driver and load
+the module. A new input device will be detected and you will be able to read
+the mouse data from /dev/input/mice (using gpm, or X11).
+
+In X11, you can configure the touchpad to use the synaptics X11 driver, which
+will give additional functionalities, like acceleration, scrolling, 2 finger
+tap for middle button mouse emulation, 3 finger tap for right button mouse
+emulation, etc. In order to do this, make sure you're using a recent version of
+the synaptics driver (tested with 0.14.2, available from [2]), and configure a
+new input device in your X11 configuration file (take a look below for an
+example). For additional configuration, see the synaptics driver documentation.
+
+        Section "InputDevice"
+                Identifier      "Synaptics Touchpad"
+                Driver          "synaptics"
+                Option          "SendCoreEvents"        "true"
+                Option          "Device"                "/dev/input/mice"
+                Option          "Protocol"              "auto-dev"
+                Option          "LeftEdge"              "0"
+                Option          "RightEdge"             "850"
+                Option          "TopEdge"               "0"
+                Option          "BottomEdge"            "645"
+                Option          "MinSpeed"              "0.4"
+                Option          "MaxSpeed"              "1"
+                Option          "AccelFactor"           "0.02"
+                Option          "FingerLow"             "0"
+                Option          "FingerHigh"            "30"
+                Option          "MaxTapMove"            "20"
+                Option          "MaxTapTime"            "100"
+                Option          "HorizScrollDelta"      "0"
+                Option          "VertScrollDelta"       "30"
+                Option          "SHMConfig"             "on"
+        EndSection
+
+        Section "ServerLayout"
+                ...
+                InputDevice     "Mouse"
+                InputDevice     "Synaptics Touchpad"
+        ...
+        EndSection
+
+Fuzz problems:
+--------------
+
+The touchpad sensors are very sensitive to heat, and will generate a lot of
+noise when the temperature changes. This is especially true when you power-on
+the laptop for the first time.
+
+The appletouch driver tries to handle this noise and auto adapt itself, but it
+is not perfect. If finger movements are not recognized anymore, try reloading
+the driver.
+
+You can activate debugging using the 'debug' module parameter. A value of 0
+deactivates any debugging, 1 activates tracing of invalid samples, 2 activates
+full tracing (each sample is being traced):
+        modprobe appletouch debug=1
+                or
+        echo "1" > /sys/module/appletouch/parameters/debug
+
+Links:
+------
+
+[1]: http://johannes.sipsolutions.net/PowerBook/touchpad/
+[2]: http://web.telia.com/~u89404340/touchpad/index.html
diff --git a/Documentation/usb/proc_usb_info.txt b/Documentation/usb/proc_usb_info.txt
index 729c72d34c89..f86550fe38ee 100644
--- a/Documentation/usb/proc_usb_info.txt
+++ b/Documentation/usb/proc_usb_info.txt
@@ -20,7 +20,7 @@ the /proc/bus/usb/BBB/DDD files.
 
           to /etc/fstab.  This will mount usbfs at each reboot.
           You can then issue `cat /proc/bus/usb/devices` to extract
-          USB device information, and user mode drivers can use usbfs 
+          USB device information, and user mode drivers can use usbfs
           to interact with USB devices.
 
           There are a number of mount options supported by usbfs.
@@ -32,7 +32,7 @@ the /proc/bus/usb/BBB/DDD files.
           still see references to the older "usbdevfs" name.
 
 For more information on mounting the usbfs file system, see the
-"USB Device Filesystem" section of the USB Guide. The latest copy 
+"USB Device Filesystem" section of the USB Guide. The latest copy
 of the USB Guide can be found at http://www.linux-usb.org/
 
 
@@ -133,7 +133,7 @@ B:  Alloc=ddd/ddd us (xx%), #Int=ddd, #Iso=ddd
     are the only transfers that reserve bandwidth.  Control and bulk
     transfers use all other bandwidth, including reserved bandwidth that
     is not used for transfers (such as for short packets).
-    
+
     The percentage is how much of the "reserved" bandwidth is scheduled by
     those transfers.  For a low or full speed bus (loosely, "USB 1.1"),
     90% of the bus bandwidth is reserved.  For a high speed bus (loosely,
@@ -197,7 +197,7 @@ C:* #Ifs=dd Cfg#=dd Atr=xx MPwr=dddmA
 | | |__NumberOfInterfaces
 | |__ "*" indicates the active configuration (others are " ")
 |__Config info tag
-    
+
     USB devices may have multiple configurations, each of which act
     rather differently.  For example, a bus-powered configuration
     might be much less capable than one that is self-powered.  Only
@@ -228,7 +228,7 @@ I:  If#=dd Alt=dd #EPs=dd Cls=xx(sssss) Sub=xx Prot=xx Driver=ssss
     For example, default settings may not use more than a small
     amount of periodic bandwidth.  To use significant fractions
     of bus bandwidth, drivers must select a non-default altsetting.
-    
+
     Only one setting for an interface may be active at a time, and
     only one driver may bind to an interface at a time.  Most devices
     have only one alternate setting per interface.
@@ -297,18 +297,21 @@ S:  SerialNumber=dce0
 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
 I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
 E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
+
 T:  Bus=00 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 4
 D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
 P:  Vendor=0451 ProdID=1446 Rev= 1.00
 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
 I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
 E:  Ad=81(I) Atr=03(Int.) MxPS=   1 Ivl=255ms
+
 T:  Bus=00 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#=  3 Spd=1.5 MxCh= 0
 D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
 P:  Vendor=04b4 ProdID=0001 Rev= 0.00
 C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
 I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=mouse
 E:  Ad=81(I) Atr=03(Int.) MxPS=   3 Ivl= 10ms
+
 T:  Bus=00 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#=  4 Spd=12  MxCh= 0
 D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
 P:  Vendor=0565 ProdID=0001 Rev= 1.08