Add a driver for X-Box gamepads. While they have quite normal

data format, they cannot be handled by HID, because they lack
the descriptors and have completely nonstandard interface class.

Documentation/input/xpad.txt

+usb-xpad - Linux USB driver for XBOX HID gamecontrollers
+
+This is the very first release of a driver for XBOX gamecontrollers.
+Basically, this was hacked away in just a few hours, so don't expect
+miracles.
+
+0. Status
+---------
+
+For now, this driver has only been tested on just one Linux-Box.
+This one is running a 2.4.18 kernel with usb-uhci on an amd athlon 600.
+
+The jstest-program from joystick-1.2.15 (jstest-version 2.1.0) reports
+8 axes and 10 buttons.
+
+Alls 8 axes work, though they all have the same range (-32768..32767)
+and the zero-setting is not correct for the triggers.
+9 of the 10 buttons work (my black button does not work, though I can
+see no reason for it not to), all of them are in digital mode, though
+(the six buttons on the right side are "analog" ones).
+
+
+1. USB adapter
+--------------
+
+Before you can actually use the driver, you need to get yourself an
+adapter cable to connect the XBOX-controller to your Linux-Box.
+
+Such a cable is pretty easy to build. The Controller itself is a USB device
+(a hub with three ports; two expansion slots and the controller device)
+with the only differnce in a nonstandard connector (5 pins vs. 4 on
+standard USB connector).
+
+You just need to solder an USB connector onto the cable and keep the
+yellow wire unconnected. The other pins have the same order on both
+connectors so there no magic to it. Detailed info on these matters can be found
+on the net.
+
+Thanks to the trip splitter found on the cable you don't even need to cut the
+original cable, you can buy an extension cable and cut that instead. That way,
+you can still use the controller with your XBOX, if you have one ;)
+
+
+2. driver installation
+----------------------
+
+Once you have the adapter cable and the controller is connected, you need
+to load your USB subsystem and should cat /proc/bus/usb/devices.
+There should be an entry like the one in InterAct_german.dump.
+
+Don't worry if the vendor and/or product ID don't match, those are easy to
+add to the driver. You could do it yourself, just add the appropriate line
+into the list after the line
+    '} xpad_device[] = {'
+, but before the line that says
+    '{ 0x0000, 0x0000, "unknown...." }'.
+
+In theory, the driver should work with other controllers than mine
+(InterAct PowerPad pro, bought in Germany) just fine, but see for yourself.
+
+If you compiled and installed the driver, test the functionality:
+> modprobe usb-xpad
+> modprobe joydev
+> jstest /dev/input/js0
+
+There should be a single line showing 18 inputs (8 axes, 10 buttons), and
+it's values should change if you move the sticks and push the buttons.
+
+It works? Voila, your done ;)
+
+
+3. Thanks
+---------
+
+I have to thank ITO Takayuki for the detailed info on his site
+ http://euc.jp/periphs/xbox-controller.ja.html.
+ 
+His useful info and both the usb-skeleton as well as the iforce input driver
+helped a lot in rapid prototyping the basic functionality.
+
+
+-- 
+Marko Friedemann <mfr@bmx-chemnitz.de>
+2002-07-02

drivers/usb/input/Config.help

@@ -114,3 +114,17 @@ CONFIG_USB_POWERMATE
   inserted in and removed from the running kernel whenever you want).
   The module will be called powermate.o. If you want to compile it as a
   module, say M here and read <file:Documentation/modules.txt>.
+
+CONFIG_USB_XPAD
+  Say Y here if you want to use the X-Box pad with your computer.
+  Make sure to say Y to "Joystick support" (CONFIG_INPUT_JOYDEV)
+  and/or "Event interface support" (CONFIG_INPUT_EVDEV) as well.
+
+  For information about how to connect the X-Box pad to USB, see
+  Documentation/input/xpad.txt.
+
+  This driver is also available as a module ( = code which can be
+  inserted in and removed from the running kernel whenever you want).
+  The module will be called wacom.o.  If you want to compile it as a
+  module, say M here and read <file:Documentation/modules.txt>.
+

drivers/usb/input/Config.in

@@ -23,4 +23,4 @@ fi
 dep_tristate '  Aiptek 6000U/8000U tablet support' CONFIG_USB_AIPTEK $CONFIG_USB $CONFIG_INPUT
 dep_tristate '  Wacom Intuos/Graphire tablet support' CONFIG_USB_WACOM $CONFIG_USB $CONFIG_INPUT
 dep_tristate '  Griffin PowerMate and Contour Jog support' CONFIG_USB_POWERMATE $CONFIG_USB $CONFIG_INPUT
-
+dep_tristate '  X-Box gamepad support' CONFIG_USB_XPAD $CONFIG_USB $CONFIG_INPUT

drivers/usb/input/Makefile

@@ -32,5 +32,6 @@ obj-$(CONFIG_USB_KBD)		+= usbkbd.o
 obj-$(CONFIG_USB_MOUSE)		+= usbmouse.o
 obj-$(CONFIG_USB_WACOM)		+= wacom.o
 obj-$(CONFIG_USB_POWERMATE)	+= powermate.o
+obj-$(CONFIG_USB_XPAD)		+= xpad.o
 
 include $(TOPDIR)/Rules.make