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+xpad - Linux USB driver for X-Box gamepads
+
+This is the very first release of a driver for X-Box gamepads.
+Basically, this was hacked away in just a few hours, so don't expect
+miracles.
+
+In particular, there is currently NO support for the rumble pack.
+You won't find many ff-aware linux applications anyway.
+
+
+0. Notes
+--------
+
+Driver updated for kernel 2.6.17.11. (Based on a patch for 2.6.11.4.)
+
+The number of buttons/axes reported varies based on 3 things:
+- if you are using a known controller
+- if you are using a known dance pad
+- if using an unknown device (one not listed below), what you set in the
+ module configuration for "Map D-PAD to buttons rather than axes for unknown
+ pads" (module option dpad_to_buttons)
+
+If you set dpad_to_buttons to 0 and you are using an unknown device (one
+not listed below), the driver will map the directional pad to axes (X/Y),
+if you said N it will map the d-pad to buttons, which is needed for dance
+style games to function correctly. The default is Y.
+
+dpad_to_buttons has no effect for known pads.
+
+0.1 Normal Controllers
+----------------------
+With a normal controller, the directional pad is mapped to its own X/Y axes.
+The jstest-program from joystick-1.2.15 (jstest-version 2.1.0) will report 8
+axes and 10 buttons.
+
+All 8 axes work, though they all have the same range (-32768..32767)
+and the zero-setting is not correct for the triggers (I don't know if that
+is some limitation of jstest, since the input device setup should be fine. I
+didn't have a look at jstest itself yet).
+
+All of the 10 buttons work (in digital mode). The six buttons on the
+right side (A, B, X, Y, black, white) are said to be "analog" and
+report their values as 8 bit unsigned, not sure what this is good for.
+
+I tested the controller with quake3, and configuration and
+in game functionality were OK. However, I find it rather difficult to
+play first person shooters with a pad. Your mileage may vary.
+
+
+0.2 Xbox Dance Pads
+-------------------
+When using a known dance pad, jstest will report 6 axes and 14 buttons.
+
+For dance style pads (like the redoctane pad) several changes
+have been made. The old driver would map the d-pad to axes, resulting
+in the driver being unable to report when the user was pressing both
+left+right or up+down, making DDR style games unplayable.
+
+Known dance pads automatically map the d-pad to buttons and will work
+correctly out of the box.
+
+If your dance pad is recognized by the driver but is using axes instead
+of buttons, see section 0.3 - Unknown Controllers
+
+I've tested this with Stepmania, and it works quite well.
+
+
+0.3 Unknown Controllers
+----------------------
+If you have an unknown xbox controller, it should work just fine with
+the default settings.
+
+HOWEVER if you have an unknown dance pad not listed below, it will not
+work UNLESS you set "dpad_to_buttons" to 1 in the module configuration.
+
+PLEASE, if you have an unknown controller, email Dom <binary1230@yahoo.com> with
+a dump from /proc/bus/usb and a description of the pad (manufacturer, country,
+whether it is a dance pad or normal controller) so that we can add your pad
+to the list of supported devices, ensuring that it will work out of the
+box in the future.
+
+
+1. USB adapter
+--------------
+
+Before you can actually use the driver, you need to get yourself an
+adapter cable to connect the X-Box controller to your Linux-Box. You
+can buy these online fairly cheap, or build your own.
+
+Such a cable is pretty easy to build. The Controller itself is a USB
+compound device (a hub with three ports for two expansion slots and
+the controller device) with the only difference in a nonstandard connector
+(5 pins vs. 4 on standard USB connector).
+
+You just need to solder a USB connector onto the cable and keep the
+yellow wire unconnected. The other pins have the same order on both
+connectors so there is no magic to it. Detailed info on these matters
+can be found on the net ([1], [2], [3]).
+
+Thanks to the trip splitter found on the cable you don't even need to cut the
+original one. You can buy an extension cable and cut that instead. That way,
+you can still use the controller with your X-Box, 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 at the end [4].
+
+Currently (as of version 0.0.6), the following devices are included:
+ original Microsoft XBOX controller (US), vendor=0x045e, product=0x0202
+ smaller Microsoft XBOX controller (US), vendor=0x045e, product=0x0289
+ original Microsoft XBOX controller (Japan), vendor=0x045e, product=0x0285
+ InterAct PowerPad Pro (Germany), vendor=0x05fd, product=0x107a
+ RedOctane Xbox Dance Pad (US), vendor=0x0c12, product=0x8809
+
+The driver should work with xbox pads not listed above as well, however
+you will need to do something extra for dance pads to work.
+
+If you have a controller not listed above, see 0.3 - Unknown Controllers
+
+If you compiled and installed the driver, test the functionality:
+> modprobe xpad
+> modprobe joydev
+> jstest /dev/js0
+
+If you're using a normal controller, there should be a single line showing
+18 inputs (8 axes, 10 buttons), and its values should change if you move
+the sticks and push the buttons. If you're using a dance pad, it should
+show 20 inputs (6 axes, 14 buttons).
+
+It works? Voila, you're 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
+(Greg Kroah-Hartmann; Vojtech Pavlik) helped a lot in rapid prototyping
+the basic functionality.
+
+
+4. References
+-------------
+
+1. http://euc.jp/periphs/xbox-controller.ja.html (ITO Takayuki)
+2. http://xpad.xbox-scene.com/
+3. http://www.markosweb.com/www/xboxhackz.com/
+
+4. /proc/bus/usb/devices - dump from InterAct PowerPad Pro (Germany):
+
+T: Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0
+D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=32 #Cfgs= 1
+P: Vendor=05fd ProdID=107a Rev= 1.00
+C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
+I: If#= 0 Alt= 0 #EPs= 2 Cls=58(unk. ) Sub=42 Prot=00 Driver=(none)
+E: Ad=81(I) Atr=03(Int.) MxPS= 32 Ivl= 10ms
+E: Ad=02(O) Atr=03(Int.) MxPS= 32 Ivl= 10ms
+
+5. /proc/bus/usb/devices - dump from Redoctane Xbox Dance Pad (US):
+
+T: Bus=01 Lev=02 Prnt=09 Port=00 Cnt=01 Dev#= 10 Spd=12 MxCh= 0
+D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
+P: Vendor=0c12 ProdID=8809 Rev= 0.01
+S: Product=XBOX DDR
+C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
+I: If#= 0 Alt= 0 #EPs= 2 Cls=58(unk. ) Sub=42 Prot=00 Driver=xpad
+E: Ad=82(I) Atr=03(Int.) MxPS= 32 Ivl=4ms
+E: Ad=02(O) Atr=03(Int.) MxPS= 32 Ivl=4ms
+
+--
+Marko Friedemann <mfr@bmx-chemnitz.de>
+2002-07-16
+ - original doc
+
+Dominic Cerquetti <binary1230@yahoo.com>
+2005-03-19
+ - added stuff for dance pads, new d-pad->axes mappings