xpad - Linux USB driver for X-Box gamepads ------------------------------------------ This driver is work in progress. Although it is already fairly functional, there are still quite a few things that are not implemented. See the ToDo-List in drivers/usb/input/xpad.c for details. 0. Status --------- For now, this driver has AFAIK 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 14 axes (6 of them are the analog buttons) and 10 buttons (the analog buttons are mapped as digital ones, too). Alls 14 axes work, though they all have the same range (-32768..32767) and the zero-setting is not correct for the triggers and the buttons (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. The six buttons on the right side (A, B, C [black], X, Y, Z [white]) are pressure-sensitive and report analog values as 8 bit unsigned. These are mapped to analog (ABS_HAT1X - ABS_HAT3Y) as well as digital inputs. 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. 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. 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 0.0.4), the following three devices are included: original Microsoft XBOX controller (US), vendor=0x045e, product=0x0202 original Microsoft XBOX controller (Japan), vendor=0x045e, product=0x0285 InterAct PowerPad Pro (Germany), vendor=0x05fd, product=0x107a If you have another controller that is not listed above and is not recognized by the driver, please drop me a line with the appropriate info (that is, include the name, vendor and product ID, as well as the country where you bought it; sending the whole dump out of /proc/bus/usb/devices along would be even better). In theory, the driver should work with other controllers than mine (InterAct PowerPad pro, bought in Germany) just fine, but I cannot test this for I only have this one controller. If you compiled and installed the driver, test the functionality: > modprobe xpad > modprobe joydev > jstest /dev/js0 There should be 24 inputs (14 axes, 10 buttons), and the 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 (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.xboxhackz.com/Hackz-Reference.htm 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 -- Marko Friedemann 2002-08-05