Awesome Open Source
Awesome Open Source

Updated Xpad Linux Kernel Driver

Driver for the Xbox/ Xbox 360/ Xbox 360 Wireless/ Xbox One Controllers

This driver includes the latest changes in the upstream linux kernel and additionally carries the following staging changes:

  • enable debug outputs to ease resolving issues
  • some minor code refactoring improving readability

This driver does not support the XBox One Wireless Adapter (WiFi)
To get that running, see: medusalix/xow

Installing

sudo git clone https://github.com/paroj/xpad.git /usr/src/xpad-0.4
sudo dkms install -m xpad -v 0.4

Updating

cd /usr/src/xpad-0.4
sudo git fetch
sudo git checkout origin/master
sudo dkms remove -m xpad -v 0.4 --all
sudo dkms install -m xpad -v 0.4

Removing

sudo dkms remove -m xpad -v 0.4 --all
sudo rm -rf /usr/src/xpad-0.4

Usage

This driver creates three devices for each attached gamepad

  1. /dev/input/jsN
    • example jstest /dev/input/js0
  2. /sys/class/leds/xpadN/brightness
    • example echo COMMAND > /sys/class/leds/xpad0/brightness where COMMAND is one of
      • 0: off
      • 1: all blink, then previous setting
      • 2: 1/top-left blink, then on
      • 3: 2/top-right blink, then on
      • 4: 3/bottom-left blink, then on
      • 5: 4/bottom-right blink, then on
      • 6: 1/top-left on
      • 7: 2/top-right on
      • 8: 3/bottom-left on
      • 9: 4/bottom-right on
      • 10: rotate
      • 11: blink, based on previous setting
      • 12: slow blink, based on previous setting
      • 13: rotate with two lights
      • 14: persistent slow all blink
      • 15: blink once, then previous setting
  3. the generic event device
    • example fftest /dev/input/by-id/usb-*360*event*

Debugging

As a regular unpriveledged user

Setup console to display kernel log.
dmesg --level=debug --follow

Open a new console and access the device with jstest.
jstest /dev/input/jsX

Interact with the device and observe that data packets recieved from device are printed to kernel log.

[ 3968.772128] xpad-dbg: 00000000: 20 00 b5 0e 00 00 00 00 00 00 0c 03 04 fd 6c 01 40 fe 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3968.772135] xpad-dbg: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3968.804137] xpad-dbg: 00000000: 20 00 b6 0e 00 00 00 00 00 00 0c 03 04 fd 6c 01 fc fd 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3968.804145] xpad-dbg: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3969.152120] xpad-dbg: 00000000: 20 00 b7 0e 00 00 00 00 00 00 0c 03 04 fd 6c 01 b8 fd 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3969.152129] xpad-dbg: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Save dmesg buffer and attach to bug report, don't forget to describe button sequences in bug report.
dmesg --level=debug > dmesg.txt

Ctrl+C to close interactive console sessions when finished.

Sending Upstream

  1. git format-patch --cover-letter upstream..master
  2. git send-email --to xxx *.patch

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