* Userspace driver for the G13
** Installation
Make sure you have boost and libusb-1.0 installed.

Compile by running

> make

If you want to run the daemon as user, put the file 91-g13.rules into /etc/udev/rules.d/ (or whatever directory your distribution uses).

** Running
Connect your device, then run ./g13, it should automatically find your device.

If you see output like

Known keys on G13:
BD DOWN G1 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G2 G20 G21 G22 G3 G4 G5 G6 G7 G8 G9 L1 L2 L3 L4 LEFT LIGHT LIGHT_STATE M1 M2 M3 MR TOP STICK_LEFT STICK_RIGHT STICK_UP STICK_DOWN 
Known keys to map to:
KEY_0 KEY_1 KEY_2 KEY_3 KEY_4 KEY_5 KEY_6 KEY_7 KEY_8 KEY_9 KEY_A KEY_APOSTROPHE KEY_B KEY_BACKSLASH KEY_BACKSPACE KEY_C KEY_CAPSLOCK KEY_COMMA KEY_D KEY_DOT KEY_DOWN KEY_E KEY_ENTER KEY_EQUAL KEY_ESC KEY_F KEY_F1 KEY_F10 KEY_F2 KEY_F3 KEY_F4 KEY_F5 KEY_F6 KEY_F7 KEY_F8 KEY_F9 KEY_G KEY_GRAVE KEY_H KEY_I KEY_J KEY_K KEY_KP0 KEY_KP1 KEY_KP2 KEY_KP3 KEY_KP4 KEY_KP5 KEY_KP6 KEY_KP7 KEY_KP8 KEY_KP9 KEY_KPASTERISK KEY_KPDOT KEY_KPMINUS KEY_KPPLUS KEY_L KEY_LEFT KEY_LEFTALT KEY_LEFTBRACE KEY_LEFTCTRL KEY_LEFTSHIFT KEY_M KEY_MINUS KEY_N KEY_NUMLOCK KEY_O KEY_P KEY_Q KEY_R KEY_RIGHT KEY_RIGHTBRACE KEY_RIGHTSHIFT KEY_S KEY_SCROLLLOCK KEY_SEMICOLON KEY_SLASH KEY_SPACE KEY_T KEY_TAB KEY_U KEY_UP KEY_V KEY_W KEY_X KEY_Y KEY_Z 
Found 1 G13s

that is good. This also shows you which name the keys on the G13 have, and what keys you can bind them to.

** Commands

The daemon creates a pipe at /tmp/g13-0, you can send commands via that pipe (e.g. by running "echo rgb 0 255 0 > /tmp/g13-0")

*** rgb <r> <g> <b>

Sets the background color

*** mod <n>

Sets the background light of the mod-keys. <n> is the sum of 1 (M1), 2 (M2), 4 (M3) and 8 (MR) (i.e. 13 
would set M1, M3 and MR, and unset M2).

*** bind <keyname> <binding>

This binds a key. The possible values of <keyname> are shown upon startup (e.g. G1), same for <binding> (e.g. KEY_LEFTSHIFT).

*** jsmode <mode>

The stick can be used as an absolute input device or can send key events. Valid modes are: STICK_KEYS and STICK_ABSOLUTE.

You can bind the stick keys by binding the keynames STICK_LEFT, STICK_RIGHT, STICK_UP and STICK_DOWN.

*** LED display

Use pbm2lpbm to convert a pbm image to the correct format, then just cat that into the pipe (cat starcraft2.lpbm > /tmp/g13-0).
The pbm file must be 160x43 pixels.