[Trisquel-users] HTPC Controlled By Gamepad - Home/Launcher Button

[virx61]

I'm trying to create a game console-like environment with a PC and free  
software. On a side note, I wonder how many other people are interested in  
this sort of thing, especially considering the beautiful small HTPC models  
available at ThinkPenguin.

I've managed to get my computer paired with a bluetooth game controller at  
boot, and the controller works perfectly with games like rRootage,  
SuperTuxKart, and FreeDink; as well as XBMC, which is essential.

Everything is ready to go except one thing: I need a way to launch XBMC from  
the controller. I don't want it to start without the controller (I use my PC  
for regular stuff when I'm not gaming on it). I've decided I want to launch a  
process from .xsessionrc that watches for BTN_MODE to be sent from the  
controller indicating I've pressed the guide button, which will then launch  
XBMC or do whatever else I want. However I don't know how to do this. I think  
I need to watch /dev/input/event or uinput.

This guide does something similar, watching for events from LIRC  
http://forum.xbmc.org/showthread.php?tid=129256 . How can I look for events  
from the controller? xboxdrv says events are sent to event10 or js0.