I got Guitar Hero 2 for my 360 recently (Great game), and I plugged the controller into my computer's USB port. I was wondering, could it be used in GM like an joystick? If so, how?
Anyway, I'm totally GH2 addicted now. I got it 4 days ago, and I'm already on Hard mode. (Beat it on Easy and Medium, 5 starred all Medium songs.) I've also bought every song.
Try making a program that displays joystick inputs, that should tell you if it will work and what buttons are what.
Since your question was answered, I'm taking this off the front page due to lack of content.