ladyada , hacker extraordinaire and sponsor of the Open Kinect bounty, has just posted an excellent article on reverse engineering USB devices. Using the Xbox Kinect motor and accelerometer as examples, she details every step of the process from identifying the device ID’s to building a driver and sending commands.
It’s written really well and makes a complex topic super accessible. It’s really an excellent read, and I’d recommend it even if you don’t have any USB devices you want to reverse (yet)!
Read “DIY Kinect Hacking” for step-by-step details!