Greetings, I am interested in using the gpio and i2c for a couple of upcomming projects. If I have a seperate device driver and I want to do some reads/writes on these busses, then can I use call the bttv driver to access the ports? Is the access granted from user space also? I see that device drivers can call other device drives ( such as v4l driver registration), so I should not be a problem. Has anybody done anything like this? What kinds of data rates can I expect on the gpio bus? Any gotchas? brett bolen
