Audio / Camera Driver - FriendlyARM Mini2440 - s3c2440

I am a newbie to embedded linux and am keen on learning to write device drivers. I have got a FriendlyARM Mini2440 board with me.

Please suggest which device driver would be easier to start learning - Audio or Camera or something else?

Need suggestions from experts开发者_JS百科.

Thanks a lot!

Between those 2, I would say that a camera driver would be simpler. Audio drivers in Linux are more complex than most other drivers, and there seems to not be very much documentation on writing them.

Have you read Linux Device Drivers by Jonathan Corbet, Alessandro Rubini, and Greg Kroah-Hartman? That is probably the best way to start.

I'd recommend starting with serial, flash, or ethernet drivers, in that order. Those are common, the code is straightforward, and there's good documentation and examples for them.