Places to start...?

[Chandler May]

Hi all,

I've been working with Unix for a couple of years (mostly BSD), and
I'm fairly competent in C, so I think I'd like to try my luck at
device drivers. I have an HP L2000 notebook, and I'm interested in
writing a driver for the sound card (all I know at the moment is that
it has a Conexant AC'97 codec). Would you be kind enough to share a
few links and/or pearls of wisdom to get me started?

Chandler May