On Tue, May 07, 2002 at 01:30:10PM -0000, Anandhi Dhanabalan wrote: > I am a new to Audio driver development. I am currently developing > a driver for Crystal Audio codec CS4205.
You'll never use the CS4205 directly -- it is just an AC97 codec.
You'll also need an AC97 controller, such as the one in the
ICHx/southbridge chip in most modern chipsets.
That controller handles all of the details of serializing data and
whatnot. You need to set up the controller to pass data in the right
slots, and set up the codec's mixer and whatnot.
The CS4205 is specifically supported by the ac97_codec driver in
alsa0.9.0rc1, and more generically supported by earlier versions. You
may want to look at the intel8x0 driver code as well, as that is little
more than a thin hardware wrapper around the ac97 codec.
- Pizza
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