[alsa-devel] About audio driver architecture

[Mark Brown]

On Tue, Jan 19, 2010 at 03:26:06PM +0800, Michael Qiu wrote:

> 1. Seems the "ALSA Driver Documentation" is mainly for PCI(and for PC)
> based audio card. Where can I got a document for SOC which has no PCI
> bus. If there are some existing drivers it will be even better.

If this is for an embedded system (sounds like it when you're talking
about SoCs) then there's an entire subsystem for it under sound/soc with
some documentation under Documentation/sound/soc

> 2. Is there any standard for such a audio driver which upper
> applications will depend on it? Or I can just follow ALSA?

Use ALSA.