[alsa-devel] dev_* output functions and ASoC codecs

Mark Brown broonie at opensource.wolfsonmicro.com
Tue Oct 13 12:14:45 CEST 2009

On Tue, Oct 13, 2009 at 06:09:07PM +0800, Barry Song wrote:

> Another issue is that there is only one global soc_ac97_ops in the
> whole system. In case there are two different ac97 ports, how to
> handle?

> Even though the two ac97 ports are same, how could CPU DAI related
> private data can be given to snd_ac97 to let it use that data to
> execute different operations? It seems snd_ac97 is only attached to
> codec.

I've no current plan to work on multiple AC97 controllers support within
ASoC except in so far as it falls out of other work - I've never
encountered an embedded system with multiple AC97 controllers so it's a
somewhat academic issue.  Patches welcome, though I'd expect it'd be
sensible to wait until multi-card support is present.

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