[alsa-devel] I don't understand snd_pcm_ops
timur at freescale.com
Tue May 22 18:17:08 CEST 2007
Ash Willis wrote:
> Have you read "Writing an ALSA driver"? It generally describes ALSA drivers as
> they relate to PCI, and how to write them, but it does a good job at explaining
> the general ALSA driver architecture.
Unfortunately, most of my confusion stems from ASoC-specific issues. For instance, that
document says I should call snd_pcm_new(). But that's not true for ASoC drivers, because
I should really call snd_soc_new_pcms(), which in turn calls soc_new_pcm(), and *that*
function calls snd_pcm_new(). However, none of that explains why it's the *codec* driver
that is calling these functions. I don't understand why the codec driver is registering
new PCMs. Shouldn't the PCM driver be registering the codec?
Linux Kernel Developer @ Freescale
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