[alsa-devel] ASOC PCM formats

[Mark Brown]

On Mon, Jun 09, 2008 at 09:08:18AM -0400, Jon Smirl wrote:

> Isn't the wm9712 an AC97 controller? on pxa..

It's an AC97 codec.

> codec dai = SNDRV_PCM_FMTBIT_S16  | SNDRV_PCM_FMTBIT_S24
> platform_dai = SNDRV_PCM_FMTBIT_S16_LE

I assume you mean the AC97 controller driver here?

> dma driver = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
> SNDRV_PCM_FMTBIT_S32_LE,

> I tried copying this. It sends 16 bit sound through the system.

Right; since the AC97 controller driver only offers 16 bit it constrains
the other two.