Re: [alsa-devel] [PATCH v3 4/5] ASoC: tda998x: adjust the audio hwparameters from EDID

[Jean-Francois Moine]

On Wed, 05 Feb 2014 10:19:22 +0100
Lars-Peter Clausen <lars@xxxxxxxxxx> wrote:

> > So, in the CODEC, I don't see how I could update the parameters
> > dictated by the EDID otherwise in changing the DAI driver parameters.
> >  
> 
> The startup function is the right place. But instead of modifying the DAI 
> use snd_pcm_hw_constraint_mask64(), snd_pcm_hw_constraint_list(), etc. to 
> setup the additional constraints that come from the EDID.

It is more complicated, but it works. Nevertheless, I have 2 problems:

- snd_pcm_hw_constraint_list() keeps a pointer to the list, so, it
  cannot be in the stack. It fix this with static struct and rate array.

- snd_pcm_hw_constraint_mask64() is not exported.
  Is there an other way to set constraints on the formats/sample widths?

-- 
Ken ar c'hentaÃ	|	      ** Breizh ha Linux atav! **
Jef		|		http://moinejf.free.fr/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/