[alsa-devel] Possible problems with alsa soc

Liam Girdwood lg at opensource.wolfsonmicro.com
Tue Aug 7 11:27:15 CEST 2007

On Tue, 2007-08-07 at 14:12 +0530, Nobin Mathew wrote:
> Any way calling close() before open() is not possible, i will restate
> it as calling close() before prepare().
> Thanks
> Nobin Mathew
> On 8/6/07, Nobin Mathew <nobin.mathew at gmail.com> wrote:
> > Hi Liam,
> >
> > There are some players which will call snd-pcm_close() before any open
> > call, i dont know why they are calling this. So in ASoC it will put
> > the stream in SNDRV_CTL_POWER_D3hot and pop_wait equal to 1. This
> > state will make problems in snd_pcm_prepare (i.e soc_pcm_prepare).
> >
> > Trouble creating players and libraries are mpg123 and gstreamer library.

Can you give more detail about the problems. It's not obvious from your
message. SNDRV_CTL_POWER_D3hot and pop_wait should not stop audio
playback starting again. 



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