[alsa-devel] my driver can't reproduce continuously
morimoto.kuninori at renesas.com
Mon Jul 27 11:50:25 CEST 2009
> Yes, because the PCM core thinks a buffer underrun happens,
> judging from the pointer callback value your driver returned.
> That's why I asked many times to check the values returned from the
> pointer callback. This value and the timing of
> snd_pcm_period_elapsed() is the only information the PCM core checks.
Thank you and sorry.
I didn't know the "ring buffer".
The return value of pointer funtion seems OK.
But I didn't use ring buffer.
this is the reason driver will be stopped.
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