[alsa-devel] [PATCH] ALSA: pcm - introduce soc_delay

Jassi Brar jaswinder.singh at linaro.org
Mon Jul 23 16:21:52 CEST 2012

On 23 July 2012 16:09, Vinod Koul <vinod.koul at linux.intel.com> wrote:

> Take the case of a DSP which employs DMA on input and output (of the
> DSP)
> At start, DSP would buffer some data, assuming a period. And assume app
> has filed one period only. So at start as we buffered a period, ALSA
> threw up wrong xrun, as it wasn't aware that this buffer is not yet
> rendered.
I thought the data was supposed to leave the ring-buffer only _after_
the TRIGGER_START call ?

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