Re: my ALS drv gives DMA underrun

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On Wed, May 28, 2008 at 11:17 AM, Norbert van Bolhuis
<nvbolhuis@xxxxxxxxxxxx> wrote:
> probably this question is asked many times.
>
> Anyway, I hope the experts are willing to help me here.
> I simply don't know how to avoid the DMA overrun that I'm facing
> when playing a tone.

Not calling snd_pcm_period_elapsed at the right time would cause the
behavior you see.    This function wakes up any apps that are waiting
to send data to the sound device.

Where can I find the source code for your driver?

Lee
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