[alsa-devel] [PATCH] ASoC: OMAP: Add checking to detect bufferless pcms

Jarkko Nikula jhnikula at gmail.com
Wed Apr 22 11:01:28 CEST 2009

On Wed, Apr 22, 2009 at 11:43 AM, Mark Brown <broonie at sirena.org.uk> wrote:

> On Wed, Apr 22, 2009 at 11:30:32AM +0300, Jarkko Nikula wrote:
> > Is this something where DAI driver or another end of connection is used
> to
> > provide clocking and the whole setup is then controlled with ALSA PCM
> API?
> > Somehow I have the feeling that would there be a better way to achieve it
> > than with dummy bufferless transfer?
> The host isn't transferring any data at all in these cases.  Ideally
> we'd support multiple platforms and there'd be a dummy platform driver
> to go with the dummy DAI driver.

Probably it's better to extend this patch to other architectures as well (at
least DaVinci) where possible in order to be more consistent. I just noticed
that also PXA is having the same feature.


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