[alsa-devel] [PATCH 1/3] ASoC: Add signal generator widget type

Liam Girdwood lrg at ti.com
Thu Dec 1 16:55:14 CET 2011

On Thu, 2011-12-01 at 15:30 +0000, Mark Brown wrote:
> On Thu, Dec 01, 2011 at 03:27:00PM +0000, Liam Girdwood wrote:
> > On Wed, 2011-11-30 at 20:57 +0000, Mark Brown wrote:
> > > A signal generator behaves as an input would but is not considered for
> > > any of the special behaviour associated with external input pins. This
> > > is especially useful when automatically working out not connected widgets.
> > Would this not be an output type ?
> It's a signal source - in terms of the DAPM graph and figuring out a
> route from an input to an output it's an input.

Ah, OK - I'm thinking here of an internal signal generator (i.e. coming
from within platform/codec). e.g. we could add a simple sine wave
generator to OMAP4 ABE for test/debug purposes.



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