[alsa-devel] [PATCH 3/8] McBSP: OMAP3: Add Sidetone feature

Mark Brown broonie at opensource.wolfsonmicro.com
Mon Oct 12 12:33:00 CEST 2009

On Mon, Oct 12, 2009 at 01:28:48PM +0300, Eero Nurkkala wrote:

> No HW limits here... it's all about the hmm, "friendliness" of
> sidetones.

This is an application level issue.  We've no way of determining within
the drivers if a given path is actually being used as a real sidetone or
if it is being used for some other purpose.  As far as the drivers are
concerned these are unrelated controls.
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