[alsa-devel] [PATCH 1/3] ASoC: dapm: Add support for virtual mixer controls
broonie at kernel.org
Mon Oct 7 12:45:20 CEST 2013
On Sun, Oct 06, 2013 at 01:43:49PM +0200, Lars-Peter Clausen wrote:
> This patch adds support for virtual DAPM mixer controls. They are similar to
> virtual DAPM enums. There is no hardware register backing the control, so
> changing the control's value wont have any direct effect on the hardware. But it
> still influences the DAPM graph by causing the path it sits on to be connected
> or disconnected. This in turn can cause power changes for some of the widgets on
> the DAPM graph, which will then modify the hardware state.
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