[alsa-devel] [PATCH 2/2] ASoC: codecs: Add da7218 codec driver

[Opensource [Adam Thomson]]

On November 8, 2015 10:34, Mark Brown wrote:

> > > Hang on, is this just recording a DC value with the ADC and then looking
> > > at that?
> 
> > The RMS of the Mic signal is taken and compared to the trigger level set. If
> > it's above that level then an IRQ is raised.
> 
> What I'm trying to figure out here is if this depends on the audio
> routing at runtime or if it's got dedicated configuration?

This feature is available for any/all mics connected. Which mics are enabled
is a runtime configuration of routing, so to me it makes sense also that we can
configure which channel triggers an event, based on our scenario at that time.