David Henningsson <david.henningsson at canonical.com> [2015-03-31 08:43:04 +0200]:
>
> On 2015-03-31 05:51, Hui Wang wrote:
> > According to my understanding, it should be the former one, PA tells
> > the driver to "mute the audio", and the driver sets the LED accordingly.
>
> Yes, this is correct. More specific, the mic mute LED reflects the state of
> the "Capture Switch" mixer control (mic mute LED lit when "Capture Switch"
> is off), and the mute LED reflects the state of the "Master Playback Switch"
> (mute LED lit when "Master Playback Switch" is off).
>
> Any discrepancy of the above would be a kernel bug.
>
Ok, thanks guys!
fyi: kernel.org ML report filed here:
http://marc.info/?l=linux-kernel&m=142801293803024
- Glenn
