Re: [PATCH] ASoC: rt715:add Mic Mute LED control support

From: Mark Brown
Date: Tue Nov 03 2020 - 13:00:01 EST


On Tue, Nov 03, 2020 at 10:13:03AM -0600, Pierre-Louis Bossart wrote:
> Somehow this patch was filtered by alsa-devel servers?

It'll be a post by a non-subscriber I guess, in which case it will
appear later.

> Actually thinking more about it, having two controls for 'mute LED' and
> 'capture switch' could lead to inconsistent states where the LED is on
> without mute being activated. we should really bolt the LED activation to
> the capture switch, that way the mute and LED states are aligned.

Yeah, it's just asking for trouble and seems to defeat the point of
having the LED in the first place - aside from the general issues with
it being software controlled it'll require specific userspace support to
set it. Users won't be able to trust that the LED state accurately
reflects if they're muted or not. Your proposal is more what I'd expect
here, I'm not sure we can do much better with something software
controllable.

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