[alsa-devel] [PATCH] ASoC: rt5616: add kcontrol for headphone channel switch

[John Lin]

> -----Original Message-----
> From: Mark Brown [mailto:broonie at kernel.org]
> Sent: Saturday, March 05, 2016 11:52 AM
> To: John Lin
> Cc: lgirdwood at gmail.com; alsa-devel at alsa-project.org; Bard Liao; Flove;
> Oder Chiou; zhengsq at rock-chips.com
> Subject: Re: [PATCH] ASoC: rt5616: add kcontrol for headphone channel switch
> 
> On Thu, Mar 03, 2016 at 02:45:32AM +0000, John Lin wrote:
> 
> > Yes, It is another mute control that is missing on current driver.
> > This mute control is for headphone volume mute. Is it OK to rename it
> > to 'Headphone Volume Playback Switch'?
> 
> No, you should call it "Headphone Playback Switch".  Please see
> ControlNames.txt for details.

The schematic diagram of headphone is such as:

DAC --> HP Vol --> HP Vol Mute --> HP MIX --> HP Mute

The kcontrol named 'Headphone Playback Switch' was in use for 'HP Mute'.
The missing kcontrol is 'HP Vol Mute' in schematic diagram.
Could you give us advice in this case? Thank you very much.

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