[alsa-devel] [PATCH 2/8] ASoC: Add support for virtual switch controls

[Lars-Peter Clausen]

On 01/11/2013 04:05 PM, Lars-Peter Clausen wrote:
> On 01/11/2013 02:57 PM, Mark Brown wrote:
>> On Fri, Jan 11, 2013 at 01:56:17PM +0100, Lars-Peter Clausen wrote:
>>> On 01/11/2013 01:45 PM, Mark Brown wrote:
>>
>>>> Virtual enums do actually end up routing, that's not what a mute control
>>>> usually does.  You can do the above in the manner I suggested, just have
>>>> the register forced to a particular value when the DAC is disabled.
>>
>>> Well, that's what the code does. The alternative is to implement more or
>>
>> No, it's not (at least not according to the changelog).  It implements a
>> totally separate virtual control.
> 
> What do you mean by 'separate'? Maybe this is was causes the confusion. Do
> you mean a separate DAPM control, like DAPM_SWITCH? That's not what the
> patch does it creates a virtual kcontrol, which can be used to control a
> mixers input. It's the pendant to SOC_DAPM_ENUM_VIRT not to

s/pendant/counterpart/ apparently this is a false friend

> SND_SOC_DAPM_VIRT_MUX. I realize that the commit message may have been a bit
> ambiguous in that regard.
> 
> - Lars
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