Re: General question about capabilities for switches

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Ulrich Sørensen wrote:
> SOC_DOUBLE_EXT("ALC Switch", DA7213_ALC_CTRL1, DA7213_ALC_L_EN_SHIFT,
>                DA7213_ALC_R_EN_SHIFT, DA7213_ALC_EN_MAX,
>                DA7213_NO_INVERT, snd_soc_get_volsw, da7213_put_alc_sw),
>
> In amixer the capabilities are show as:
>
> Simple mixer control 'ALC',0
>   Capabilities: pswitch
>   Playback channels: Front Left - Front Right
>   Mono:
>   Front Left: Playback [off]
>   Front Right: Playback [off]
>
> I had expected the switch to both playback and capture capabilities for
> the ALC switch since it is defined as "ALC Switch" and not "ALC Playback
> Switch" in the driver.

In the "simple" mixer API, controls are either playback or capture.
Having both would imply that there were two independent switches.


Regards,
Clemens

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