Clemens Ladisch wrote:
>In the "simple" mixer API, controls are either playback or capture.
>Having both would imply that there were two independent switches.
If that is the case then I do not understand the documentation which states:
This document describes standard names of mixer controls.
3 Syntax: [LOCATION] SOURCE [CHANNEL] [DIRECTION] FUNCTION
4
5 DIRECTION:
6 <nothing> (both directions)
7 Playback
8 Capture
9 Bypass Playback
10 Bypass Capture
I feel like I am missing something here.
Best Regards,
Ulrich Sørensen
________________________________________
Fra: Clemens Ladisch [cladisch@xxxxxxxxxxxxxx]
Sendt: 23. september 2016 15:45
Til: alsa-user@xxxxxxxxxxxxxxxxxxxxx
Emne: Re: General question about capabilities for switches
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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