linux-kernel - Re: [PATCH 1/2] ALSA:ControlName.txt: Add 'Analogue' as a prefix for volume controls

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Date:	Sat, 21 Mar 2015 08:50:23 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Howard Mitchell <hm@...edded.co.uk>
Cc:	broonie@...nel.org, lgirdwood@...il.com, perex@...ex.cz,
	corbet@....net, alsa-devel@...a-project.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	gordon@...udio.com
Subject: Re: [PATCH 1/2] ALSA:ControlName.txt: Add 'Analogue' as a prefix for volume controls

At Thu, 19 Mar 2015 12:08:29 +0000,
Howard Mitchell wrote:
> 
> Currently 'Playback Volume' is the correct way to express an analogue
> volume control. However, this control name has initialisation defaults
> applied when using 'alsactl restore' and in some cases this is not
> appropriate. An example would be a control that has a selection of
> 0db and -6dB of gain that is intended to set the fullscale ouput
> voltage of a DAC. The TI pcm512x family of DAcs have such a control.
> In this case the device/driver reset defaults are preferred.
> 
> Signed-off-by: Howard Mitchell <hm@...edded.co.uk>

Mark, feel free to take this if you apply the next one.

Acked-by: Takashi Iwai <tiwai@...e.de>


thanks,

Takashi

> ---
>  Documentation/sound/alsa/ControlNames.txt |   10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/sound/alsa/ControlNames.txt b/Documentation/sound/alsa/ControlNames.txt
> index 79a6127..3fc1cf50 100644
> --- a/Documentation/sound/alsa/ControlNames.txt
> +++ b/Documentation/sound/alsa/ControlNames.txt
> @@ -71,11 +71,11 @@ SOURCE:
>    HDMI/DP	(either HDMI or DisplayPort)
>  
>  Exceptions (deprecated):
> -  [Digital] Capture Source
> -  [Digital] Capture Switch	(aka input gain switch)
> -  [Digital] Capture Volume	(aka input gain volume)
> -  [Digital] Playback Switch	(aka output gain switch)
> -  [Digital] Playback Volume	(aka output gain volume)
> +  [Analogue|Digital] Capture Source
> +  [Analogue|Digital] Capture Switch	(aka input gain switch)
> +  [Analogue|Digital] Capture Volume	(aka input gain volume)
> +  [Analogue|Digital] Playback Switch	(aka output gain switch)
> +  [Analogue|Digital] Playback Volume	(aka output gain volume)
>    Tone Control - Switch
>    Tone Control - Bass
>    Tone Control - Treble
> -- 
> 1.7.9.5
> 
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