linux-kernel - Re: [PATCH v6 1/2] Input: add ABS_SND

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Message-ID: <rdryhql5vrjckh2yvcgbdcnlu2f4aiq6hbokgfzvrtdu33lp5u@fctqxdftabsy>
Date: Mon, 27 Oct 2025 09:52:06 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: david@...t.cz
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>, 
	Jonathan Corbet <corbet@....net>, Jiri Kosina <jikos@...nel.org>, 
	Benjamin Tissoires <bentiss@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, linux-input@...r.kernel.org, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	Gergo Koteles <soyer@....hu>
Subject: Re: [PATCH v6 1/2] Input: add ABS_SND_PROFILE

On Thu, Jul 31, 2025 at 11:17:01PM +0200, David Heidelberg via B4 Relay wrote:
> From: Gergo Koteles <soyer@....hu>
> 
> ABS_SND_PROFILE used to describe the state of a multi-value sound profile
> switch. This will be used for the alert-slider on OnePlus phones or other
> phones.
> 
> Profile values added as SND_PROFLE_(SILENT|VIBRATE|RING) identifiers
> to input-event-codes.h so they can be used from DTS.
> 

Reviewed-by: Bjorn Andersson <andersson@...nel.org>

Regards,
Bjorn

> Signed-off-by: Gergo Koteles <soyer@....hu>
> Signed-off-by: David Heidelberg <david@...t.cz>
> ---
>  Documentation/input/event-codes.rst    | 6 ++++++
>  drivers/hid/hid-debug.c                | 1 +
>  include/uapi/linux/input-event-codes.h | 9 +++++++++
>  3 files changed, 16 insertions(+)
> 
> diff --git a/Documentation/input/event-codes.rst b/Documentation/input/event-codes.rst
> index b4557462edd7b3fef9e9cd6c2c3cb2d05bb531ab..d43336e64d6aa4fe8a41b7e9947f4f214df6e1ab 100644
> --- a/Documentation/input/event-codes.rst
> +++ b/Documentation/input/event-codes.rst
> @@ -241,6 +241,12 @@ A few EV_ABS codes have special meanings:
>      emitted only when the selected profile changes, indicating the newly
>      selected profile value.
>  
> +* ABS_SND_PROFILE:
> +
> +  - Used to describe the state of a multi-value sound profile switch.
> +    An event is emitted only when the selected profile changes,
> +    indicating the newly selected profile value.
> +
>  * ABS_MT_<name>:
>  
>    - Used to describe multitouch input events. Please see
> diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
> index 7107071c7c516af48c0c5fc1206c1e01bae3889f..c58500d8b94b581e41ae098d6ce99db7783986b7 100644
> --- a/drivers/hid/hid-debug.c
> +++ b/drivers/hid/hid-debug.c
> @@ -3513,6 +3513,7 @@ static const char *absolutes[ABS_CNT] = {
>  	[ABS_DISTANCE] = "Distance",	[ABS_TILT_X] = "XTilt",
>  	[ABS_TILT_Y] = "YTilt",		[ABS_TOOL_WIDTH] = "ToolWidth",
>  	[ABS_VOLUME] = "Volume",	[ABS_PROFILE] = "Profile",
> +	[ABS_SND_PROFILE] = "SoundProfile",
>  	[ABS_MISC] = "Misc",
>  	[ABS_MT_SLOT] = "MTSlot",
>  	[ABS_MT_TOUCH_MAJOR] = "MTMajor",
> diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
> index 08cb157ab59364a41ac425fc9a4ea8eb2fae0e86..f443f61f9bb8e3c212da522d9b99a386a13c4475 100644
> --- a/include/uapi/linux/input-event-codes.h
> +++ b/include/uapi/linux/input-event-codes.h
> @@ -875,6 +875,7 @@
>  
>  #define ABS_VOLUME		0x20
>  #define ABS_PROFILE		0x21
> +#define ABS_SND_PROFILE		0x22
>  
>  #define ABS_MISC		0x28
>  
> @@ -984,4 +985,12 @@
>  #define SND_MAX			0x07
>  #define SND_CNT			(SND_MAX+1)
>  
> +/*
> + * ABS_SND_PROFILE values
> + */
> +
> +#define SND_PROFILE_SILENT	0x00
> +#define SND_PROFILE_VIBRATE	0x01
> +#define SND_PROFILE_RING	0x02
> +
>  #endif
> 
> -- 
> 2.50.1
> 
>