linux-kernel - [PATCH v2 2/3] Input: add ABS_SND

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Message-Id: <20230209232539.91500-1-soyer@irl.hu>
Date:   Fri, 10 Feb 2023 00:25:39 +0100
From:   Gergo Koteles <soyer@....hu>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jonathan Corbet <corbet@....net>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        Caleb Connolly <caleb@...nolly.tech>,
        Gergo Koteles <soyer@....hu>
Subject: [PATCH v2 2/3] Input: add ABS_SND_PROFILE

ABS_SND_PROFILE used to describe the state of a multi-value sound profile
switch. This will be used for the tri-state key on OnePlus phones or other
phones.

Signed-off-by: Gergo Koteles <soyer@....hu>
---
 Documentation/input/event-codes.rst    | 6 ++++++
 drivers/hid/hid-debug.c                | 1 +
 include/uapi/linux/input-event-codes.h | 1 +
 3 files changed, 8 insertions(+)

diff --git a/Documentation/input/event-codes.rst b/Documentation/input/event-codes.rst
index b4557462edd7..d43336e64d6a 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 e213bdde543a..76fb2ecbbc51 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -1018,6 +1018,7 @@ 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_TOUCH_MAJOR] = "MTMajor",
 	[ABS_MT_TOUCH_MINOR] = "MTMinor",
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 022a520e31fc..e765a8f9a3ae 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -866,6 +866,7 @@
 
 #define ABS_VOLUME		0x20
 #define ABS_PROFILE		0x21
+#define ABS_SND_PROFILE		0x22
 
 #define ABS_MISC		0x28
 
-- 
2.39.1