linux-kernel - [PATCH v3 1/2] ABI: hwmon: Document "label" sysfs attribute

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Date:   Mon, 10 Jan 2022 18:22:55 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Jonathan Corbet <corbet@....net>
Cc:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, list@...ndingux.net,
        Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v3 1/2] ABI: hwmon: Document "label" sysfs attribute

Add the "label" sysfs attribute, which can contain a descriptive label
that allows to uniquely identify a device within the system.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---

Notes:
    v2: New patch
    v3: No change

 Documentation/ABI/testing/sysfs-class-hwmon | 8 ++++++++
 Documentation/hwmon/sysfs-interface.rst     | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon
index 1f20687def44..653d4c75eddb 100644
--- a/Documentation/ABI/testing/sysfs-class-hwmon
+++ b/Documentation/ABI/testing/sysfs-class-hwmon
@@ -9,6 +9,14 @@ Description:
 
 		RO
 
+What:		/sys/class/hwmon/hwmonX/label
+Description:
+		A descriptive label that allows to uniquely identify a
+		device within the system.
+		The contents of the label are free-form.
+
+		RO
+
 What:		/sys/class/hwmon/hwmonX/update_interval
 Description:
 		The interval at which the chip will update readings.
diff --git a/Documentation/hwmon/sysfs-interface.rst b/Documentation/hwmon/sysfs-interface.rst
index 85652a6aaa3e..209626fb2405 100644
--- a/Documentation/hwmon/sysfs-interface.rst
+++ b/Documentation/hwmon/sysfs-interface.rst
@@ -99,6 +99,10 @@ Global attributes
 `name`
 		The chip name.
 
+`label`
+		A descriptive label that allows to uniquely identify a device
+		within the system.
+
 `update_interval`
 		The interval at which the chip will update readings.
 
-- 
2.34.1