linux-kernel - [PATCH v2 3/7] ABI: sysfs-class-hwmon: add a description for tempY_crit

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Message-Id: <a14f98e1b23ea14cf14da3c3169955343ec28bbe.1632994837.git.mchehab+huawei@kernel.org>
Date:   Thu, 30 Sep 2021 11:44:50 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "Jonathan Corbet" <corbet@....net>,
        Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/7] ABI: sysfs-class-hwmon: add a description for tempY_crit_alarm

Such ABI symbol is currently not described. Document it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---

See [PATCH v2 0/7] at: https://lore.kernel.org/all/cover.1632994837.git.mchehab+huawei@kernel.org/

 Documentation/ABI/testing/sysfs-class-hwmon | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon
index ea5a129ae082..1f20687def44 100644
--- a/Documentation/ABI/testing/sysfs-class-hwmon
+++ b/Documentation/ABI/testing/sysfs-class-hwmon
@@ -410,6 +410,20 @@ Description:
 
 		RW
 
+What:		/sys/class/hwmon/hwmonX/tempY_crit_alarm
+Description:
+		Critical high temperature alarm flag.
+
+		- 0: OK
+		- 1: temperature has reached tempY_crit
+
+		RW
+
+		Contrary to regular alarm flags which clear themselves
+		automatically when read, this one sticks until cleared by
+		the user. This is done by writing 0 to the file. Writing
+		other values is unsupported.
+
 What:		/sys/class/hwmon/hwmonX/tempY_crit_hyst
 Description:
 		Temperature hysteresis value for critical limit.
-- 
2.31.1