hwmon: Define a standard interface for chassis intrusion detection

Define a standard interface for the chassis intrusion detection feature
some hardware monitoring chips have. Some drivers have custom sysfs
entries for it, but a standard interface would allow integration with
user-space (namely libsensors.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Acked-by: Matt Roberds <mattroberds@cox.net>

diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 6dbfd5e..2f10ce6 100644 (file)
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -365,6 +365,7 @@ energy[1-*]_input           Cumulative energy use
                                Unit: microJoule
                                RO
 
+
 **********
 * Alarms *
 **********
@@ -453,6 +454,27 @@ beep_mask  Bitmask for beep.
                RW
 
 
+***********************
+* Intrusion detection *
+***********************
+
+intrusion[0-*]_alarm
+               Chassis intrusion detection
+               0: OK
+               1: intrusion detected
+               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.
+
+intrusion[0-*]_beep
+               Chassis intrusion beep
+               0: disable
+               1: enable
+               RW
+
+
 sysfs attribute writes interpretation
 -------------------------------------