hwmon: (it87) Add support for beep on alarm
The IT87xxF chips support beeping on alarm, if properly wired and
configured. There is one control bit for each input type (temperature,
fan, voltage.) Let the user see and change them.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index f9ba96c..23b773f 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -136,6 +136,10 @@
seconds since the last update). This means that you can easily miss
once-only alarms.
+Out-of-limit readings can also result in beeping, if the chip is properly
+wired and configured. Beeping can be enabled or disabled per sensor type
+(temperatures, voltages and fans.)
+
The IT87xx only updates its values each 1.5 seconds; reading it more often
will do no harm, but will return 'old' values.