hwmon: Document the new fan1_target interface file

Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index d73d2e8c75344ca86b8e432e4620451d930bdeb7..a9a18ad0d17ab6c17be017615602827320ee93e5 100644 (file)
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -152,6 +152,13 @@ fan[1-*]_div       Fan divisor.
                Note that this is actually an internal clock divisor, which
                affects the measurable speed range, not the read value.
 
+fan[1-*]_target
+               Desired fan speed
+               Unit: revolution/min (RPM)
+               RW
+               Only makes sense if the chip supports closed-loop fan speed
+               control based on the measured fan speed.
+
 Also see the Alarms section for status flags associated with fans.