hwmon: Document the new fan1_target interface file

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

1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index d73d2e8c7534..a9a18ad0d17a 100644
--- 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.