hwmon: Add description of the update_rate sysfs attribute

The update_rate attribute can be used by drivers to let userspace choose the update rate of the chip, if it is configurable. Signed-off-by: Ira W. Snyder <[email protected]> Signed-off-by: Jean Delvare <[email protected]>
mrcsosa · May 27, 2010 · d2b847d · d2b847d
1 parent 8c3c7a2
commit d2b847d
Showing 1 changed file with 10 additions and 3 deletions.
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
@@ -80,9 +80,9 @@ All entries (except name) are optional, and should only be created in a
 given driver if the chip has the feature.
 
 
-********
-* Name *
-********
+*********************
+* Global attributes *
+*********************
 
 name		The chip name.
 		This should be a short, lowercase string, not containing
@@ -91,6 +91,13 @@ name		The chip name.
 		I2C devices get this attribute created automatically.
 		RO
 
+update_rate	The rate at which the chip will update readings.
+		Unit: millisecond
+		RW
+		Some devices have a variable update rate. This attribute
+		can be used to change the update rate to the desired
+		frequency.
+
 
 ************
 * Voltages *