path: root/Documentation
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authorIra W. Snyder <iws@ovro.caltech.edu>2010-05-27 19:58:45 +0200
committerJean Delvare <khali@linux-fr.org>2010-05-27 19:58:45 +0200
commitd2b847d489ee4e9921bc61f47c3d0e992692fc0f (patch)
tree07c583b26ab1e3a27a9b1ecbf84325e9a26ce57e /Documentation
parent8c3c7a256f7ab142dfbcee2d8633dbce5a36fde7 (diff)
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 <iws@ovro.caltech.edu> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation')
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 3de6b0bcb14..d4e2917c6f1 100644
--- 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.
+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 *