[PATCH 1/2] hwmon: add description of the update_rate sysfs attribute

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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@xxxxxxxxxxxxxxxx>
---
 Documentation/hwmon/sysfs-interface |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 3de6b0b..39e9844 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -92,6 +92,18 @@ name		The chip name.
 		RO
 
 
+***************
+* Update Rate *
+***************
+
+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 *
 ************
-- 
1.5.4.3


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