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authorIra W. Snyder <iws@ovro.caltech.edu>2010-05-27 13:58:45 -0400
committerJean Delvare <khali@linux-fr.org>2010-05-27 13:58:45 -0400
commitd2b847d489ee4e9921bc61f47c3d0e992692fc0f (patch)
tree07c583b26ab1e3a27a9b1ecbf84325e9a26ce57e /Documentation/hwmon
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/hwmon')
-rw-r--r--Documentation/hwmon/sysfs-interface13
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 3de6b0bcb147..d4e2917c6f18 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
80given driver if the chip has the feature. 80given driver if the chip has the feature.
81 81
82 82
83******** 83*********************
84* Name * 84* Global attributes *
85******** 85*********************
86 86
87name The chip name. 87name The chip name.
88 This should be a short, lowercase string, not containing 88 This should be a short, lowercase string, not containing
@@ -91,6 +91,13 @@ name The chip name.
91 I2C devices get this attribute created automatically. 91 I2C devices get this attribute created automatically.
92 RO 92 RO
93 93
94update_rate The rate at which the chip will update readings.
95 Unit: millisecond
96 RW
97 Some devices have a variable update rate. This attribute
98 can be used to change the update rate to the desired
99 frequency.
100
94 101
95************ 102************
96* Voltages * 103* Voltages *