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authorChris Packham <chris.packham@alliedtelesis.co.nz>2017-05-15 04:30:28 +0300
committerGuenter Roeck <linux@roeck-us.net>2017-06-12 03:08:19 +0300
commit8f05bcc33e749dc6b6d1fefe2d0c1a97150b90b4 (patch)
tree246b8c0d33b7b68d37df369169c9727859e358d4 /Documentation/hwmon
parent3490c92a0963280f7f01ebb23989066a67dfd18d (diff)
downloadlinux-8f05bcc33e749dc6b6d1fefe2d0c1a97150b90b4.tar.xz
hwmon: (adt7475) temperature smoothing
When enabled temperature smoothing allows ramping the fan speed over a configurable period of time instead of jumping to the new speed instantaneously. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/adt74754
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/hwmon/adt7475 b/Documentation/hwmon/adt7475
index dc0b55794c47..09d73a10644c 100644
--- a/Documentation/hwmon/adt7475
+++ b/Documentation/hwmon/adt7475
@@ -114,6 +114,10 @@ minimum (i.e. auto_point1_pwm). This behaviour can be configured using the
pwm[1-*]_stall_disable sysfs attribute. A value of 0 means the fans will shut
off. A value of 1 means the fans will run at auto_point1_pwm.
+The responsiveness of the ADT747x to temperature changes can be configured.
+This allows smoothing of the fan speed transition. To set the transition time
+set the value in ms in the temp[1-*]_smoothing sysfs attribute.
+
Notes
-----