diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2012-12-04 09:08:29 -0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2013-04-07 21:16:39 -0700 |
| commit | bbd8decd4123648ddeba2be485bc7e1a3117bfe4 (patch) | |
| tree | a39d3b3d8a787862b632d8c9ec0545c49a84747c /Documentation/hwmon/nct6775 | |
| parent | cdcaeceb74ff3686eb25de6812870fbc765c3c39 (diff) | |
hwmon: (nct6775) Add support for weighted fan control
The NCT677X series support weighted fan control. In this mode, a secondary
temperature source is used in addition to the primary temperature source to
control fan speed. Add support for this feature.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/nct6775')
| -rw-r--r-- | Documentation/hwmon/nct6775 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/hwmon/nct6775 b/Documentation/hwmon/nct6775 index b4fe6bc4d37..3f5587e3909 100644 --- a/Documentation/hwmon/nct6775 +++ b/Documentation/hwmon/nct6775 @@ -92,6 +92,25 @@ Common fan control attributes pwm[1-5]_temp_sel Temperature source. Value is temperature sensor index. For example, select '1' for temp1_input. +pwm[1-5]_weight_temp_sel + Secondary temperature source. Value is temperature + sensor index. For example, select '1' for temp1_input. + Set to 0 to disable secondary temperature control. + +If secondary temperature functionality is enabled, it is controlled with the +following attributes. + +pwm[1-5]_weight_duty_step + Duty step size. +pwm[1-5]_weight_temp_step + Temperature step size. With each step over + temp_step_base, the value of weight_duty_step is added + to the current pwm value. +pwm[1-5]_weight_temp_step_base + Temperature at which secondary temperature control kicks + in. +pwm[1-5]_weight_temp_step_tol + Temperature step tolerance. Thermal Cruise mode (2) ----------------------- |