Documentation/hwmon/w83792d.rst

44 The driver implements three temperature sensors, seven fan rotation speed
45 sensors, nine voltage sensors, and two automatic fan regulation
46 strategies called: Smart Fan I (Thermal Cruise mode) and Smart Fan II.
48 The driver also implements up to seven fan control outputs: pwm1-7.  Pwm1-7
53 Automatic fan control mode is possible only for fan1-fan3.
55 For all pwmX outputs, a value of 0 means minimum fan speed and a value of
56 255 means maximum fan speed.
63 Fan rotation speeds are reported in RPM (rotations per minute). An alarm is
64 triggered if the rotation speed has dropped below a programmable limit. Fan
105 of full speed rotation of corresponding fan.
130 Fan control
136 Works as expected. You just need to specify desired PWM/DC value (fan speed)
142 In this mode, W83792D provides the Smart Fan system to automatically control
143 fan speed to keep the temperatures of CPU and the system within specific
146 interval. The fan speed will be lowered as long as the current temperature
148 exceeds the high limit (T+tolerance), the fan will be turned on with a
156 limit (T-tolerance), the fan speed will be fixed at the current speed because
163 Smart Fan II
166 W83792D also provides a special mode for fan. Four temperature points are
170 for each fan.
177 	- this file stores PWM duty cycle or DC value (fan speed) in range:
181 	- this file controls mode of fan/temperature control:
185 	    * 2 Smart Fan II
197 	- four temperature points for each fan for Smart Fan II
199 	- three PWM/DC levels for each fan for Smart Fan II