Documentation/hwmon/w83793.rst

10     Addresses scanned: I2C 0x2c - 0x2f
15     - Yuan Mu (Winbond Electronics)
16     - Rudolf Marek <r.marek@assembler.cz>
20 -----------------
36 -----------
41     This driver exports 10 voltage sensors, up to 12 fan tachometer inputs,
42     6 remote temperatures, up to 8 sets of PWM fan controls, SmartFan
43     (automatic fan speed control) on all temperature/PWM combinations, 2
44     sets of 6-pin CPU VID input.
48     voltage0-2 is 2mV, resolution of voltage3/4/5 is 16mV, 8mV for voltage6,
49     24mV for voltage7/8. Temp1-4 have a 0.25 degree Celsius resolution,
50     temp5-6 have a 1 degree Celsiis resolution.
53     Temp1-4 have 2 possible types. It can be read from (and written to)
54     temp[1-4]_type.
56     - If the value is 3, it starts monitoring using a remote termal diode
58     - If the value is 6, it starts monitoring using the temperature sensor
61     Temp5-6 can be connected to external thermistors (value of
62     temp[5-6]_type is 4).
70     For fan sensors, an alarm triggers if the measured value is below the
73 * SmartFan/PWM control
74     If you want to set a pwm fan to manual mode, you just need to make sure it
76     to manual mode, you need to check the value of temp[1-6]_fan_map, make
78     control the fan.
80     Each temperature channel can control all the 8 PWM outputs (by setting the
82     mode using temp[1-6]_pwm_enable, 2 is Thermal Cruise mode and 3
84     slow down all controlled fans, this means one fan can receive different
85     PWM value requests from different temperature channels, but the chip
86     will always pick the safest (max) PWM value for each fan.
90     thermal_cruiseX + toleranceX, the chip will increase the PWM value,
91     if tempX_input < thermal_cruiseX - toleranceX, the chip will decrease
92     the PWM value. If the temperature is within the tolerance range, the PWM
95     SmartFanII works differently, you have to define up to 7 PWM, temperature
96     trip points, defining a PWM/temperature curve which the chip will follow.
98     implementation is quite different, giving you a finer-grained control.
110 -----
112   Only Fan1-5 and PWM1-3 are guaranteed to always exist, other fan inputs and
113   PWM outputs may or may not exist depending on the chip pin configuration.