Documentation/hwmon/f71805f.rst

44 -----------
50 This chip also has fan controlling features, using either DC or PWM, in
57 The Fintek F71806F/FG Super-I/O chip is essentially the same as the
65 ------------------
67 Voltages are sampled by an 8-bit ADC with a LSB of 8 mV. The supported
69 need external resistors. An exception is in0, which is used to monitor
81 	name    use           R1      R2     divider  raw val.
84 in1     VIN1    VTT1.2V      10K       -        1.00    1.20 V
89 in6     VIN6    VCC1.5V      10K       -        1.00    1.50 V
90 in7     VIN7    VCORE        10K       -        1.00   ~1.40 V [1]_
101 are free to use a completely different setup. As a matter of fact, the
111 --------------
113 Fan rotation speeds are reported as 12-bit values from a gated clock
119 The chip assumes 2 pulse-per-revolution fans.
126 ----------------------
133 All temperature channels are external, there is no embedded temperature
141 -----------
143 Both PWM (pulse-width modulation) and DC fan speed control methods are
144 supported. The right one to use depends on external circuitry on the
149 When the PWM method is used, you can select the operating frequency,
152 control, but may generate annoying high-pitch noise. So a frequency just
159 corresponds to a pwm value of 106 for the driver. The driver doesn't
163 to the pwm<n>_enable file.
166   You ask for a specific PWM duty cycle or DC voltage by writing to the
167   pwm<n> file.
171   pwm<n>_auto_point<m>_temp and _fan files. These define a staircase