7 Addresses scanned: none, address read from Super I/O config space
11 Addresses scanned: none, address read from Super I/O config space
12 Datasheet: Available from the Fintek website
13 * Fintek F71862FG and F71863FG
15 Addresses scanned: none, address read from Super I/O config space
16 Datasheet: Available from the Fintek website
17 * Fintek F71869F and F71869E
19 Addresses scanned: none, address read from Super I/O config space
20 Datasheet: Available from the Fintek website
21 * Fintek F71882FG and F71883FG
23 Addresses scanned: none, address read from Super I/O config space
24 Datasheet: Available from the Fintek website
27 Addresses scanned: none, address read from Super I/O config space
28 Datasheet: Available from the Fintek website
31 Addresses scanned: none, address read from Super I/O config space
32 Datasheet: Should become available on the Fintek website soon
35 Addresses scanned: none, address read from Super I/O config space
39 Addresses scanned: none, address read from Super I/O config space
41 Note: This is the 64-pin variant of the F71889FG, they have the
42 same device ID and are fully compatible as far as hardware
43 monitoring is concerned.
45 Author: Hans de Goede <hdegoede@redhat.com>
51 Fintek F718xx/F8000 Super I/O chips include complete hardware monitoring
52 capabilities. They can monitor up to 9 voltages, 4 fans and 3 temperature
55 These chips also have fan controlling features, using either DC or PWM, in
56 three different modes (one manual, two automatic).
58 The driver assumes that no more than one chip is present, which seems
65 The Voltage, Fan and Temperature Monitoring uses the standard sysfs
66 interface as documented in sysfs-interface, without any exceptions.
72 Both PWM (pulse-width modulation) and DC fan speed control methods are
73 supported. The right one to use depends on external circuitry on the
74 motherboard, so the driver assumes that the BIOS set the method
77 Note that the lowest numbered temperature zone trip point corresponds to
78 to the border between the highest and one but highest temperature zones, and
79 vica versa. So the temperature zone trip points 1-4 (or 1-2) go from high temp
80 to low temp! This is how things are implemented in the IC, and the driver
83 There are 2 modes to specify the speed of the fan, PWM duty cycle (or DC
84 voltage) mode, where 0-100% duty cycle (0-100% of 12V) is specified. And RPM
85 mode where the actual RPM of the fan (as measured) is controlled and the speed
86 gets specified as 0-100% of the fan#_full_speed file.
88 Since both modes work in a 0-100% (mapped to 0-255) scale, there isn't a
89 whole lot of a difference when modifying fan control settings. The only
90 important difference is that in RPM mode the 0-100% controls the fan speed
91 between 0-100% of fan#_full_speed. It is assumed that if the BIOS programs
92 RPM mode, it will also set fan#_full_speed properly, if it does not then
93 fan control will not work properly, unless you set a sane fan#_full_speed
96 Switching between these modes requires re-initializing a whole bunch of
97 registers, so the mode which the BIOS has set is kept. The mode is
98 printed when loading the driver.
100 Three different fan control modes are supported; the mode number is written
101 to the pwm#_enable file. Note that not all modes are supported on all
102 chips, and some modes may only be available in RPM / PWM mode.
103 Writing an unsupported mode will result in an invalid parameter error.
106 You ask for a specific PWM duty cycle / DC voltage or a specific % of
107 fan#_full_speed by writing to the pwm# file. This mode is only
108 available on the F71858FG / F8000 if the fan channel is in RPM mode.
110 * 2: Normal auto mode
111 You can define a number of temperature/fan speed trip points, which % the
112 fan should run at at this temp and which temp a fan should follow using the
113 standard sysfs interface. The number and type of trip points is chip
114 depended, see which files are available in sysfs.
115 Fan/PWM channel 3 of the F8000 is always in this mode!
117 * 3: Thermostat mode (Only available on the F8000 when in duty cycle mode)
118 The fan speed is regulated to keep the temp the fan is mapped to between
119 temp#_auto_point2_temp and temp#_auto_point3_temp.
121 All of the automatic modes require that pwm1 corresponds to fan1, pwm2 to
122 fan2 and pwm3 to fan3.