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/Linux-v5.10/drivers/macintosh/
Dwindfarm_smu_controls.c258 struct device_node *smu, *fans, *fan; in smu_controls_init() local
268 for (fans = NULL; (fans = of_get_next_child(smu, fans)) != NULL;) in smu_controls_init()
269 if (of_node_name_eq(fans, "rpm-fans") || in smu_controls_init()
270 of_device_is_compatible(fans, "smu-rpm-fans")) in smu_controls_init()
273 fans && (fan = of_get_next_child(fans, fan)) != NULL;) { in smu_controls_init()
284 of_node_put(fans); in smu_controls_init()
288 for (fans = NULL; (fans = of_get_next_child(smu, fans)) != NULL;) in smu_controls_init()
289 if (of_node_name_eq(fans, "pwm-fans")) in smu_controls_init()
292 fans && (fan = of_get_next_child(fans, fan)) != NULL;) { in smu_controls_init()
303 of_node_put(fans); in smu_controls_init()
/Linux-v5.10/Documentation/hwmon/
Demc6w201.rst26 measures the speed of up to five fans, and controls the speed of
27 multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note
28 that it is possible to control more than three fans by connecting two
29 fans to one PWM output. The EMC6W201 will be available in a 36-pin
Dlm85.rst131 TACH signal from the fans. The ADM1027 can be configured to measure the
138 To smooth the response of fans to changes in temperature, the LM85 has an
167 fans in a PC or embedded system. The EMC6D101, available in a 24-pin SSOP
217 - temperature below which fans should be off or spinning very low.
219 - temperature over which fans start to spin.
221 - temperature when fans spin at full speed.
223 - temperature when all fans will run full speed.
239 the behaviour of fans. Write 1 to let fans spinning at
276 The number of pulses-per-rev of the fans can be set, Tach monitoring
Dmax31790.rst22 The MAX31790 controls the speeds of up to six fans using six independent
24 through the I2C interface. The outputs drive "4-wire" fans directly,
Dpc87427.rst24 monitoring capabilities. It can monitor up to 18 voltages, 8 fans and
25 6 temperature sensors. Only the fans and temperatures are supported at
Dit87.rst218 have support for 2 additional fans. The additional fans are supported by the
223 counters for fans 1 to 3. This is better (no more fan clock divider mess) but
235 IT8728F. It only supports 3 fans, 16-bit fan mode, and the full speed mode
239 to IT8728F. It only supports 16-bit fan mode. Both chips support up to 6 fans.
241 The IT8790E supports up to 3 fans. 16-bit fan mode is always enabled.
288 (temperatures, voltages and fans.)
Dthmc50.rst86 so it stops fans even if the value 0 into the ANALOG_OUT register does not.
89 in the temp3 mode), five temperature readings and two fans.
Ducd9000.rst134 created only for enabled fans.
135 Note that even though UCD90910 supports up to 10 fans,
136 only up to four fans are currently supported.
Dasc7621.rst70 individual fans on each that would benefit from individual fan control.
74 fan types. We can also support pulse-stretched PWM so that 3-wire fans
103 The aSC7621 has tachometer inputs to measure fan speed on up to four fans.
121 - 3 PWM fan speed control outputs for 2-, 3- or 4-wire fans and up to 4 fan
Dw83781d.rst189 One user has reported problems with fans stopping
198 - One user reports fans stopping under high server load.
352 - 3 fans, identical to the W83781D
355 - 2 fans only, 1350000/RPM/div
441 One remarkable thing is that the fans would only have two or three
446 fans run at low speed, and 0x7F or 0x80 to make them run at full speed.
458 - seems to turn fans off after some time(1-2 minutes)... might be
465 - slightly "on-ner" than off, but my fans do not get to move. I can
Dsch5627.rst21 capabilities. They can monitor up to 5 voltages, 4 fans and 8 temperatures.
Ddell-smm-hwmon.rst15 queried for the status of fans and temperature sensors. Userspace
26 Temperature sensors and fans can be queried and set via the standard
59 ``pwm1_enable`` sets automatic control for all fans.
Dftsteutates.rst22 8 fans. It also contains an integrated watchdog which is currently
Dsch5636.rst27 The Fujitsu Theseus can monitor up to 5 voltages, 8 fans and 16
Dadt7475.rst144 `pwm[1-*]_stall_disable sysfs attribute`. A value of 0 means the fans will shut
145 off. A value of 1 means the fans will run at auto_point1_pwm.
Duserspace-tools.rst8 voltages, fans speed). They are often connected through an I2C bus, but some
Dmax31785.rst41 second rotor of fans 1-4
Dnct6775.rst120 is lower than optimal. Some fans might not be present because they share pins
145 * 0 Fan control disabled (fans set to maximum speed)
248 critical temperature mode, in which the fans should run at full speed.
/Linux-v5.10/Documentation/devicetree/bindings/hwmon/
Daspeed-pwm-tacho.txt6 There can be upto 8 fans supported. Each fan can have one PWM output and
32 representing a fan. If there are 8 fans each fan can have one PWM port and
Dmax31785.txt19 fans@52 {
Dmax6650.txt14 allow more fine-grained control of slower fans.
/Linux-v5.10/drivers/sbus/char/
Dbbc_i2c.h66 struct list_head fans; member
/Linux-v5.10/Documentation/ABI/testing/
Ddebugfs-ec20 This can influence the way your machine is cooled and fans may
Dsysfs-driver-samsung-laptop9 their fans quiet at all costs. Reading from this file
/Linux-v5.10/drivers/thermal/intel/int340x_thermal/
DKconfig25 turning on the fans.

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