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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/hwmon/w83l786ng.rst | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/hwmon/w83l786ng.rst | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/hwmon/w83l786ng.rst b/Documentation/hwmon/w83l786ng.rst new file mode 100644 index 000000000..06234dea4 --- /dev/null +++ b/Documentation/hwmon/w83l786ng.rst @@ -0,0 +1,66 @@ +Kernel driver w83l786ng +======================= + +Supported chips: + + * Winbond W83L786NG/W83L786NR + + Prefix: 'w83l786ng' + + Addresses scanned: I2C 0x2e - 0x2f + + Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L786NRNG09.pdf + +Author: Kevin Lo <kevlo@kevlo.org> + + +Module Parameters +----------------- + +* reset boolean + (default 0) + + Use 'reset=1' to reset the chip (via index 0x40, bit 7). The default + behavior is no chip reset to preserve BIOS settings + + +Description +----------- + +This driver implements support for Winbond W83L786NG/W83L786NR chips. + +The driver implements two temperature sensors, two fan rotation speed +sensors, and three voltage sensors. + +Temperatures are measured in degrees Celsius and measurement resolution is 1 +degC for temp1 and temp2. + +Fan rotation speeds are reported in RPM (rotations per minute). Fan readings +can be divided by a programmable divider (1, 2, 4, 8, 16, 32, 64 +or 128 for fan 1/2) to give the readings more range or accuracy. + +Voltage sensors (also known as IN sensors) report their values in millivolts. +An alarm is triggered if the voltage has crossed a programmable minimum +or maximum limit. + +/sys files +---------- + +pwm[1-2] + - this file stores PWM duty cycle or DC value (fan speed) in range: + + 0 (stop) to 255 (full) +pwm[1-2]_enable + - this file controls mode of fan/temperature control: + + * 0 Manual Mode + * 1 Thermal Cruise + * 2 Smart Fan II + * 4 FAN_SET +pwm[1-2]_mode + - Select PWM of DC mode + + * 0 DC + * 1 PWM +tolerance[1-2] + - Value in degrees of Celsius (degC) for +- T |