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85f03bccd6
Signed-off-by: Kevin Lo <kevlo@kevlo.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
54 lines
1.6 KiB
Text
54 lines
1.6 KiB
Text
Kernel driver w83l786ng
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=====================
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Supported chips:
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* Winbond W83L786NG/W83L786NR
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Prefix: 'w83l786ng'
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Addresses scanned: I2C 0x2e - 0x2f
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Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L786NRNG09.pdf
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Author: Kevin Lo <kevlo@kevlo.org>
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Module Parameters
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-----------------
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* reset boolean
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(default 0)
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Use 'reset=1' to reset the chip (via index 0x40, bit 7). The default
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behavior is no chip reset to preserve BIOS settings
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Description
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-----------
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This driver implements support for Winbond W83L786NG/W83L786NR chips.
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The driver implements two temperature sensors, two fan rotation speed
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sensors, and three voltage sensors.
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Temperatures are measured in degrees Celsius and measurement resolution is 1
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degC for temp1 and temp2.
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Fan rotation speeds are reported in RPM (rotations per minute). Fan readings
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readings can be divided by a programmable divider (1, 2, 4, 8, 16, 32, 64
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or 128 for fan 1/2) to give the readings more range or accuracy.
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Voltage sensors (also known as IN sensors) report their values in millivolts.
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An alarm is triggered if the voltage has crossed a programmable minimum
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or maximum limit.
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/sys files
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----------
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pwm[1-2] - this file stores PWM duty cycle or DC value (fan speed) in range:
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0 (stop) to 255 (full)
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pwm[1-2]_enable - this file controls mode of fan/temperature control:
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* 0 Manual Mode
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* 1 Thermal Cruise
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* 2 Smart Fan II
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* 4 FAN_SET
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pwm[1-2]_mode - Select PWM of DC mode
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* 0 DC
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* 1 PWM
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tolerance[1-2] - Value in degrees of Celsius (degC) for +- T
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