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- 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
- 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
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