1Kernel driver w83l786ng 2======================= 3 4Supported chips: 5 6 * Winbond W83L786NG/W83L786NR 7 8 Prefix: 'w83l786ng' 9 10 Addresses scanned: I2C 0x2e - 0x2f 11 12 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L786NRNG09.pdf 13 14Author: Kevin Lo <kevlo@kevlo.org> 15 16 17Module Parameters 18----------------- 19 20* reset boolean 21 (default 0) 22 23 Use 'reset=1' to reset the chip (via index 0x40, bit 7). The default 24 behavior is no chip reset to preserve BIOS settings 25 26 27Description 28----------- 29 30This driver implements support for Winbond W83L786NG/W83L786NR chips. 31 32The driver implements two temperature sensors, two fan rotation speed 33sensors, and three voltage sensors. 34 35Temperatures are measured in degrees Celsius and measurement resolution is 1 36degC for temp1 and temp2. 37 38Fan rotation speeds are reported in RPM (rotations per minute). Fan readings 39readings can be divided by a programmable divider (1, 2, 4, 8, 16, 32, 64 40or 128 for fan 1/2) to give the readings more range or accuracy. 41 42Voltage sensors (also known as IN sensors) report their values in millivolts. 43An alarm is triggered if the voltage has crossed a programmable minimum 44or maximum limit. 45 46/sys files 47---------- 48 49pwm[1-2] 50 - this file stores PWM duty cycle or DC value (fan speed) in range: 51 52 0 (stop) to 255 (full) 53pwm[1-2]_enable 54 - this file controls mode of fan/temperature control: 55 56 * 0 Manual Mode 57 * 1 Thermal Cruise 58 * 2 Smart Fan II 59 * 4 FAN_SET 60pwm[1-2]_mode 61 - Select PWM of DC mode 62 63 * 0 DC 64 * 1 PWM 65tolerance[1-2] 66 - Value in degrees of Celsius (degC) for +- T 67