1 Kernel driver w83l786ng 2 ======================= 3 4 Supported 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 14 Author: Kevin Lo <kevlo@kevlo.org> 15 16 17 Module 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 27 Description 28 ----------- 29 30 This driver implements support for Winbond W83L786NG/W83L786NR chips. 31 32 The driver implements two temperature sensors, two fan rotation speed 33 sensors, and three voltage sensors. 34 35 Temperatures are measured in degrees Celsius and measurement resolution is 1 36 degC for temp1 and temp2. 37 38 Fan rotation speeds are reported in RPM (rotations per minute). Fan readings 39 can be divided by a programmable divider (1, 2, 4, 8, 16, 32, 64 40 or 128 for fan 1/2) to give the readings more range or accuracy. 41 42 Voltage sensors (also known as IN sensors) report their values in millivolts. 43 An alarm is triggered if the voltage has crossed a programmable minimum 44 or maximum limit. 45 46 /sys files 47 ---------- 48 49 pwm[1-2] 50 - this file stores PWM duty cycle or DC value (fan speed) in range: 51 52 0 (stop) to 255 (full) 53 pwm[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 60 pwm[1-2]_mode 61 - Select PWM of DC mode 62 63 * 0 DC 64 * 1 PWM 65 tolerance[1-2] 66 - Value in degrees of Celsius (degC) for +- T
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