0001 Kernel driver w83l786ng
0002 =======================
0003
0004 Supported chips:
0005
0006 * Winbond W83L786NG/W83L786NR
0007
0008 Prefix: 'w83l786ng'
0009
0010 Addresses scanned: I2C 0x2e - 0x2f
0011
0012 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L786NRNG09.pdf
0013
0014 Author: Kevin Lo <kevlo@kevlo.org>
0015
0016
0017 Module Parameters
0018 -----------------
0019
0020 * reset boolean
0021 (default 0)
0022
0023 Use 'reset=1' to reset the chip (via index 0x40, bit 7). The default
0024 behavior is no chip reset to preserve BIOS settings
0025
0026
0027 Description
0028 -----------
0029
0030 This driver implements support for Winbond W83L786NG/W83L786NR chips.
0031
0032 The driver implements two temperature sensors, two fan rotation speed
0033 sensors, and three voltage sensors.
0034
0035 Temperatures are measured in degrees Celsius and measurement resolution is 1
0036 degC for temp1 and temp2.
0037
0038 Fan rotation speeds are reported in RPM (rotations per minute). Fan readings
0039 can be divided by a programmable divider (1, 2, 4, 8, 16, 32, 64
0040 or 128 for fan 1/2) to give the readings more range or accuracy.
0041
0042 Voltage sensors (also known as IN sensors) report their values in millivolts.
0043 An alarm is triggered if the voltage has crossed a programmable minimum
0044 or maximum limit.
0045
0046 /sys files
0047 ----------
0048
0049 pwm[1-2]
0050 - this file stores PWM duty cycle or DC value (fan speed) in range:
0051
0052 0 (stop) to 255 (full)
0053 pwm[1-2]_enable
0054 - this file controls mode of fan/temperature control:
0055
0056 * 0 Manual Mode
0057 * 1 Thermal Cruise
0058 * 2 Smart Fan II
0059 * 4 FAN_SET
0060 pwm[1-2]_mode
0061 - Select PWM of DC mode
0062
0063 * 0 DC
0064 * 1 PWM
0065 tolerance[1-2]
0066 - Value in degrees of Celsius (degC) for +- T
