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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 22:15:38 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 22:15:38 -0500
commitd7511ec8115487ccea2ce93bf58d5e5cd2c1c0a3 (patch)
treee428f9438a563f1fa77479e9c9c4ef8b2e451a8b /Documentation/hwmon/w83l786ng
parent0b61a2ba5dfd1620731e717d686e6ade657fd975 (diff)
parente84542f5db655d1ce7b4890832f0e5d19aae965d (diff)
Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (59 commits) hwmon: (lm80) Add individual alarm files hwmon: (lm80) De-macro the sysfs callbacks hwmon: (lm80) Various cleanups hwmon: (w83627hf) Refactor beep enable handling hwmon: (w83627hf) Add individual alarm and beep files hwmon: (w83627hf) Enable VBAT monitoring hwmon: (w83627ehf) The W83627DHG has 8 VID pins hwmon: (asb100) Add individual alarm files hwmon: (asb100) De-macro the sysfs callbacks hwmon: (asb100) Various cleanups hwmon: VRM is not written to registers hwmon: (dme1737) fix Super-IO device ID override hwmon: (dme1737) fix divide-by-0 hwmon: (abituguru3) Add AUX4 fan input for Abit IP35 Pro hwmon: Add support for Texas Instruments/Burr-Brown ADS7828 hwmon: (adm9240) Add individual alarm files hwmon: (lm77) Add individual alarm files hwmon: Discard useless I2C driver IDs hwmon: (lm85) Make the pwmN_enable files writable hwmon: (lm85) Return standard values in pwmN_enable ...
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1Kernel driver w83l786ng
2=====================
3
4Supported chips:
5 * Winbond W83L786NG/W83L786NR
6 Prefix: 'w83l786ng'
7 Addresses scanned: I2C 0x2e - 0x2f
8 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L786NRNG09.pdf
9
10Author: Kevin Lo <kevlo@kevlo.org>
11
12
13Module Parameters
14-----------------
15
16* reset boolean
17 (default 0)
18 Use 'reset=1' to reset the chip (via index 0x40, bit 7). The default
19 behavior is no chip reset to preserve BIOS settings
20
21
22Description
23-----------
24
25This driver implements support for Winbond W83L786NG/W83L786NR chips.
26
27The driver implements two temperature sensors, two fan rotation speed
28sensors, and three voltage sensors.
29
30Temperatures are measured in degrees Celsius and measurement resolution is 1
31degC for temp1 and temp2.
32
33Fan rotation speeds are reported in RPM (rotations per minute). Fan readings
34readings can be divided by a programmable divider (1, 2, 4, 8, 16, 32, 64
35or 128 for fan 1/2) to give the readings more range or accuracy.
36
37Voltage sensors (also known as IN sensors) report their values in millivolts.
38An alarm is triggered if the voltage has crossed a programmable minimum
39or maximum limit.
40
41/sys files
42----------
43
44pwm[1-2] - this file stores PWM duty cycle or DC value (fan speed) in range:
45 0 (stop) to 255 (full)
46pwm[1-2]_enable - this file controls mode of fan/temperature control:
47 * 0 Manual Mode
48 * 1 Thermal Cruise
49 * 2 Smart Fan II
50 * 4 FAN_SET
51pwm[1-2]_mode - Select PWM of DC mode
52 * 0 DC
53 * 1 PWM
54tolerance[1-2] - Value in degrees of Celsius (degC) for +- T