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Timestamp:
05/24/05 23:26:22 (8 years ago)
Author:
khali
Message:

Backport the cleanups and corrections Rudolf Marek and I did when
porting the chips documentation to Linux 2.6.

Files:
1 modified

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  • lm-sensors/trunk/doc/chips/w83781d

    r3000 r3007  
    1313Supported chips: 
    1414  * Winbond W83781D 
    15     Prefix 'w83781d' 
    16     Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports) 
    17     Datasheet: Publicly available at the Winbond website (www.winbond.com.tw) 
     15    Prefix: 'w83781d' 
     16    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 
     17    Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83781d.pdf 
    1818  * Winbond W83782D 
    19     Prefix 'w83782d' 
    20     Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports) 
    21     Datasheet: Publicly available at the Winbond website 
     19    Prefix: 'w83782d' 
     20    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 
     21    Datasheet: http://www.winbond.com/PDF/sheet/w83782d.pdf 
    2222  * Winbond W83783S 
    23     Prefix 'w83783s' 
     23    Prefix: 'w83783s' 
    2424    Addresses scanned: I2C 0x2d 
    25     Datasheet: Publicly available at the Winbond website 
     25    Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83783s.pdf 
    2626  * Winbond W83791D 
    27     Prefix 'w83791d' 
    28     Addresses scanned: I2C 0x2c - 0x2f (inclusive) 
    29     Datasheet: Publicly available at the Winbond website 
     27    Prefix: 'w83791d' 
     28    Addresses scanned: I2C 0x2c - 0x2f 
     29    Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83791d.pdf 
    3030  * Winbond W83627HF 
    31     Prefix 'w83627hf' 
    32     Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports) 
    33     Datasheet: Publicly available at the Winbond website 
     31    Prefix: 'w83627hf' 
     32    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 
     33    Datasheet: http://www.winbond.com/PDF/sheet/w83627hf.pdf 
    3434  * Winbond W83697HF 
    35     Prefix 'w83697hf' 
     35    Prefix: 'w83697hf' 
    3636    Addresses scanned: ISA 0x290 (8 I/O ports) 
    37     Datasheet: Publicly available at the Winbond website 
     37    Datasheet: http://www.winbond.com/PDF/sheet/w83697hf.pdf 
    3838  * Asus AS99127F 
    39     Prefix 'as99127f' 
    40     Addresses scanned: I2C 0x28 - 0x2f (inclusive) 
     39    Prefix: 'as99127f' 
     40    Addresses scanned: I2C 0x28 - 0x2f 
    4141    Datasheet: Unavailable from Asus 
    4242 
     
    9090 
    9191This driver implements support for the Winbond W83781D, W83782D, 
    92 W8783S, and W83627HF chips, and the Asus AS99127F chips. 
     92W83783S, W83791D, W83627HF and W83698HF chips, and the Asus AS99127F chips. 
    9393We will refer to them collectively as W8378* chips. 
    9494 
     
    104104 
    105105The W8378* implements temperature sensors (three on the W83781D and W83782D, 
    106 two on the W83783S), three FAN rotation speed sensors, voltage sensors 
     106two on the W83783S), three fan rotation speed sensors, voltage sensors 
    107107(seven on the W83781D, nine on the W83782D and six on the W83783S), VID 
    108108lines, alarms with beep warnings, and some miscellaneous stuff. 
     
    126126sensor(s) of 0.5 degree. 
    127127 
    128 FAN rotation speeds are reported in RPM (rotations per minute). An alarm is 
    129 triggered if the rotation speed has dropped below a programmable limit. FAN  
     128Fan rotation speeds are reported in RPM (rotations per minute). An alarm is 
     129triggered if the rotation speed has dropped below a programmable limit. Fan  
    130130readings can be divided by a programmable divider (1, 2, 4 or 8 for the 
    131131W83781D; 1, 2, 4, 8, 16, 32, 64 or 128 for the others) to give 
    132 the readings more range or accuracy. This is important because some FANs 
    133 report only one 'tick' each rotation, while others report two - making 
    134 all readings twice as high. Not all RPM values can accurately be represented, 
    135 so some rounding is done. With a divider of 2, the lowest representable 
    136 value is around 2600 RPM. 
     132the readings more range or accuracy. Not all RPM values can accurately be 
     133represented, so some rounding is done. With a divider of 2, the lowest 
     134representable value is around 2600 RPM. 
    137135 
    138136Voltage sensors (also known as IN sensors) report their values in volts. 
     
    157155 
    158156In addition to the alarms described above, there is a CHAS alarm on the 
    159 chips which triggers if your computer case is open.  
     157chips which triggers if your computer case is open. 
    160158 
    161159When an alarm goes off, you can be warned by a beeping signal through 
     
    172170The chips only update values each 1.5 seconds; reading them more often 
    173171will do no harm, but will return 'old' values. 
    174  
    175  
    176 W8378* PROBLEMS 
    177 ----------------- 
    178 Known problems: 
    179         - Some chips are misidentified. 
    180           This is caused by the chip having the wrong WCHIPID register 
    181           value, so there is no fix. The workaround is to use the 
    182           force_CHIP parameter. 
    183           (modprobe w83781d force_CHIP=BUS,0x2d where CHIP is the chip name 
    184            and BUS is your i2c bus number - 
    185            cat /proc/bus/i2c to see a list of bus numbers) 
    186172 
    187173 
     
    571557       the isa pins) 
    572558 
    573   781d allowable values for fan_div are 1,2,4,8. 
    574   782d/783s allowable values for fan_div are 1,2,4,8,16,32,64,128. 
    575  
    576559 
    577560