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Timestamp:
05/24/05 23:26:22 (9 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/lm78

    r3000 r3007  
    55 
    66Supported chips: 
    7   * National Semiconductors LM78 
    8     Prefix `lm78' 
    9     Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports) 
    10     Datasheet: Publicly available at the National Semiconductors website 
    11   * National Semiconductors LM78-J 
    12     Prefix `lm78-j' 
    13     Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports) 
    14     Datasheet: Publicly available at the National Semiconductors website 
    15   * National Semiconductors LM79 
    16     Prefix `lm79' 
    17     Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports) 
    18     Datasheet: Publicly available at the National Semiconductors website 
     7  * National Semiconductor LM78 
     8    Prefix: 'lm78' 
     9    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 
     10    Datasheet: Publicly available at the National Semiconductor website 
     11  * National Semiconductor LM78-J 
     12    Prefix: 'lm78-j' 
     13    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 
     14    Datasheet: Publicly available at the National Semiconductor website 
     15  * National Semiconductor LM79 
     16    Prefix: 'lm79' 
     17    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 
     18    Datasheet: Publicly available at the National Semiconductor website 
    1919     
    2020Author: Frodo Looijaard <frodol@dds.nl> 
     
    4848----------- 
    4949 
    50 This driver implements support for the National Semiconductors LM78, LM78-J 
     50This driver implements support for the National Semiconductor LM78, LM78-J 
    5151and LM79. They are described as `Microprocessor System Hardware Monitors'. 
    5252 
     
    5656From here on, LM7* means either of these three types. 
    5757 
    58 The LM7* implements one temperature sensor, three FAN rotation speed sensors, 
     58The LM7* implements one temperature sensor, three fan rotation speed sensors, 
    5959seven voltage sensors, VID lines, alarms, and some miscellaneous stuff. 
    6060 
     
    6767between -55 and +125 degrees, with a resolution of 1 degree. 
    6868 
    69 FAN rotation speeds are reported in RPM (rotations per minute). An alarm is 
    70 triggered if the rotation speed has dropped below a programmable limit. FAN  
     69Fan rotation speeds are reported in RPM (rotations per minute). An alarm is 
     70triggered if the rotation speed has dropped below a programmable limit. Fan  
    7171readings can be divided by a programmable divider (1, 2, 4 or 8) to give 
    72 the readings more range or accuracy. This is important because some FANs 
    73 report only one 'tick' each rotation, while others report two - making 
    74 all readings twice as high. Not all RPM values can accurately be represented, 
    75 so some rounding is done. With a divider of 2, the lowest representable 
    76 value is around 2600 RPM. 
     72the readings more range or accuracy. Not all RPM values can accurately be 
     73represented, so some rounding is done. With a divider of 2, the lowest 
     74representable value is around 2600 RPM. 
    7775 
    7876Voltage sensors (also known as IN sensors) report their values in volts.