Changeset 1033

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Timestamp:
02/23/01 04:34:21 (12 years ago)
Author:
mds
Message:

Update doc about preserving mtp008 pin configuration.

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1 modified

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  • lm-sensors/trunk/doc/chips/mtp008

    r969 r1033  
    33 
    44Status: Complete; Alpha. 
     5        This chip is quite configurable and many settings cannot 
     6        be done through the driver. Hopefully the BIOS settings will 
     7        be correct for most motherboards. 
    58 
    69Supported chips: 
    … …  
    2023 
    2124 
    22 The MTP008 chip has three inputs that are configurable. 
    23 One input is always temp1, and the sensor type is configured with the sensor1 entry. 
     25The MTP008 chip has several pins that are configurable. 
     26 
     27The three temperature sensors are configurable via the driver 
     28using either the /proc entries or 'set sensorx y' statements in 
     29/etc/sensors.conf. 
     30One temperature input is always temp1, and the sensor type is configured 
     31with the sensor1 entry in /proc. 
    2432One input is either in4 or temp2, and is configured with the sensor2 entry. 
    2533One input is either in5 or temp3, and is configured with the sensor3 entry. 
    2634 
    27 We are making the initial assumption that 
    28 AIN4 is to be configured as PII temp sensor 2. 
    29 We are also making the assumption that 
     35For example, on the Tyan S1824D motherboard, 
     36AIN4 is configured as PII temp sensor 2 and 
    3037AIN5 is hooked up to the -12V sensing circuit. 
    31 This is the configuration on the Tyan S1824D motherboard. 
    3238 
    33 Setting temp sensors 1 and 2 to be a PII sensors is done as follows: 
     39Other Tyan motherboards (the 2510 Thunder and the Tiger 200) appear to 
     40have different configurations. 
    3441 
    35          Register 0x57: 0 0 0 0 1 1 0 0 
    36                                 | \ / +-- AIN5/VT3 with AIN5 
    37                                 |  +----- AIN4/VT2/PII with PII 
    38                                 +-------- VT1/PII with PII 
     42The PWM outputs are configurable but not via the driver. 
     43The Fan input types (2 wire or 3 wire) are configurable but 
     44not via the driver. 
    3945 
     46The driver now preserves pin settings that the BIOS configures. 
     47If your BIOS did it right then the driver should work great. 
    4048 
    4149The MTP008 has sensor type selection in /proc like the Winbond W83782D. 
    … …  
    4452To select a sensor type, echo the value to the /proc entry, for example: 
    4553        echo 1 > /proc/sys/dev/sensors/mtp008-i2c-0-2d/sensor1 
     54Or, use /etc/sensors.conf and add a line 'set sensor1 1', for example. 
     55Hopefully the BIOS has set these already. 
    4656 
    4757Sensor selection is as follows: