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Kernel driver `mtp008.o' |
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========================= |
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Status: Complete; Beta. |
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This chip is quite configurable and many settings cannot |
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be done through the driver. Hopefully the BIOS settings will |
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be correct for most motherboards. |
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Supported chips: |
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* Myson MTP008 |
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Prefix: 'mtp008' |
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Addresses scanned: I2C 0x2c - 0x2e |
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Datasheet: Publicly available at the Myson website |
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Author: Kris Van Hees <aedil@alchar.org> |
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Description |
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----------- |
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The Myson MTP008 is similar in function to the Winbond W83781D and the |
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National Semi LM78. See documentation for those chips for an overview. |
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The MTP008 chip has several pins that are configurable. |
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The three temperature sensors are configurable via the driver |
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using either the /proc entries or 'set sensorx y' statements in |
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/etc/sensors.conf. |
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One temperature input is always temp1, and the sensor type is configured |
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with the sensor1 entry in /proc. |
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One input is either in4 or temp2, and is configured with the sensor2 entry. |
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One input is either in5 or temp3, and is configured with the sensor3 entry. |
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For example, on the Tyan S1824D motherboard, |
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AIN4 is configured as PII temp sensor 2 and |
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AIN5 is hooked up to the -12V sensing circuit. |
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Other Tyan motherboards (the 2510 Thunder and the Tiger 200) appear to |
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have different configurations. |
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For the 2510, which has two MTP008 chips, each with a different |
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configuration, follow the instructions in the mtp008 section of |
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etc/sensors.conf.eg to configure 'sensors' correctly. |
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The PWM outputs are configurable via the driver. |
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PWM values are from 0 to 255. The first value in the /proc entry is |
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the pwm value; the second is the enable (0 or 1). |
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The fan3 and pwm1 functions share a pin. |
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If pwm1 is enabled than fan3 will read as 0. |
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The Fan input types (2 wire or 3 wire) are configurable but |
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not via the driver. |
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The driver now preserves pin settings that the BIOS configures. |
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If your BIOS did it right then the driver should work great. |
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The MTP008 has sensor type selection in /proc like the Winbond W83782D. |
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However, the appropriate values used to make the selection are different. |
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To select a sensor type, echo the value to the /proc entry, for example: |
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echo 1 > /proc/sys/dev/sensors/mtp008-i2c-0-2d/sensor1 |
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Or, use /etc/sensors.conf and add a line 'set sensor1 1', for example. |
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Hopefully the BIOS has set these already. |
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Sensor selection is as follows: |
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Value Function Valid on sensors |
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----- -------- ---------------- |
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1 Analog input (not for temperature sensing) 2,3 |
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2 Thermistor 1,2,3 |
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3 Pentium diode 1,2 |
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