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Mark D. Studebaker
d3df8ec7dc
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@969 7894878c-1315-0410-8ee3-d5d059ff63e0
59 lines
1.8 KiB
Plaintext
59 lines
1.8 KiB
Plaintext
Kernel driver `mtp008.o'
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=========================
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Status: Complete; Alpha.
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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 (inclusive)
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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 three inputs that are configurable.
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One input is always temp1, and the sensor type is configured with the sensor1 entry.
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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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We are making the initial assumption that
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AIN4 is to be configured as PII temp sensor 2.
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We are also making the assumption that
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AIN5 is hooked up to the -12V sensing circuit.
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This is the configuration on the Tyan S1824D motherboard.
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Setting temp sensors 1 and 2 to be a PII sensors is done as follows:
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Register 0x57: 0 0 0 0 1 1 0 0
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| \ / +-- AIN5/VT3 with AIN5
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| +----- AIN4/VT2/PII with PII
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+-------- VT1/PII with PII
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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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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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Maintainer
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-----------------
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Send requests to the sensors@stimpy.netroedge.com mailing list.
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