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Frodo Looijaard
ca90531f6b
* LM75 temperature limits initializations were switched * LM78 VID readings were off by a factor 100 * New bit-mask constants in sensors.h for LM78 alarm field git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@49 7894878c-1315-0410-8ee3-d5d059ff63e0
25 lines
1.2 KiB
Plaintext
25 lines
1.2 KiB
Plaintext
This file documents the lm75 directories.
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There will be one directory created for each detected LM75 chip. As LM75
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chips can only be on a SMBus, they will be called lm75-i2c-?-??, with
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the first question mark being the number of the i2c bus (see /proc/bus/i2c
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for a list of them, if i2c-proc is loaded), and the SMBus (I2C) address
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of the chip at the end. An LM75 is uniquely characterised with these
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two numbers. /proc/sys/dev/sensors/chips contains the SYSCTL values for
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all chip directories.
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Within each LM75 directory, you can find the following files:
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* temp (LM75_SYSCTL_TEMP)
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A list of three numbers. The first number is the Overtemperature Shutdown
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value, the second number is Hysteris value, and the third number is the
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current temperature. The first two values can be modified. Each value can
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be set and read to half-degree accuracy. All values are in degrees Celcius.
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An alarm is issued (usually to a connected LM78) when the temperature
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gets higher then the Overtemperature Shutdown value; it stays on until
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the temperature falls below the Hysteris value.
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If accessed through sysctl, this is a list of longs, each being the
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temperature times 10.
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The data for each LM75 is updated each 1.5 seconds, but only if it is actually
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read.
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