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Viewing changes to Documentation/hwmon/sysfs-interface

  • Committer: Bazaar Package Importer
  • Author(s): Luke Yelavich
  • Date: 2009-08-05 23:00:52 UTC
  • Revision ID: james.westby@ubuntu.com-20090805230052-7xedvqcyk9dnnxb2
Tags: 2.6.31-1.1
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Documentation/hwmon/sysfs-interface
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[0-*]   denotes any positive number starting from 0
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[1-*]   denotes any positive number starting from 1
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RO      read only value
 
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WO      write only value
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RW      read/write value
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Read/write values may be read-only for some chips, depending on the
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                Unit: revolution/min (RPM)
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                RW
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fan[1-*]_max    Fan maximum value
 
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                Unit: revolution/min (RPM)
 
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                Only rarely supported by the hardware.
 
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                RW
 
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fan[1-*]_input  Fan input value.
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                Unit: revolution/min (RPM)
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                RO
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                user-space.
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                RO
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temp[1-*]_lowest
 
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                Historical minimum temperature
 
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                Unit: millidegree Celsius
 
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                RO
 
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temp[1-*]_highest
 
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                Historical maximum temperature
 
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                Unit: millidegree Celsius
 
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                RO
 
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temp[1-*]_reset_history
 
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                Reset temp_lowest and temp_highest
 
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                WO
 
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temp_reset_history
 
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                Reset temp_lowest and temp_highest for all sensors
 
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                WO
 
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Some chips measure temperature using external thermistors and an ADC, and
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report the temperature measurement as a voltage. Converting this voltage
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back to a temperature (or the other way around for limits) requires
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                                Unit: microJoule
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                                RO
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**********
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* Alarms *
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**********
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in[0-*]_min_alarm
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in[0-*]_max_alarm
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fan[1-*]_min_alarm
 
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fan[1-*]_max_alarm
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temp[1-*]_min_alarm
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temp[1-*]_max_alarm
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temp[1-*]_crit_alarm
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                RW
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***********************
 
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* Intrusion detection *
 
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***********************
 
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intrusion[0-*]_alarm
 
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                Chassis intrusion detection
 
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                0: OK
 
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                1: intrusion detected
 
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                RW
 
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                Contrary to regular alarm flags which clear themselves
 
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                automatically when read, this one sticks until cleared by
 
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                the user. This is done by writing 0 to the file. Writing
 
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                other values is unsupported.
 
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intrusion[0-*]_beep
 
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                Chassis intrusion beep
 
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                0: disable
 
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                1: enable
 
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                RW
 
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sysfs attribute writes interpretation
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-------------------------------------
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