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kernel/linux-rt-4.4.41/Documentation/hwmon/tmp421 1.54 KB
5113f6f70   김현기   kernel add
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  Kernel driver tmp421
  ====================
  
  Supported chips:
    * Texas Instruments TMP421
      Prefix: 'tmp421'
      Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
      Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
    * Texas Instruments TMP422
      Prefix: 'tmp422'
      Addresses scanned: I2C 0x4c, 0x4d, 0x4e and 0x4f
      Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
    * Texas Instruments TMP423
      Prefix: 'tmp423'
      Addresses scanned: I2C 0x4c and 0x4d
      Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
    * Texas Instruments TMP441
      Prefix: 'tmp441'
      Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
      Datasheet: http://www.ti.com/product/tmp441
    * Texas Instruments TMP442
      Prefix: 'tmp442'
      Addresses scanned: I2C 0x4c and 0x4d
      Datasheet: http://www.ti.com/product/tmp442
  
  Authors:
  	Andre Prendel <andre.prendel@gmx.de>
  
  Description
  -----------
  
  This driver implements support for Texas Instruments TMP421, TMP422,
  TMP423, TMP441, and TMP442 temperature sensor chips. These chips
  implement one local and up to one (TMP421, TMP441), up to two (TMP422,
  TMP442) or up to three (TMP423) remote sensors. Temperature is measured
  in degrees Celsius. The chips are wired over I2C/SMBus and specified
  over a temperature range of -40 to +125 degrees Celsius. Resolution
  for both the local and remote channels is 0.0625 degree C.
  
  The chips support only temperature measurement. The driver exports
  the temperature values via the following sysfs files:
  
  temp[1-4]_input
  temp[2-4]_fault