LXR linux/Documentation/hwmon/tmp421.rst

   1Kernel driver tmp421
   2====================
   3
   4Supported chips:
   5
   6  * Texas Instruments TMP421
   7
   8    Prefix: 'tmp421'
   9
  10    Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
  11
  12    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
  13
  14  * Texas Instruments TMP422
  15
  16    Prefix: 'tmp422'
  17
  18    Addresses scanned: I2C 0x4c, 0x4d, 0x4e and 0x4f
  19
  20    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
  21
  22  * Texas Instruments TMP423
  23
  24    Prefix: 'tmp423'
  25
  26    Addresses scanned: I2C 0x4c and 0x4d
  27
  28    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
  29
  30  * Texas Instruments TMP441
  31
  32    Prefix: 'tmp441'
  33
  34    Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
  35
  36    Datasheet: https://www.ti.com/product/tmp441
  37
  38  * Texas Instruments TMP442
  39
  40    Prefix: 'tmp442'
  41
  42    Addresses scanned: I2C 0x4c and 0x4d
  43
  44    Datasheet: https://www.ti.com/product/tmp442
  45
  46Authors:
  47
  48        Andre Prendel <andre.prendel@gmx.de>
  49
  50Description
  51-----------
  52
  53This driver implements support for Texas Instruments TMP421, TMP422,
  54TMP423, TMP441, and TMP442 temperature sensor chips. These chips
  55implement one local and up to one (TMP421, TMP441), up to two (TMP422,
  56TMP442) or up to three (TMP423) remote sensors. Temperature is measured
  57in degrees Celsius. The chips are wired over I2C/SMBus and specified
  58over a temperature range of -40 to +125 degrees Celsius. Resolution
  59for both the local and remote channels is 0.0625 degree C.
  60
  61The chips support only temperature measurement. The driver exports
  62the temperature values via the following sysfs files:
  63
  64**temp[1-4]_input**
  65
  66**temp[2-4]_fault**
  67