LXR linux/Documentation/hwmon/tmp401.rst

   1Kernel driver tmp401
   2====================
   3
   4Supported chips:
   5
   6  * Texas Instruments TMP401
   7
   8    Prefix: 'tmp401'
   9
  10    Addresses scanned: I2C 0x4c
  11
  12    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
  13
  14  * Texas Instruments TMP411
  15
  16    Prefix: 'tmp411'
  17
  18    Addresses scanned: I2C 0x4c, 0x4d, 0x4e
  19
  20    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
  21
  22  * Texas Instruments TMP431
  23
  24    Prefix: 'tmp431'
  25
  26    Addresses scanned: I2C 0x4c, 0x4d
  27
  28    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
  29
  30  * Texas Instruments TMP432
  31
  32    Prefix: 'tmp432'
  33
  34    Addresses scanned: I2C 0x4c, 0x4d
  35
  36    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
  37
  38  * Texas Instruments TMP435
  39
  40    Prefix: 'tmp435'
  41
  42    Addresses scanned: I2C 0x48 - 0x4f
  43
  44    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html
  45
  46  * Texas Instruments TMP461
  47
  48    Prefix: 'tmp461'
  49
  50    Datasheet: https://www.ti.com/product/tmp461
  51
  52
  53
  54Authors:
  55
  56        - Hans de Goede <hdegoede@redhat.com>
  57        - Andre Prendel <andre.prendel@gmx.de>
  58
  59Description
  60-----------
  61
  62This driver implements support for Texas Instruments TMP401, TMP411,
  63TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two
  64remote and one local temperature sensors. Temperature is measured in degrees
  65Celsius. Resolution of the remote sensor is 0.0625 degree. Local
  66sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
  67supported by the driver so far, so using the default resolution of 0.5
  68degree).
  69
  70The driver provides the common sysfs-interface for temperatures (see
  71Documentation/hwmon/sysfs-interface.rst under Temperatures).
  72
  73The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
  74some additional features.
  75
  76* Minimum and Maximum temperature measured since power-on, chip-reset
  77
  78  Exported via sysfs attributes tempX_lowest and tempX_highest.
  79
  80* Reset of historical minimum/maximum temperature measurements
  81
  82  Exported via sysfs attribute temp_reset_history. Writing 1 to this
  83  file triggers a reset.
  84
  85TMP432 is compatible with TMP401 and TMP431. It supports two external
  86temperature sensors.
  87
  88TMP461 is compatible with TMP401. It supports offset correction
  89that is applied to the remote sensor.
  90
  91* Sensor offset values are temperature values
  92
  93  Exported via sysfs attribute tempX_offset
  94