Documentation/hwmon/tmp401

   1 Kernel driver tmp401
   2 ====================
   3
   4 Supported chips:
   5   * Texas Instruments TMP401
   6     Prefix: 'tmp401'
   7     Addresses scanned: I2C 0x4c
   8     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
   9   * Texas Instruments TMP411
  10     Prefix: 'tmp411'
  11     Addresses scanned: I2C 0x4c, 0x4d, 0x4e
  12     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
  13   * Texas Instruments TMP431
  14     Prefix: 'tmp431'
  15     Addresses scanned: I2C 0x4c, 0x4d
  16     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
  17   * Texas Instruments TMP432
  18     Prefix: 'tmp432'
  19     Addresses scanned: I2C 0x4c, 0x4d
  20     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
  21
  22 Authors:
  23          Hans de Goede <hdegoede@redhat.com>
  24          Andre Prendel <andre.prendel@gmx.de>
  25
  26 Description
  27 -----------
  28
  29 This driver implements support for Texas Instruments TMP401, TMP411,
  30 TMP431, and TMP432 chips. These chips implement one or two remote and
  31 one local temperature sensors. Temperature is measured in degrees
  32 Celsius. Resolution of the remote sensor is 0.0625 degree. Local
  33 sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
  34 supported by the driver so far, so using the default resolution of 0.5
  35 degree).
  36
  37 The driver provides the common sysfs-interface for temperatures (see
  38 Documentation/hwmon/sysfs-interface under Temperatures).
  39
  40 The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
  41 some additional features.
  42
  43 * Minimum and Maximum temperature measured since power-on, chip-reset
  44
  45   Exported via sysfs attributes tempX_lowest and tempX_highest.
  46
  47 * Reset of historical minimum/maximum temperature measurements
  48
  49   Exported via sysfs attribute temp_reset_history. Writing 1 to this
  50   file triggers a reset.
  51
  52 TMP432 is compatible with TMP401 and TMP431. It supports two external
  53 temperature sensors.