tmp401 1.8 KB

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