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: https://www.ti.com/product/tmp441 * Texas Instruments TMP442 Prefix: 'tmp442' Addresses scanned: I2C 0x4c and 0x4d Datasheet: https://www.ti.com/product/tmp442 Authors: Andre Prendel 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**