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- 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 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
- * Texas Instruments TMP423
- Prefix: 'tmp423'
- Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
- Authors:
- Andre Prendel <andre.prendel@gmx.de>
- Description
- -----------
- This driver implements support for Texas Instruments TMP421, TMP422
- and TMP423 temperature sensor chips. These chips implement one local
- and up to one (TMP421), up to two (TMP422) 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
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