| 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 |