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1915fb70fa
Add documentation for the tmp421 driver. Signed-off-by: Andre Prendel <andre.prendel@gmx.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
1.2 KiB
1.2 KiB
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