Kernel driver tmp102

Supported chips:

• Texas Instruments TMP102

  Prefix: ‘tmp102’

  Addresses scanned: none

  Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp102.html

• Texas Instruments TMP110

  Prefix: ‘tmp110’

  Addresses scanned: none

  Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp110.html

• Texas Instruments TMP113

  Prefix: ‘tmp113’

  Addresses scanned: none

  Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp113.html

Author:

Steven King <sfking@fdwdc.com>

Description

The Texas Instruments TMP102 implements one temperature sensor. Limits can be set through the Overtemperature Shutdown register and Hysteresis register. The sensor is accurate to 0.5 degree over the range of -25 to +85 C, and to 1.0 degree from -40 to +125 C. Resolution of the sensor is 0.0625 degree. The operating temperature has a minimum of -55 C and a maximum of +150 C.

The TMP102 has a programmable update rate that can select between 8, 4, 1, and 0.5 Hz. (Currently the driver only supports the default of 4 Hz).

The TMP110 and TMP113 are software compatible with TMP102, but have different accuracy (maximum error) specifications. The TMP110 has an accuracy (maximum error) of 1.0 degree, TMP113 has an accuracy (maximum error) of 0.3 degree, while TMP102 has an accuracy (maximum error) of 2.0 degree.

The driver provides the common sysfs-interface for temperatures (see Naming and data format standards for sysfs files under Temperatures).