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 0.25 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.
sysfs-Interface¶
The following list includes the sysfs attributes that the driver provides, their permissions and a short description:
Name |
Perm |
Description |
|---|---|---|
temp1_input: |
RO |
Temperature input |
temp1_label: |
RO |
Descriptive name for the sensor |
temp1_max: |
RW |
Maximum temperature |
temp1_max_hyst: |
RW |
Maximum hysteresis temperature |
update_interval |
RW |
Update conversions interval in milliseconds |