Description¶

This driver implements support for Texas Instruments TMP464 and TMP468temperature sensor chips. TMP464 provides one local and four remotesensors. TMP468 provides one local and eight remote sensors.Temperature is measured in degrees Celsius. The chips are wired overI2C/SMBus and specified over a temperature range of -40 to +125 degreesCelsius. Resolution for both the local and remote channels is 0.0625degree C.

The chips support only temperature measurements. The driver exportstemperature values, limits, and alarms via the following sysfs files:

temp[1-9]_input

temp[1-9]_max

temp[1-9]_max_hyst

temp[1-9]_max_alarm

temp[1-9]_crit

temp[1-9]_crit_alarm

temp[1-9]_crit_hyst

temp[2-9]_offset

temp[2-9]_fault

Each sensor can be individually disabled via Devicetree or from sysfsvia:

temp[1-9]_enable

If labels were specified in Devicetree, additional sysfs files willbe present:

temp[1-9]_label

The update interval is configurable with the following sysfs attribute.

update_interval