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Kernel driver tmp401
Supported chips:
* Texas Instruments TMP401
Prefix: 'tmp401'
Addresses scanned: I2C 0x4c
* Texas Instruments TMP411
Prefix: 'tmp411'
Addresses scanned: I2C 0x4c, 0x4d, 0x4e
* Texas Instruments TMP431
Prefix: 'tmp431'
Addresses scanned: I2C 0x4c, 0x4d
* Texas Instruments TMP432
Prefix: 'tmp432'
Addresses scanned: I2C 0x4c, 0x4d
* Texas Instruments TMP435
Prefix: 'tmp435'
Addresses scanned: I2C 0x48 - 0x4f
- Hans de Goede <>
- Andre Prendel <>
This driver implements support for Texas Instruments TMP401, TMP411,
TMP431, TMP432, and TMP435 chips. These chips implement one or two
remote and one local temperature sensors. Temperature is measured in degrees
Celsius. Resolution of the remote sensor is 0.0625 degree. Local
sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
supported by the driver so far, so using the default resolution of 0.5
The driver provides the common sysfs-interface for temperatures (see
Documentation/hwmon/sysfs-interface.rst under Temperatures).
The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
some additional features.
* Minimum and Maximum temperature measured since power-on, chip-reset
Exported via sysfs attributes tempX_lowest and tempX_highest.
* Reset of historical minimum/maximum temperature measurements
Exported via sysfs attribute temp_reset_history. Writing 1 to this
file triggers a reset.
TMP432 is compatible with TMP401 and TMP431. It supports two external
temperature sensors.