Kernel driver lm92

Supported chips:

• National Semiconductor / Texas Instruments LM92

  Prefix: ‘lm92’

  Addresses scanned: I2C 0x48 - 0x4b

  Datasheet: https://www.ti.com/lit/gpn/LM92

• National Semiconductor / Texas Instruments LM76

  Prefix: ‘lm92’

  Addresses scanned: none, must be instantiated explicitly

  Datasheet: https://www.ti.com/lit/gpn/LM76

• Maxim /Analog Devices MAX6633/MAX6634/MAX6635

  Prefix: ‘max6635’

  Addresses scanned: none, must be instantiated explicitly

  Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max6633-max6635.pdf

Authors:

• Abraham van der Merwe <abraham@2d3d.co.za>

• Jean Delvare <jdelvare@suse.de>

Description

This driver implements support for the National Semiconductor / Texas Instruments LM92 temperature sensor.

Each LM92 temperature sensor supports a single temperature sensor. There are alarms for high, low, and critical thresholds. There’s also an hysteresis to control the thresholds for resetting alarms.

The driver also supports LM76 and Maxim MAX6633/MAX6634/MAX6635, which are mostly compatible but do not have a vendor ID register and therefore must be instantiated explicitly.