Kernel driver max31790

Supported chips:

Author: Guenter Roeck <linux@roeck-us.net>

Description

This driver implements support for Maxim MAX31730.

The MAX31730 temperature sensor monitors its own temperature and the temperatures of three external diode-connected transistors. The operating supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates for high series resistance in circuit-board traces and the external thermal diode, while beta compensation corrects for temperature-measurement errors due to low-beta sensing transistors.

Sysfs entries

temp[1-4]_enable

RW

Temperature enable/disable Set to 0 to enable channel, 0 to disable

temp[1-4]_input

RO

Temperature input

temp[2-4]_fault

RO

Fault indicator for remote channels

temp[1-4]_max

RW

Maximum temperature

temp[1-4]_max_alarm

RW

Maximum temperature alarm

temp[1-4]_min

RW

Minimum temperature. Common for all channels. Only temp1_min is writeable.

temp[1-4]_min_alarm

RO

Minimum temperature alarm

temp[2-4]_offset

RW

Temperature offset for remote channels