Kernel driver max31790¶
Supported chips:
Maxim MAX31730
Prefix: ‘max31730’
Addresses scanned: 0x1c, 0x1d, 0x1e, 0x1f, 0x4c, 0x4d, 0x4e, 0x4f
Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31730.pdf
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 |