1Kernel driver max31790
2======================
3
4Supported chips:
5
6  * Maxim MAX31730
7
8    Prefix: 'max31730'
9
10    Addresses scanned: 0x1c, 0x1d, 0x1e, 0x1f, 0x4c, 0x4d, 0x4e, 0x4f
11
12    Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31730.pdf
13
14Author: Guenter Roeck <linux@roeck-us.net>
15
16
17Description
18-----------
19
20This driver implements support for Maxim MAX31730.
21
22The MAX31730 temperature sensor monitors its own temperature and the
23temperatures of three external diode-connected transistors. The operating
24supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates
25for high series resistance in circuit-board traces and the external thermal
26diode, while beta compensation corrects for temperature-measurement
27errors due to low-beta sensing transistors.
28
29
30Sysfs entries
31-------------
32
33=================== == =======================================================
34temp[1-4]_enable    RW Temperature enable/disable
35                       Set to 0 to enable channel, 0 to disable
36temp[1-4]_input     RO Temperature input
37temp[2-4]_fault     RO Fault indicator for remote channels
38temp[1-4]_max       RW Maximum temperature
39temp[1-4]_max_alarm RW Maximum temperature alarm
40temp[1-4]_min       RW Minimum temperature. Common for all channels.
41                       Only temp1_min is writeable.
42temp[1-4]_min_alarm RO Minimum temperature alarm
43temp[2-4]_offset    RW Temperature offset for remote channels
44=================== == =======================================================
45