Documentation/hwmon/max31730.rst

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