max31730.rst 1.5 KB

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