sysfs-bus-iio-temperature-max31856 1.2 KB

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  1. What: /sys/bus/iio/devices/iio:deviceX/fault_oc
  2. KernelVersion: 5.1
  3. Contact: linux-iio@vger.kernel.org
  4. Description:
  5. Open-circuit fault. The detection of open-circuit faults,
  6. such as those caused by broken thermocouple wires.
  7. Reading returns either '1' or '0'.
  8. === =======================================================
  9. '1' An open circuit such as broken thermocouple wires
  10. has been detected.
  11. '0' No open circuit or broken thermocouple wires are detected
  12. === =======================================================
  13. What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv
  14. KernelVersion: 5.1
  15. Contact: linux-iio@vger.kernel.org
  16. Description:
  17. Overvoltage or Undervoltage Input Fault. The internal circuitry
  18. is protected from excessive voltages applied to the thermocouple
  19. cables by integrated MOSFETs at the T+ and T- inputs, and the
  20. BIAS output. These MOSFETs turn off when the input voltage is
  21. negative or greater than VDD.
  22. Reading returns either '1' or '0'.
  23. === =======================================================
  24. '1' The input voltage is negative or greater than VDD.
  25. '0' The input voltage is positive and less than VDD (normal
  26. state).
  27. === =======================================================