sysfs-bus-iio-temperature-max31856 (1254B)
1What: /sys/bus/iio/devices/iio:deviceX/fault_oc 2KernelVersion: 5.1 3Contact: linux-iio@vger.kernel.org 4Description: 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 === ======================================================= 10 '1' An open circuit such as broken thermocouple wires 11 has been detected. 12 '0' No open circuit or broken thermocouple wires are detected 13 === ======================================================= 14 15What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv 16KernelVersion: 5.1 17Contact: linux-iio@vger.kernel.org 18Description: 19 Overvoltage or Undervoltage Input Fault. The internal circuitry 20 is protected from excessive voltages applied to the thermocouple 21 cables by integrated MOSFETs at the T+ and T- inputs, and the 22 BIAS output. These MOSFETs turn off when the input voltage is 23 negative or greater than VDD. 24 25 Reading returns either '1' or '0'. 26 27 === ======================================================= 28 '1' The input voltage is negative or greater than VDD. 29 '0' The input voltage is positive and less than VDD (normal 30 state). 31 === =======================================================