1*4882a593SmuzhiyunWhat: /sys/bus/iio/devices/iio:deviceX/fault_oc 2*4882a593SmuzhiyunKernelVersion: 5.1 3*4882a593SmuzhiyunContact: linux-iio@vger.kernel.org 4*4882a593SmuzhiyunDescription: 5*4882a593Smuzhiyun Open-circuit fault. The detection of open-circuit faults, 6*4882a593Smuzhiyun such as those caused by broken thermocouple wires. 7*4882a593Smuzhiyun Reading returns either '1' or '0'. 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun === ======================================================= 10*4882a593Smuzhiyun '1' An open circuit such as broken thermocouple wires 11*4882a593Smuzhiyun has been detected. 12*4882a593Smuzhiyun '0' No open circuit or broken thermocouple wires are detected 13*4882a593Smuzhiyun === ======================================================= 14*4882a593Smuzhiyun 15*4882a593SmuzhiyunWhat: /sys/bus/iio/devices/iio:deviceX/fault_ovuv 16*4882a593SmuzhiyunKernelVersion: 5.1 17*4882a593SmuzhiyunContact: linux-iio@vger.kernel.org 18*4882a593SmuzhiyunDescription: 19*4882a593Smuzhiyun Overvoltage or Undervoltage Input Fault. The internal circuitry 20*4882a593Smuzhiyun is protected from excessive voltages applied to the thermocouple 21*4882a593Smuzhiyun cables by integrated MOSFETs at the T+ and T- inputs, and the 22*4882a593Smuzhiyun BIAS output. These MOSFETs turn off when the input voltage is 23*4882a593Smuzhiyun negative or greater than VDD. 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun Reading returns either '1' or '0'. 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun === ======================================================= 28*4882a593Smuzhiyun '1' The input voltage is negative or greater than VDD. 29*4882a593Smuzhiyun '0' The input voltage is positive and less than VDD (normal 30*4882a593Smuzhiyun state). 31*4882a593Smuzhiyun === ======================================================= 32