linux-stable/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865
Navin Sankar Velliangiri e112dc4e18 iio: temperature: Add MAX31865 RTD Support
This patch adds support for Maxim MAX31865 RTD temperature
sensor support.

More information can be found in:
https://datasheets.maximintegrated.com/en/ds/MAX31865.pdf

Signed-off-by: Navin Sankar Velliangiri <navin@linumiz.com>
Link: https://lore.kernel.org/r/20210824050123.71289-1-navin@linumiz.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-09-14 12:00:33 +01:00

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What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv
KernelVersion: 5.11
Contact: linux-iio@vger.kernel.org
Description:
Overvoltage or Undervoltage Input fault. The internal circuitry
is protected from excessive voltages applied to the thermocouple
cables at FORCE+, FORCE2, RTDIN+ & RTDIN-. This circuitry turn
off when the input voltage is negative or greater than VDD.
Reading returns '1' if input voltage is negative or greater
than VDD, otherwise '0'.
What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
KernelVersion: 5.11
Contact: linux-iio@vger.kernel.org
Description:
Notch frequency in Hz for a noise rejection filter. Used i.e for
line noise rejection.
Valid notch filter values are 50 Hz and 60 Hz.