diff options
| author | Navin Sankar Velliangiri <navin@linumiz.com> | 2021-08-24 10:31:23 +0530 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-09-14 12:00:33 +0100 |
| commit | e112dc4e18eafc5ee9d5700e3c059ac9897ae2a1 (patch) | |
| tree | 35b78a0c9146fe3b7611b2aad02d857f76d58f6e /Documentation | |
| parent | b0fc3f1dbe2a577c22dc52900856597ad5ea6bb3 (diff) | |
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 new file mode 100644 index 000000000000..4b072da92218 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 @@ -0,0 +1,20 @@ +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. |