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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-26 18:55:08 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-07-18 19:38:27 +0200 |
| commit | 6c6a6ee93999528c989438482e2d5cdcdd6bb688 (patch) | |
| tree | a26e234f0ec266a02af8815caa738df47cc26205 /Documentation/ABI | |
| parent | iio: Be consistent with allocation result tests. (diff) | |
| download | linux-6c6a6ee93999528c989438482e2d5cdcdd6bb688.tar.xz linux-6c6a6ee93999528c989438482e2d5cdcdd6bb688.zip | |
iio: ABI: temperature: Unify documentation for thermocouple fault detection.
Kernel documentation for a given ABI element should not be duplicated
in multiple files, so pull them into one higher level documentation file.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Navin Sankar Velliangiri <navin@linumiz.com>
Cc: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/20220626165511.602202-2-jic23@kernel.org
Diffstat (limited to 'Documentation/ABI')
3 files changed, 18 insertions, 43 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 deleted file mode 100644 index e5ef6d8e5da1..000000000000 --- a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 +++ /dev/null @@ -1,31 +0,0 @@ -What: /sys/bus/iio/devices/iio:deviceX/fault_oc -KernelVersion: 5.1 -Contact: linux-iio@vger.kernel.org -Description: - Open-circuit fault. The detection of open-circuit faults, - such as those caused by broken thermocouple wires. - Reading returns either '1' or '0'. - - === ======================================================= - '1' An open circuit such as broken thermocouple wires - has been detected. - '0' No open circuit or broken thermocouple wires are detected - === ======================================================= - -What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv -KernelVersion: 5.1 -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 by integrated MOSFETs at the T+ and T- inputs, and the - BIAS output. These MOSFETs turn off when the input voltage is - negative or greater than VDD. - - Reading returns either '1' or '0'. - - === ======================================================= - '1' The input voltage is negative or greater than VDD. - '0' The input voltage is positive and less than VDD (normal - state). - === ======================================================= diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 index 4b072da92218..349089e4f2d6 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 +++ b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 @@ -1,15 +1,3 @@ -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 diff --git a/Documentation/ABI/testing/sysfs-bus-iio-thermocouple b/Documentation/ABI/testing/sysfs-bus-iio-thermocouple new file mode 100644 index 000000000000..01259df297ca --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-thermocouple @@ -0,0 +1,18 @@ +What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv +KernelVersion: 5.1 +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. The device can also detect if such a condition occurs. + + Reading returns '1' if input voltage is negative or greater + than VDD, otherwise '0'. + +What: /sys/bus/iio/devices/iio:deviceX/fault_oc +KernelVersion: 5.1 +Contact: linux-iio@vger.kernel.org +Description: + Open-circuit fault. The detection of open-circuit faults, + such as those caused by broken thermocouple wires. + Reading returns '1' if fault, '0' otherwise. |