The TI ADS112C14 ADC has a feature to enable a "burnout" current when
taking a measurement. This can be used to detect open/short circuit
conditions of a connected sensor. However, enabling this affects the
accuracy of the reading. So we add a custom "burnoutraw" attribute for
this. This works like the standard raw attribute to do a direct read
but does so with the burnout current enabled.
If this sounds familiar, it is because we discussed this on a similar
chip recently [1]. And this is why I put the ABI docs in a common ADC
file rather than one specific to this chip.
[1]: https://lore.kernel.org/linux-iio/20260622110223.7e854dde@jic23-huawei/
Signed-off-by: David Lechner (TI) <dlechner@baylibre.com>
---
David Lechner (TI) (2):
iio: adc: ti-ads112c14: add burnout current support
iio: ABI: add sysfs attribute for _burnoutraw
Documentation/ABI/testing/sysfs-bus-iio-adc | 9 ++
drivers/iio/adc/ti-ads112c14.c | 126 ++++++++++++++++++++++++++--
2 files changed, 126 insertions(+), 9 deletions(-)
---
base-commit: 0b5e142ced4bcf20532da051934bd694d1bbd470
change-id: 20260724-iio-adc-ti-ads112c14-burnout-184304669165
prerequisite-change-id: 20260714-iio-adc-ti-ads112c14-buffered-read-41e5d1ca0dc3:v2
prerequisite-patch-id: 8723aa599dcf5b836fb81cf1efb6c9096bf60b7a
prerequisite-patch-id: 12754335ccf210bcdeaa8a5d60b2280618d50993
prerequisite-change-id: 20260724-iio-adc-ti-ads112c14-continuous-mode-dd1580754609:v1
prerequisite-patch-id: 8723aa599dcf5b836fb81cf1efb6c9096bf60b7a
prerequisite-patch-id: 12754335ccf210bcdeaa8a5d60b2280618d50993
prerequisite-patch-id: ed5d4c1628ef60ed542339fe5fb490383ee8074f
prerequisite-patch-id: b92f5609fcf39e958e78b4dd74c3d323ebb6a161
Best regards,
--
David Lechner (TI) <dlechner@baylibre.com>