iio: humidity: hdc3020: add threshold events support

Browse source

Add threshold events support for temperature and relative humidity. To
enable them the higher and lower threshold registers must be programmed
and the higher threshold must be greater then or equal to the lower
threshold. Otherwise the event is disabled. Invalid hysteresis values
are ignored by the device. There is no further configuration possible.

Tested by setting thresholds/hysteresis and turning the heater on/off.
Used iio_event_monitor in tools/iio to catch events while constantly
displaying temperature and humidity values.

Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Tested-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240214085350.19382-4-dima.fedrau@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

...

This commit is contained in:

Dimitri Fedrau 2024-02-14 09:53:45 +01:00 • committed by Jonathan Cameron

parent 9f9bfae410

commit 3ad0e7e5f0

1 changed files with 247 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

247

drivers/iio/humidity/hdc3020.c

View file