Update ALERT active level in all devicetree files. Capture GPIO flags
in static configuration. Add internal API to enable and disable
interrupt, to release the handlers when an alert occurs, and to
re-enable the signal when the handler completes. Check for alerts
received during periods when the interrupt was disabled.
Extend the example to handle both above and below range triggers and
alerts that are present on startup.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Use the new i2c_write_read() wrapper to simplify the code.
Also add several overlays used to test the sensor on a variety of
boards, and conf file support for trigger testing.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Peter Bigot