Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:		/sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Date:		June 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) KernelVersion:	5.8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Contact:	linux-iio@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 		Contaminants build-up in the measurement chamber or optical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 		elements deterioration leads to sensor drift.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 		One can compensate for sensor drift by using automatic self
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 		calibration procedure (asc).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		Writing 1 or 0 to this attribute will respectively activate or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		deactivate asc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		Upon reading current asc status is returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) Date:		June 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) KernelVersion:	5.8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) Contact:	linux-iio@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		Contaminants build-up in the measurement chamber or optical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		elements deterioration leads to sensor drift.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		One can compensate for sensor drift by using forced
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		recalibration (frc). This is useful in case there's known
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		co2 reference available nearby the sensor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		Picking value from the range [400 1 2000] and writing it to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		sensor will set frc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		Upon reading current frc value is returned. Note that after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		power cycling default value (i.e 400) is returned even though
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		internally sensor had recalibrated itself.