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What:		/sys/bus/iio/devices/iio:deviceX/start_cleaning
Date:		December 2018
KernelVersion:	4.22
Contact:	linux-iio@vger.kernel.org
Description:
		Writing 1 starts sensor self cleaning. Internal fan accelerates
		to its maximum speed and keeps spinning for about 10 seconds in
		order to blow out accumulated dust.

What:		/sys/bus/iio/devices/iio:deviceX/cleaning_period
Date:		January 2019
KernelVersion:	5.1
Contact:	linux-iio@vger.kernel.org
Description:
		Sensor is capable of triggering self cleaning periodically.
		Period can be changed by writing a new value here. Upon reading
		the current one is returned. Units are seconds.

		Writing 0 disables periodical self cleaning entirely.

What:		/sys/bus/iio/devices/iio:deviceX/cleaning_period_available
Date:		January 2019
KernelVersion:	5.1
Contact:	linux-iio@vger.kernel.org
Description:
		The range of available values in seconds represented as the
		minimum value, the step and the maximum value, all enclosed in
		square brackets.