What:		/sys/bus/iio/devices/iio:deviceX/sensor_sensitivity
Date:		January 2017
KernelVersion:	4.11
Contact:	linux-iio@vger.kernel.org
Description:
		Show or set the gain boost of the amp, from 0-31 range.
		default 31

What:		/sys/bus/iio/devices/iio:deviceX/sensor_max_range
Date:		January 2017
KernelVersion:	4.11
Contact:	linux-iio@vger.kernel.org
Description:
                Show or set the maximum range between the sensor and the
		first object echoed in meters. Default value is 6.020.
		This setting limits the time the driver is waiting for a
		echo.
		Showing the range of available values is represented as the
		minimum value, the step and the maximum value, all enclosed
		in square brackets.
		Example:
		[0.043 0.043 11.008]