What:		/sys/class/mux/
Date:		April 2017
KernelVersion:	4.13
Contact:	Peter Rosin <peda@axentia.se>
Description:
		The mux/ class sub-directory belongs to the Generic MUX
		Framework and provides a sysfs interface for using MUX
		controllers.

What:		/sys/class/mux/muxchipN/
Date:		April 2017
KernelVersion:	4.13
Contact:	Peter Rosin <peda@axentia.se>
Description:
		A /sys/class/mux/muxchipN directory is created for each
		probed MUX chip where N is a simple enumeration.