162306a36Sopenharmony_ciWhat:		/sys/class/leds/<led>/ports/<port>
262306a36Sopenharmony_ciDate:		September 2016
362306a36Sopenharmony_ciKernelVersion:	4.9
462306a36Sopenharmony_ciContact:	linux-leds@vger.kernel.org
562306a36Sopenharmony_ci		linux-usb@vger.kernel.org
662306a36Sopenharmony_ciDescription:
762306a36Sopenharmony_ci		Every dir entry represents a single USB port that can be
862306a36Sopenharmony_ci		selected for the USB port trigger. Selecting ports makes trigger
962306a36Sopenharmony_ci		observing them for any connected devices and lighting on LED if
1062306a36Sopenharmony_ci		there are any.
1162306a36Sopenharmony_ci
1262306a36Sopenharmony_ci		Echoing "1" value selects USB port. Echoing "0" unselects it.
1362306a36Sopenharmony_ci		Current state can be also read.
14