10f247626SRafał MiłeckiWhat: /sys/class/leds/<led>/ports/<port> 20f247626SRafał MiłeckiDate: September 2016 30f247626SRafał MiłeckiKernelVersion: 4.9 40f247626SRafał MiłeckiContact: linux-leds@vger.kernel.org 50f247626SRafał Miłecki linux-usb@vger.kernel.org 60f247626SRafał MiłeckiDescription: 70f247626SRafał Miłecki Every dir entry represents a single USB port that can be 80f247626SRafał Miłecki selected for the USB port trigger. Selecting ports makes trigger 90f247626SRafał Miłecki observing them for any connected devices and lighting on LED if 100f247626SRafał Miłecki there are any. 1154a19b4dSMauro Carvalho Chehab 120f247626SRafał Miłecki Echoing "1" value selects USB port. Echoing "0" unselects it. 130f247626SRafał Miłecki Current state can be also read. 14