What: /sys/class/leds/<led>/ports/<port>
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Date: September 2016
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KernelVersion: 4.9
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Contact: linux-leds@vger.kernel.org
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linux-usb@vger.kernel.org
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Description:
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Every dir entry represents a single USB port that can be
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selected for the USB port trigger. Selecting ports makes trigger
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observing them for any connected devices and lighting on LED if
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there are any.
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Echoing "1" value selects USB port. Echoing "0" unselects it.
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Current state can be also read.
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