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windows 8 - How to control power to USB ports using batch - Super User
June 8, 2015 at 12:52:48 GMT+2 - permalink -« Windows itself does not provide a API or option to allow the power pins of USB ports to be switched off. » :)
Donc on dirait que pour allumer / éteindre une LED alakon en USB, bah tu peux pas.- http://superuser.com/questions/715888/how-to-control-power-to-usb-ports-using-batch