Have you tried using xport, or devcon to disable the device before hibernation then reenable upon resume? This may help: http://www.mp3car.com/vbulletin/faq-...de-devcon.html
On resume from hibernate, my Silabs USB radio is not recognized. It was there before the hibernation but gone (not even in device manager) after. Anyone have any ideas? I have searched the forums but can't find anything specific to this problem. Thanks for the help.