How to identify a usb device which connected to a fixed port?
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The requirement is, now we have several usb controllers, ... suppose as 4, now we want test different types of devices on them, certainly I can get the "WM_DEVICECHANGE" message or something else to handle device remove/add events, then my problem is, how to know the which usb controller and port the newly added/removed device conntected to? and another question is though I can enum all the devices via WMI, I don't konw how to get a exclusive id for each, currently I only use usb controller and general usb devices like storage and camera. can tell? Thanks Clark Nu