Is there a way to detect whether a device is physically connected to a computer, versus an USB over IP connection?
At first glance, libusb offers no way to tell them apart. I am still digging into its code though.
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That libusb does not distinguish them, is a feature of libusb (or USB over ip). To tell them apart, use something low level, like lsusb or /sys/bus/usb – ddbug Aug 22 '17 at 21:05
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actually, libusb has VHHUB in its driver names list; if I remove it then it's considered as an unsupported API: I guess that's exactly what I want. – Masamune Shirow Aug 22 '17 at 21:12
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(that's for VirtualHere only though, so this "solution" is not as complete as I would like it to be...) – Masamune Shirow Aug 22 '17 at 21:53