Using usbdview, all 3 errant devices are not present. At the same time it may likely be a clue to the what is going on. Where or why libusb is complaining about this device is a mystery to me. The first line (VID 046D) is a USB flash drive that was unplugged during a PRIOR power cycle of the box. I have libusb debugging turned on (hence the first 3 lines) Under windows 10, I get a duplicate entry of the old device in my libusb_get_device_list structure.īelow is a data dump. Under windows 7, and the virus known as windows 8, this works fine. The device soft disconnects from the USB bus, changes part of it's descriptor (the serial number), waits 500ms (or 2seconds, doesn't help the issue) and then reconnects. The unit has a feature in which I send a command to the winusb interface to reconfigure it's usb serial#. We have a few hundred devices running for three ish years now, with billions of libusb operations. ![]() ![]() I have a custom composite USB device with usbser, winusb, usbstor interfaces.
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