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iordan iordanov authored
by passing an open file descriptor in order to support the modern Android USB device permissioning scheme. During the process, a handle obtained by a call to libusb_wrap_sys_device() is stored in the SpiceUsbDevice instance. A call to libusb_open() is skipped if there is already a handle present in the SpiceUsbDevice instance. Finally, on Android, the option LIBUSB_OPTION_NO_DEVICE_DISCOVERY must be set prior to the call to libusb_init() as per libusb documentation.
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