Changes

USB devices which are connected are shown with a ''vendor:product'' value pair. Devices with ''0000:0000'' represent USB ports where no device is connected or a device is connected but currently powered off. A list of device ID strings is contained in the ''/usr/share/hwdata/usb.ids'' file). If no matching ID is found in the file this field is left blank. This file is constantly updated so it may be worth downloading the latest release from [http://www.linux-usb.org/usb.ids http://www.linux-usb.org/usb.ids].

If, even with the latest ''usb.ids'' file, you are unsure which ID relates to the device you wish to add to your Xen HVM guest another option is to power off or unplug the device in question, run ''lsusb'' again. The device which is no longer listed is the device you are looking for.