This procedure works with fully virtualized VMs. I would assume it works with paravirtualized VMs as well…
Shut down and power off your VM
Unplug and re-plug your USB device to see what it appears as in dmesg,then run
dmesg | grep ^usb
See these lines?:
usb 3-2:USB disconnect,address 7
usb 3-2:new low speed USB device using uhci_hcd and address 8
usb 3-2:configuration #1 chosen from 1 choice
This indicates that it is connected to Bus 003 as Device 008. Now run this:
lsusb
Now look a device at Bus 003 Device 008:
Bus 003 Device 008:ID 04b9:0300 Rainbow Technologies,Inc.
Note the ID…
04b9:0300
Open the config.sxp file for the domain,usually located at:
"/var/lib/xend/domains//config.sxp"
Look for a section similar to this:
(platform
((usb 1)
(device_model /usr/lib64/xen/bin/qemu-dm)
(boot c)
(rtc_timeoffset -18008)
(pae 1)
(apic 1)
(localtime 1)
(acpi 1)
)
)
Add your USB device:
(platform
((usb 1)
(device_model /usr/lib64/xen/bin/qemu-dm)
(boot c)
(rtc_timeoffset -18008)
(pae 1)
(apic 1)
(localtime 1)
(acpi 1)
(usbdevice host:04b9:0300)
)
)
Restart xend:
/etc/init.d/xend restart
Start your VM