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[Xen-users] USB Passthrough

I'm trying to pass USB devices through to a domU, but I am running in to the following problem:

# xm usb-list-assignable-devices
3-2          : ID 0a81:0101 CHESEN USB Keyboard
4-1          : ID 045e:00dd Microsoft Comfort Curve Keyboard 2000
5-2          : ID 1532:0017 Razer Razer Imperator
8-2          : ID 1267:0210 Logic3 / SpectraVideo plc
[root@normandy ~]# xm usb-attach edi 0 1 3-2
Unexpected error: <class 'xen.util.vusb_util.UsbDeviceParseError'>

Please report to xen-devel@xxxxxxxxxxxxx
Traceback (most recent call last):
  File "/usr/sbin/xm", line 7, in <module>
File "/usr/lib64/python2.6/site-packages/xen/xm/main.py", line 3983, in main
    _, rc = _run_cmd(cmd, cmd_name, args)
File "/usr/lib64/python2.6/site-packages/xen/xm/main.py", line 4007, in _run_cmd
    return True, cmd(args)
File "/usr/lib64/python2.6/site-packages/xen/xm/main.py", line 3046, in xm_usb_attach
    if vusb_util.bus_is_assigned(bus):
File "/usr/lib64/python2.6/site-packages/xen/util/vusb_util.py", line 275, in bus_is_assigned
    raise UsbDeviceParseError("Can't get assignment status: (%s)." % bus)
xen.util.vusb_util.UsbDeviceParseError: vusb: Error parsing USB device info: Can't get assignment status: (3-2).

Am I missing a step here?


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