Hello,
I want to attach a usb device to my xpdomU and get the following error:
debDom0:/var/log/xen# xm usb-list winxp1t.computadora.nl
Idx BE  state usb-ver  BE-path
0   0   1     USB2.0  /local/domain/0/backend/vusb/8/0
port 1:
port 2:
port 3:
port 4:
debDom0:/var/log/xen# xm usb-list-assignable-devices
1-2          : ID 0b38:0003 Virtual USB MULTIMEDIA KEYBOARD
1-7          : ID 0566:3006 Monterey International Corp.
2-5          : ID 1307:0190 USBest Technology USB Mass Storage Device
2-9          : ID 04a9:172e Canon MP630 series
debDom0:/var/log/xen# xm usb-attach winxp1t.computadora.nl 0 1 2-9
Unexpected error: <class
''xen.util.vusb_util.UsbDeviceParseError''>
Please report to xen-devel@lists.xensource.com
Traceback (most recent call last):
  File "/usr/lib/xen-4.0/bin/xm", line 8, in <module>
    main.main(sys.argv)
  File "/usr/lib/xen-4.0/lib/python/xen/xm/main.py", line 3620, in
main
    _, rc = _run_cmd(cmd, cmd_name, args)
  File "/usr/lib/xen-4.0/lib/python/xen/xm/main.py", line 3644, in
_run_cmd
    return True, cmd(args)
  File "/usr/lib/xen-4.0/lib/python/xen/xm/main.py", line 2868, in
xm_usb_attach
    if vusb_util.bus_is_assigned(bus):
  File "/usr/lib/xen-4.0/lib/python/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: (2-9).
**********************
debDom0:/var/log/xen# uname -a
Linux debDom0 2.6.32-5-xen-amd64 #1 SMP Thu Sep 30 05:47:47 UTC 2010 x86_64
GNU/Linux
debDom0:/var/log/xen# xm info
host                   : debDom0
release                : 2.6.32-5-xen-amd64
version                : #1 SMP Thu Sep 30 05:47:47 UTC 2010
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 1809
hw_caps                :
178bf3ff:ebd3fbff:00000000:00000010:00002001:00000000:0000001f:00000000
virt_caps              : hvm
total_memory           : 4095
free_memory            : 8
node_to_cpu            : node0:0-1
node_to_memory         : node0:8
node_to_dma32_mem      : node0:8
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        :
cc_compiler            : gcc version 4.4.5 20100824 (prerelease) (Debian
4.4.4-11)
cc_compile_by          : waldi
cc_compile_domain      : debian.org
cc_compile_date        : Fri Sep  3 15:38:12 UTC 2010
xend_config_format     : 4
debDom0:/var/log/xen# cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 65
model name      : Dual-Core AMD Opteron(tm) Processor 2210
stepping        : 3
cpu MHz         : 1809.322
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu de tsc msr pae mce cx8 apic mtrr mca cmov pat clflush mmx
fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good
extd_apicid pni cx16 hypervisor lahf_lm cmp_legacy extapic cr8_legacy
bogomips        : 3618.64
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 65
model name      : Dual-Core AMD Opteron(tm) Processor 2210
stepping        : 3
cpu MHz         : 1809.322
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu de tsc msr pae mce cx8 apic mtrr mca cmov pat clflush mmx
fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good
extd_apicid pni cx16 hypervisor lahf_lm cmp_legacy extapic cr8_legacy
bogomips        : 3618.64
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
If you want to know something more please let me know, bye 
Jaap Gerritsen, The Netherlands
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