Comment 43 for bug 156085

Having the same problem. I have a CanoScan LiDE that I need to use and even with the patch kvm/qemu refuses to see it.

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helsing:~$ sudo qemu -M pc -m 1256 -kernel-kqemu -usbdevice host:04a9:2225 -usbdevice host:04e8:326c -usb -hda /home/hamid/helsing-windows -localtime -cdrom /dev/cdrom -net nic,vlan=0 -net user,vlan=0,hostname=emu -smb /media/ERIS -boot c
usb_linux_update_endp_table: Broken pipe
Warning: could not add USB device host:04a9:2225
usb_linux_update_endp_table: Broken pipe
Warning: could not add USB device host:04e8:326c

helsing:~$ ls -la /proc/bus/usb
total 0
drwxr-xr-x 5 root root 120 2008-07-29 09:34 .
dr-xr-xr-x 5 root root 0 2008-07-29 09:34 ..
drwxr-xr-x 2 root root 80 2008-07-29 02:33 001
drwxr-xr-x 2 root root 80 2008-07-29 11:17 002
lrwxrwxrwx 1 root root 14 2008-07-29 09:34 devices -> .usbfs/devices
drwxr-xr-x 4 root root 0 2008-07-29 02:33 .usbfs

helsing:~$ cat /proc/bus/usb/devices

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=10
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.24-19-generic ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=0000:00:0b.1
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms

T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs= 1
P: Vendor=04a9 ProdID=2225 Rev= 0.00
S: Manufacturer=Canon
S: Product=CanoScan
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh=10
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.24-19-generic ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:0b.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms

T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1
P: Vendor=04e8 ProdID=326c Rev= 1.00
S: Manufacturer=Samsung
S: Product=Samsung ML-2010
S: SerialNumber=3A61BKCY919606V.
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
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