Matthias Henze (L) wrote:
Hi,
finally I've tried to connect a USB scanner to a KVM VM. I've done so by
adding
hostusb: 04a9:1606
to the VMs conf. The scanner is detected by Windows XP and at first it
seemed to work. It scanns but then "CapturePerfect" hangs for ever.
lsusb reports:
Bus 002 Device 005: ID 04a9:1606 Canon, Inc.
and "info usb":
Device 0.1, Speed 12 Mb/s, Product QEMU USB Tablet
Device 0.3, Speed 12 Mb/s, Product QEMU USB Hub
Device 0.2, Speed 480 Mb/s, Product CANON DR-5010C
and "info usbhost":
Device 1.1, speed 480 Mb/s
Hub: USB device 1d6b:0002, EHCI Host Controller
Device 2.1, speed 480 Mb/s
Hub: USB device 1d6b:0002, EHCI Host Controller
Device 3.1, speed 12 Mb/s
Hub: USB device 1d6b:0001, UHCI Host Controller
Device 4.1, speed 12 Mb/s
Hub: USB device 1d6b:0001, UHCI Host Controller
Device 5.1, speed 12 Mb/s
Hub: USB device 1d6b:0001, UHCI Host Controller
Device 6.1, speed 12 Mb/s
Hub: USB device 1d6b:0001, UHCI Host Controller
Device 7.1, speed 12 Mb/s
Hub: USB device 1d6b:0001, UHCI Host Controller
Device 8.1, speed 12 Mb/s
Hub: USB device 1d6b:0001, UHCI Host Controller
Device 1.2, speed 480 Mb/s
Hub: USB device 04b4:6560
Device 6.2, speed 12 Mb/s
Class 00: USB device 0000:0000, SE USB Device
Device 8.2, speed 1.5 Mb/s
Class 00: USB device 046a:0101, Wireless Desktop
Device 1.3, speed 480 Mb/s
Class 00: USB device 0bc2:2101, FreeAgent Go
Device 1.4, speed 480 Mb/s
Class 00: USB device 0bc2:2101, FreeAgent Go
Device 2.5, speed 480 Mb/s
Class 00: USB device 04a9:1606, CANON DR-5010C
Auto filters:
Device *.* ID 04a9:1606
Can some one pelase help ? This ist a show stopper for this project ...
TIA
Matthias
Hi Matthias,
I experienced a similar behaviour with Epson and Canon USB Printers. there
the ink fill status readout causes a complete hang of the software (Windows
still operational). It seems to be related with USB 2.0 devices. An older
USB 1.1 HP Printer works slow but fine.
Please check dmesg of the host system, there you should see a lot of USB
info messages after plugging in the device.
If you get a BSOD in XP when shutting down Windows or when removing the USB
Scanner then it is exactly the same issue that I have. It seems (from my
point of view) to be related with the KVM-USB virtualization. I could
reduce some of the BSOD's by forcing the host USB system to fall back to
USB 1.x (switch in BIOS), but printing with the 2.0 devices was still not
possible!
I have currently no real idea how to solve the issue - additionally the
transfer rates of USB are horribly - I do not get more than ~ 64K/sec.
If there are improvements on that somewhere "uncomitted" I would like to
try them out.
Best regards,
Erik
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