[Bug 685096] Re: USB Passthrough not working for Windows 7 guest

[Michal Suchanek]

I can connect to network with qemu 2.0 with and win 7 pro 64bit guest.

qemu-system-x86_64 -machine accel=kvm -smp 2 -m 1024 -net none -device
usb-ehci,id=usb,bus=pci.0,addr=0x4 -device usb-
host,vendorid=0x0b95,productid=0x772b,id=hostdev0,bus=usb.0  -usb
-usbdevice tablet -hda /srv/rhev/virtual.qcow  -soundhw hda -boot c

Bus 007 Device 014: ID 0b95:772b ASIX Electronics Corp.


Unfortunately there is lack of automation and documentation. Ideally you would use something like 
qemu-system-x86_64 -machine accel=kvm -smp 2 -m 1024 -net none -usb2 -usbdevice host:0b95:772b -usbdevice  tablet -hda /srv/rhev/virtual.qcow  -soundhw hda -boot c

Tthe usb device info from Linux should be enough to determine if the
device is to be connected to usb1 or usb2, right?

** Attachment added: "Win 7 device manager"
   https://bugs.launchpad.net/qemu/+bug/685096/+attachment/4129559/+files/screenshot-20140611122419.png

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Title:
  USB Passthrough not working for Windows 7 guest

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