[libvirt-users] How to providing virtual USB disk (usb-storage for QEMU) devices to guests?

Hi, I am trying to provide virtual USB disk devices to guests but without success. With QEMU is simple to plug the virtual USB disk with the command: (qemu) drive_add 0 id=my_usb_disk,if=none,file=usbdisk.img OK (qemu) device_add usb-storage,id=my_usb_disk,drive=my_usb_dis I can do this with libvirt? PK PS: sorry for my poor english