Below is the string I use:
I use lsb to search for the the hostaddr of the usb device i want to
connect to qemu.
Qemu when it starts with this hostaddr then removes the device from the
acticve usb list.
Running lsusb after qemu starts shows the device disappeared.
Is this a bug ? as I cannot see a device just disappearing when qemu
starts.
sudo qemu-system-x86_64 -usb -device usb-host,hostbus=1,hostaddr=42
-device piix3-usb-uhci -enable-kvm -soundhw all -smp 4 -m 2048M -boot
d -cdrom /dev/cdrom -drive format=raw,file=hd.img