Hi, I'm trying to use the new usb-host hostdevice property that was added here:
https://git.qemu.org/?p=qemu.git;a=commit;h=9f815e83e983d247a3cd67579d2d9c1765adc644 This is the command line that I am using: qemu-system-x86_64 -enable-kvm -hda arch-zoom.qcow2 -m 4G -device qemu-xhci,id=xhci -device usb-host,bus=xhci.0,hostdevice=/dev/bus/usb/002/004 -device intel-hda -device hda-duplex -vga virtio My user has permissions to access /dev/bus/usb/002/004 -- I am trying to pass-through this device: Bus 002 Device 004: ID 04f2:b449 Chicony Electronics Co., Ltd Integrated Camera When I boot up the guest I get this: usb 1-1: Invalid ep0 maxpacket: 64 usb usb1-port1: unable to enumerate USB device This works though: qemu-system-x86_64 -enable-kvm -hda arch-zoom.qcow2 -m 4G -device qemu-xhci,id=xhci -device usb-host,bus=xhci.0,vendorid=0x04f2,productid=0xb449 -device intel-hda -device hda-duplex -vga virtio I am using QEMU 5.1.0 on Arch Linux. Arch Linux is running on the guest as well as on the host. Any ideas what I'm doing wrong here please? Thanks, Diego
