[Pkg-libvirt-maintainers] Bug#998468: libvirt0: qemu KVM: USB Passthrough partially stopped working in Bullseye

[Lee Garrett]

I have not found a solution to this issue.

However there is a workaround that involves passing the serial device to 
the guest VM instead of the USB device:

https://community.home-assistant.io/t/cannot-passthrough-conbee-ii-with-kvm-host-debian-guest-haos/465496/5

In this specific case I was able to use the zigbee controller with HA.

The underlying problem (passthrough not working properly) however still 
remains.

Greets,
Lee