@john-c said in USB Passthrough Override Script - to ensure usb-policy.conf consistency:

This is no longer needed if you have Xen Orchestra version 5.93 or later, alternatively if using in home lab and from source then any commit dated after 29th March 2024 (or current head on GitHub Main - Master). The reason being that Xen Orchestra from version 5.93 has official support for USB Passthrough and later from version 5.95 you can do PCI Passthrough.

This is unfortunately still needed, as otherwise the XO simply does not show the PUSB in the host, so it cannot be assigned as a VUSB for the VM.

@zeropointer thanks for the idea, this seems to be the most pragmatic solution.