USB serial not working inside VM

I was able to workaroud this by passing the serial device to the VM via.

config:
  raw.qemu.conf: |-
    [chardev "serial"]
    id = "cma"
    backend = "serial"
    path = "/dev/serial/by-id/usb-dresden_elektronik_ingenieurtechnik_GmbH_ConBee_II_DE2669785-if00"
    [device "serial"]
    driver = "usb-serial"
    chardev = "cma"
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