Is it possible to attach a specific usb port to a VM instead of a specific device? The reason why I'm asking is that I have 3 devices with the same vendor and product id plugged in and to attach them to the VM I had to edit the xml like so:

    <hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <address bus='3' device='31'/>
      </source>
      <alias name='hostdev0'/>
      <address type='usb' bus='0' port='2'/>
    </hostdev>
    <hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <address bus='3' device='34'/>
      </source>
      <alias name='hostdev1'/>
      <address type='usb' bus='0' port='3'/>
    </hostdev>
    <hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <address bus='5' device='23'/>
      </source>
      <alias name='hostdev2'/>
      <address type='usb' bus='0' port='4'/>
    </hostdev>

The problem with that is that the bus and device change whenever I unplug something and plug it back in so every time I do that I have to reboot the vm which is seriously starting to get annoying.

You typically can't pass individual ports, you will need to pass a USB controller. Just don't accidentally pass the one the has your Unraid USB stick in it.

Spaceinvaderone has a series of videos on youtube about this kind of thing.

Thank you, his video worked perfectly, I would've preferred doing it port by port, but it works well enough controller-by controller

Edited February 22, 20197 yr by r00t