Thank you for your reply. I already came across the page you mentioned and the corresponding manual. Nevertheless, I can't figure out how to attach a USB device to a running VM through the prlctl command.
I can start it but I don't know how to specify a USB device (say, the embedded bluetooth controller) in the "prlctl --add-device usb" command. Using the GUI, I could manage to have the BT controller automatically attached at start, but this doesn't happen if I start it from the command line using the "prlctl start" command: the BT device is not attached to the VM.
I even opened the XML config files and found all the parameters related to the BT controller, but I can't figure out how to specify those parameters on the command line...
That would be great to do so, as I want to write script that automatically start the VM and run a program inside it.
Thank you!