title: How to eject a USB device (no icon) from a mac to be used in VM
body: <p>I have a PIC microcontroller that needs to be used as a USB device. I have already succeeded communicating the PIC with my MAC so that is no the issue. 
  I can even see the device "mounted" with the command "system_profiler SPUSBDataType" that lists all USB devices connected with the computer.
  I need this device to be used in a Ubuntu Virtual Machine so I need to be able to "disconnect" this device from the host (mac os)  and open in the VM.
  How can I "disconnect" a non-iconed usb device from mac so I can "connect" to my VM? Any commands?</p>
  
  <p>THanks a lot...  </p>