I got it to work under El Capitan, but after the upgrade to Sierra everything stopped working.

No device is found in osx. Nor does install directions from the FTDI site or the Adafruit instructions for VCP work...

As long as the os x doesn't recognise the usb device, there is nothing that virtualbox may attach to either.. I am stuck.

Is there anyone working on this or is the decision between buying a PC or moving on to another product?