I am new to both the Kinetis series as well as MQX, so forgive me if I have missed something obvious. I would like to run the command shell over the USB and it seems very probable that there is a demo for that, but I can't find it. Plenty of demos using USB to echo a single character but oddly those don't use the USB library from MQX nor do they provide useful functionality. What am I missing? Is there a trivial way to denote USB Device (virtual Comm) as the default I/O?