usb Directory Reference

Files
	usb-dfu-trigger.c
	Implementation of the nRF dongle USB DFU trigger interface.
	usb-dfu-trigger.h
	Header file for the nRF52840 Dongle DFU trigger library.
	usb-serial.c
	Wrapper around the nRF SDK USB CDC-ACM implementation.
	usb-serial.h
	Header file for nRF52840's UART-like I/O over USB.