Zephyr now requires that main return int instead of void. Signed-off-by: Keith Packard <keithp@keithp.com>
Adds a simple auxdisplay sample which outputs hello world and the name of the board. A sample overlay is provided for the nucleo_f746zg board with a Hitachi HD44780-compatible display. Signed-off-by: Jamie McCrae <spam@helper3000.net>