view target-utils/helloapp/mygetchar.c @ 91:659fa1a26269

target-utils/libc: non-optimized C implementation of memset for the sake of completeness and compliance
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 28 Oct 2016 23:15:01 +0000
parents e7502631a0f9
children
line wrap: on
line source

/*
 * The interactive command entry (editing) function in libcommon
 * will call mygetchar() for its character input.  It is supposed
 * to be a blocking wait for input, but in some programs other
 * processing can be done while waiting - for example, check for
 * keypad presses as well.  This is the basic version which waits
 * for serial input and nothing else.
 */

extern int serial_in_poll();

int
mygetchar()
{
	register int c;

	do
		c = serial_in_poll();
	while (c < 0);
	return c;
}