#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

int err=0;

int main(void)
{
	int fd;

	fd = open("/dev/ttymxc0", O_RDWR | O_NONBLOCK | O_NOCTTY);
	if (fd < 0)
	{
		err = 1;
		while(1);
	}

	if(dup2(fd, 0) < 0)
	{
		err = 2;
		while(1);
	}
	if(dup2(fd, 1) < 0)
	{
		err = 2;
		while(1);
	}
	if(dup2(fd, 2) < 0)
	{
		err = 2;
		while(1);
	}

	printf("Hi\n");
	while(1);

	return 0;
}