#include <linux/ppdev.h>
#include <string.h>
#include <fcntl.h>

extern int errno;

#define	LONG	10

main()
{
int fd;
int mode;
int inC;
char tmp[10];
char *sbBuffer;
    
    fd = open("/dev/parport0",  O_RDWR);
    if (ioctl(fd, PPCLAIM) < 0)
    {
	perror("PPCLAIM");
	close (fd);
	return 1;
    }
    mode = IEEE1284_MODE_BYTE;
    if (ioctl(fd, PPSETMODE, &mode) < 0)
    {
	perror("PPSETMODE");
	close (fd);
	return 1;
    }
    inC = write (fd, "\x1B\x70\x0", 3);	 // open cash-drawer 
    printf ("write %s", strerror(errno));

    inC = write (fd, "\x1D\x72\x02", 3); // Transmit status  GSr
    printf ("write GSr2%s", strerror(errno));

    inC = read (fd, sbBuffer, 10);
    printf ("lei = %d %s", inC, sbBuffer);

    close (fd);
}

Limpia (char *sbBuffer)
{
int i;
   
     for (i=0; i <= LONG; i++)
	 sbBuffer[i] = '\0';
}