/*
 * example.c: very simple example of port I/O
 *
 * This code does nothing useful, just a port write, a pause,
 * and a port read. Compile with `gcc -O2 -o example example.c',
 * and run as root with `./example'.
 */

#include <stdio.h>
#include <unistd.h>
#include <sys/io.h>

#define BASEPORT 0x2a2 /* PLC-730 card LED Output */

int main()
{
  int x;
  unsigned char y[] = {0x76,0x79,0x38,0x38,0x3f};
  /* Get access to the ports */
  if (ioperm(BASEPORT, 3, 1)) {perror("ioperm"); exit(1);}
  
  for(x=0;x<500;x++)
  {
     /* Set the data signals (D0-7) of the port to all low (0) */
     outb(y[x%5], BASEPORT+1);
  
     /* Sleep for a while (100 ms) */
     usleep(1000000);

     outb(0, BASEPORT+1);

     usleep(2000);

    
  }

  /* We don't need the ports anymore */
  if (ioperm(BASEPORT, 3, 0)) {perror("ioperm"); exit(1);}

  exit(0);
}

/* end of example.c */