#include <fcntl.h>
#include <asm/io.h>
#include <time.h>
#include <unistd.h>

#define LPT 0x378
#define LED 1000000

unsigned int t;

int main(){

  ioperm(LPT,7,1);

  while(1){

    outb(1,LPT);
    usleep(LED/100);
    outb(0,LPT);
    usleep(LED);
  }

  return 0;
}