How To Control The Parallel Port Data Pins Linux

In this video I go over how to use the parallel port to control LEDs and relays using a C application on Linux.
Source Code Link:
https://github.com/williamhlane/ParC.git
Source Code:
#include <stdio.h>
#include <unistd.h>
#include <sys/io.h>
#define PortAddress (0x0378)
int main()
{
int number;
printf("Enter the value for the pins you'd like to activate.");
scanf("%d", &number);
if (ioperm(PortAddress, 1, 1))
{
printf("ioperm(%x) failed. Are you root?", PortAddress);
return 1;
}
outb(number, PortAddress);
return 0;
}