/*
 *    A program to set the bits on parallel port
 *
 *    Copyright (C) 2006, Daniel Rozsnyo
 *                        <daniel@rozsnyo.com>
 *
 *    Written for controlling the fans:
 *
 *      bit:  weight:  function:
 *       0       1      0 = 7V, 1 = 12V
 *       1       2      front top fan
 *       2       4      front bottom fan
 *       3       8      cpu fan
 *       4      16      rear fan
 */

#include <sys/io.h>
#define _XOPEN_SOURCE 500
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

#define 	LPT_PORT_ADDR	0x0378

int main( int argc, char* argv[] ) {
    int		data;
    ioperm( LPT_PORT_ADDR, 1, 255 );
    sscanf( argv[1], "%d", &data );
    outb( data, LPT_PORT_ADDR );
    return 0;
}