InitCarrier.c

Go to the documentation of this file.

/********************************************************************************/
/* Use a raspberry pi with a IR led as remote control for your Tv, Dvd etc.     */
/* Copyright (C) 2016  Ed Kapitein                                              */
/*                                                                              */
/* This program is free software: you can redistribute it and/or modify         */
/* it under the terms of the GNU General Public License as published by         */
/* the Free Software Foundation, either version 3 of the License, or            */
/* (at your option) any later version.                                          */
/*                                                                              */
/* This program is distributed in the hope that it will be useful,              */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of               */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                */
/* GNU General Public License for more details.                                 */
/*                                                                              */
/* You should have received a copy of the GNU General Public License            */
/* along with this program.  If not, see <http://www.gnu.org/licenses/>.        */
/********************************************************************************/
#include <stdio.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>

#include "../Kmod/Kmod.h"
int InitCarrier( int Range, int Divisor, int DutyCycle )
 {
 int fd;
 fd = open("/dev/MyIrMod", O_WRONLY);

 if (fd == -1)
  {
  fprintf( stderr, "201608202233 Error in opening file /dev/MyIrMod\n");
  return(-1);
  }
       
 ioctl(fd,IOCTL_RANGE,Range);           /*ioctl call to set the frequency */
 ioctl(fd,IOCTL_DIVISOR,Divisor);       /*ioctl call to set the frequency */
 ioctl(fd,IOCTL_DUTY,DutyCycle);        /*ioctl call to set the duty cycle, must be called after setting the frequency */

 close(fd);

 return(0);
 }