/* 
 * switch.c
 * How to register an button and count this
 * author: Simon Wörner, Manuel Vögele,
 * 	   Siegfried Kienzle
 * 24-March-2017
 * 
 * */

#define PIN01 ((char *) "1\n")
#define PIN12 ((char *) "12\n")
#define PIN11 ((char *) "11\n")
#define PIN06 ((char *) "6\n")
#define IN ((char *)"in\n")
#define OUT ((char *)"out\n")

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>

int reserve(char* gpioPort)
{
	int fd;
	char buffer[2];
	printf("%s", gpioPort);	
	strcpy(buffer, gpioPort );
	
	if((fd=open("/sys/class/gpio/export", O_RDWR | O_CREAT | O_TRUNC) == -1)) {
		perror(NULL);
		return EXIT_FAILURE;
	}

	if(write(fd, &buffer, sizeof(buffer)) == -1) {
		perror("Cannot write into file");
		return EXIT_FAILURE;			
	} 	
	printf("Success");
	close(fd);
	return EXIT_SUCCESS;	
}

int inOut(char gpioPort, char * inOut)
{

}

int main()
{
  reserve(PIN06);  
  return 0;
}