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

int main(int argc, char *argv[]){
	int fd;
	//EXPORT
	fd=open("/sys/class/gpio/chip0/export", O_WRONLY);
	if(fd<0)
	{
		perror("Error opening the gpio");
		return -1;
	}
	write(fd, "17",2);
	close(fd);	
	//PIN DIRECTION
	
	fd=open("/sys/class/gpio/chip0/gpio17/direction", O_WRONLY);	
	write(fd, "out",3);
	close(fd);

	//WRITE VALUE
	fd=open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);		
	write(fd, "1",1);
	close(fd);
	sleep(10);
	
	fd=open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);		
	write(fd, "0",1);
	close(fd);
	sleep(10);
	

	fd=open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);		
	write(fd, "1",1);
	close(fd);
	sleep(10);
	
	//UNEXPORT
	fd=open("/sys/class/gpio/chip0/gpio17/unexport", O_WRONLY);		
	write(fd, "17",2);
	close(fd);
	

	//
	printf("Hiii hello\n");
	printf("number of arguments: %d \n", argc);
	printf("program is reciving: %s \n", argv[0]);

	if(argc>1){
		printf("Argument %s\n ", argv[1]);
	}
	return 0;
}