prueba_led

main.c

@@ -1,6 +1,28 @@
 #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);
+	write(fd,"17",2);
+	close(fd);
+	//pin direction
+	fd= open("/sys/class/gpio/chip0/gpio17/direction",O_WRONLY);
+	write(fd,"out",3);
+	close(fd);
+	
+	//pin value
+	fd= open("/sys/class/gpio/chip0/gpio17/value",O_WRONLY);
+	write(fd,"1",1);
+	close(fd);
+
+	//unexport
+	fd= open("/sys/class/gpio/chip0/unexport",O_WRONLY);
+	write(fd,"17",2);
+	close(fd);
+
 	printf("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n");
 	printf("Number of arguments: %d\n",argc);
 	printf("Program is reciving: %s\n", argv[0]);