error catcher tested

23 hours ago · 1f3a52b99b
parent 33953817cf
commit 1f3a52b99b
1 changed files with 6 additions and 0 deletions
--- a/main.c
+++ b/main.c
@ -7,6 +7,12 @@ int main(int argc, char *argv[])
 	int fd;
 	// EXPORT
 	fd = open("/sys/class/gpio/chip0/export", O_WRONLY);
+	if(fd<0)
+	{
+		perror("Error opening GPIO export path");
+		return -1;
+	}
+
 	write(fd, "17", 2);
 	close(fd);
 	// DIRECTION