From 819251246c1ed05c928f72c6722adb98b3ffd0f9 Mon Sep 17 00:00:00 2001
From: Francisco Ferreira <M19120946@morelia.tecnm.mx>
Date: Thu, 24 Sep 2026 09:08:33 -0600
Subject: [PATCH] error catcher

---
 main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 341bb65..8aed1ab 100644
--- a/main.c
+++ b/main.c
@@ -6,8 +6,13 @@ 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);
+	close(fd);	
 	//PIN DIRECTION
 	
 	fd=open("/sys/class/gpio/chip0/gpio17/direction", O_WRONLY);