From 3e409ce10cd61b2ce3c36320e424b81d5eef6fd0 Mon Sep 17 00:00:00 2001
From: Gerardo Marx <gmarx_cc@itmorelia.edu.mx>
Date: Wed, 30 Sep 2026 19:52:52 -0600
Subject: [PATCH] doing reading or writing

---
 main.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/main.c b/main.c
index f525e3c..baec450 100644
--- a/main.c
+++ b/main.c
@@ -45,9 +45,20 @@ int main(int argc, char *argv[]){
 			val = argv[3];
 			}
 
+	// performing the read/write operation
 	gpio_export(pin); 
 	gpio_direction(pin, dir);
-	gpio_write(pin, val);
+	
+	//gpio_write(pin, val);
+	if (strcmp(dir,"out") == 0) {
+		gpio_write(pin, val);
+	} else if (strcmp(dir, "in") == 0) {
+		gpio_read(pin);
+	} else {
+		perror("invalid direction argument\n");
+		return -12;
+	}
+	
 	gpio_unexport(pin);
 	
 }
@@ -68,7 +79,6 @@ int gpio_export(const char *gpio){
 }
 
 // gpio direction
-
 int gpio_direction(const char *gpio, const char *direction){
 	// pin direction - convert into functions
 	int fd;
@@ -108,10 +118,10 @@ int gpio_write(const char *gpio, const char *value){
 }
 
 // gpio read
-int gpio_read(const char *gpio); //read function
-
-
-
+int gpio_read(const char *gpio){
+	printf(" Test read function for gpio %s\n", gpio);
+	return 0;
+}
 
 // unexport
 int gpio_unexport(const char *gpio){