diff --git a/V1/led5/src/main.rs b/V1/led5/src/main.rs
index fea4313..f5e750b 100644
--- a/V1/led5/src/main.rs
+++ b/V1/led5/src/main.rs
@@ -40,20 +40,17 @@ static GPIO_BTN_ON: &'static str = "0";
 static GPIO_LED_ON: &'static str = "0";
 static GPIO_LED_OFF: &'static str = "1";
 
-fn open(path: &str) -> File {
-    return File::open(Path::new(path))
-        .expect(format!("Open file '{}' failed", path).as_str());
-}
-
 fn write(path: &str, value: &str) {
-    let mut file = open(path);
+    let mut file = File::create(Path::new(path))
+        .expect(format!("Open file '{}' failed", path).as_str());
 
     file.write_all(value.as_bytes())
         .expect(format!("Write value '{}' to '{}' file failed", value, path).as_str());
 }
 
 fn read(path: &str) -> String {
-    let mut file = open(path);
+    let mut file = File::open(Path::new(path))
+        .expect(format!("Open file '{}' failed", path).as_str());
     let mut contents = String::new();
 
     file.read_to_string(&mut contents)