From 04ab5e2c4ca890bb310cbdc835123ca1cc36d291 Mon Sep 17 00:00:00 2001
From: Tobias Maier <me@maiertobi.de>
Date: Sun, 7 Dec 2025 17:13:35 +0100
Subject: [PATCH] added display

---
 src/enums.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/enums.rs b/src/enums.rs
index 0ed8fa7..6c7f8f4 100644
--- a/src/enums.rs
+++ b/src/enums.rs
@@ -1,3 +1,5 @@
+use core::fmt;
+
 use num_enum::{IntoPrimitive, TryFromPrimitive};
 
 /// Message Identifier used in the communication protocol. This is specified by Viessmann
@@ -11,6 +13,17 @@ pub enum MessageIdentifier {
     CommError = 0x03,
 }
 
+impl fmt::Display for MessageIdentifier {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Request => write!(f, "Request"),
+            Self::Response => write!(f, "Response"),
+            Self::Unacked => write!(f, "Unacked"),
+            Self::CommError => write!(f, "CommError"),
+        }
+    }
+}
+
 /// Function Code used in the communication protocol.
 /// 
 /// This is specified by Viessmann and Read and Write are usually used for simpler values, 
@@ -23,6 +36,16 @@ pub enum FunctionCode {
     RemoteProcedureCall = 0x07,
 }
 
+impl std::fmt::Display for FunctionCode {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::VirtualREAD => write!(f, "VirtualREAD"),
+            Self::VirtualWRITE => write!(f, "VirtualWRITE"),
+            Self::RemoteProcedureCall => write!(f, "RemoteProcedureCall"),
+        }
+    }
+}
+
 /// Response code used in the communication protocol. This is specified by Viessmann
 #[repr(u8)]
 #[derive(Debug, TryFromPrimitive)]