From 2e2e414070b5c97d042e6b0eb15bebd77dbc955c Mon Sep 17 00:00:00 2001
From: Armel FAUVEAU <armel.fauveau@globalis-ms.com>
Date: Sun, 27 Jul 2025 03:32:00 +0200
Subject: [PATCH] Handle serial port conflict (Chirp)

---
 desktop/k5viewer.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/desktop/k5viewer.py b/desktop/k5viewer.py
index 3cc2687c..8a2f4e56 100755
--- a/desktop/k5viewer.py
+++ b/desktop/k5viewer.py
@@ -49,7 +49,12 @@ def send_keepalive(ser: serial.Serial):
 def read_frame(ser: serial.Serial) -> bytearray:
     global framebuffer
     while True:
-        b = ser.read(1)
+        try:
+            b = ser.read(1)
+        except serial.SerialException as e:
+            #print(f"[ERROR] Serial read failed: {e}")
+            print("[!] Your USB serial cable is probably being used by another application such as Chirp.")
+            sys.exit(1)
         if not b:
             return None
         if b == HEADER[0:1]: