From 8a6fc4b0f06c7c0d68f36f13392716558e94a64f Mon Sep 17 00:00:00 2001
From: June Tate-Gans <june@theonelab.com>
Date: Sun, 2 May 2021 23:47:25 -0500
Subject: [PATCH] g13gui: manager: Ensure both the header and buffer are bytes

---
 g13gui/g13gui/g13/manager.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/g13gui/g13gui/g13/manager.py b/g13gui/g13gui/g13/manager.py
index 02a30e2..d88fd0a 100644
--- a/g13gui/g13gui/g13/manager.py
+++ b/g13gui/g13gui/g13/manager.py
@@ -181,7 +181,8 @@ class Manager(threading.Thread):
         header[0] = 0x03
 
         self._device.write(
-            usb.util.CTRL_OUT | G13Endpoints.LCD.value, bytes(header) + buffer)
+            usb.util.CTRL_OUT | G13Endpoints.LCD.value,
+            bytes(header) + bytes(buffer))
 
     def _processCommands(self):
         while True: