From a61a72cc943ebaa4b6143aa69f6d77b3e37e3471 Mon Sep 17 00:00:00 2001
From: Vojtech Kral <vojtech@kral.hk>
Date: Wed, 27 Feb 2019 16:31:45 +0100
Subject: [PATCH] avrdude: Fix serial timeout on Windows

---
 src/avrdude/ser_win32.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/avrdude/ser_win32.c b/src/avrdude/ser_win32.c
index c62e83608..8efca0397 100644
--- a/src/avrdude/ser_win32.c
+++ b/src/avrdude/ser_win32.c
@@ -142,6 +142,7 @@ static BOOL serial_w32SetTimeOut(HANDLE hComPort, DWORD timeout) // in ms
 	// ctmo.ReadIntervalTimeout = timeout;
 	// ctmo.ReadTotalTimeoutMultiplier = timeout;
 	ctmo.ReadTotalTimeoutConstant = timeout;
+	ctmo.WriteTotalTimeoutConstant = timeout;
 
 	return SetCommTimeouts(hComPort, &ctmo);
 }