From a4f0515ab164bb6a2fd44c2fc3e2d3c7ba45a08b Mon Sep 17 00:00:00 2001
From: rswindell <>
Date: Mon, 6 Jul 2009 20:36:23 +0000
Subject: [PATCH] Have comOpen() force the port to N-8-1 as some com devices
apparently default to E-7-1.
---
src/comio/comio_win32.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/comio/comio_win32.c b/src/comio/comio_win32.c
index 2324d85298..3e0dd467df 100644
--- a/src/comio/comio_win32.c
+++ b/src/comio/comio_win32.c
@@ -8,7 +8,7 @@
* @format.tab-size 4 (Plain Text/Source Code File Header) *
* @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
* *
- * Copyright 2007 Rob Swindell - http://www.synchro.net/copyright.html *
+ * Copyright 2009 Rob Swindell - http://www.synchro.net/copyright.html *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public License *
@@ -52,6 +52,7 @@ COM_HANDLE comOpen(const char* device)
{
COM_HANDLE handle;
COMMTIMEOUTS timeouts;
+ DCB dcb;
if((handle=CreateFile(device
,GENERIC_READ|GENERIC_WRITE /* Access */
@@ -73,6 +74,14 @@ COM_HANDLE comOpen(const char* device)
SetCommTimeouts(handle,&timeouts);
}
+ /* Force N-8-1 mode: */
+ if(GetCommState(handle, &dcb)==TRUE) {
+ dcb.ByteSize = 8;
+ dcb.Parity = NOPARITY;
+ dcb.StopBits = ONESTOPBIT;
+ SetCommState(handle, &dcb);
+ }
+
return handle;
}
--
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