From: deuce <deuce@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Tue, 6 May 2014 18:28:53 +0000 (+0000)
Subject: Initialize the COM port defaults before opening to avoid a very short
X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=ee35781dc829c90d7c32a1b4c21ec8ee96809d82;p=freetel-svn-tracking.git

Initialize the COM port defaults before opening to avoid a very short
RTS/DTR transient on open.



git-svn-id: https://svn.code.sf.net/p/freetel/code@1592 01035d8c-6547-0410-b346-abe4f91aad63
---

diff --git a/fdmdv2/src/fdmdv2_main.cpp b/fdmdv2/src/fdmdv2_main.cpp
index ebb4c646..ba157fd3 100644
--- a/fdmdv2/src/fdmdv2_main.cpp
+++ b/fdmdv2/src/fdmdv2_main.cpp
@@ -580,9 +580,20 @@ bool MainFrame::openComPort(const char *name)
 		closeComPort();
 #ifdef _WIN32
 	{
+		COMMCONFIG CC;
+		DWORD CCsize=sizeof(CC);
 		COMMTIMEOUTS timeouts;
 		DCB	dcb;
 
+		if(GetDefaultCommConfigA(name, &CC, &CCsize)) {
+			CC.dcb.fOutxCtsFlow		= FALSE;
+			CC.dcb.fOutxDsrFlow		= FALSE;
+			CC.dcb.fDtrControl		= DTR_CONTROL_DISABLE;
+			CC.dcb.fDsrSensitivity	= FALSE;
+			CC.dcb.fRtsControl		= RTS_CONTROL_DISABLE;
+			SetDefaultCommConfigA(name, &CC, CCsize);
+		}
+
 		if((com_handle=CreateFileA(name
 			,GENERIC_READ|GENERIC_WRITE 	/* Access */
 			,0								/* Share mode */