From dd45dae63dd740cdc662d2fb8f1aa4a1173d0998 Mon Sep 17 00:00:00 2001
From: Jonathan Naylor <naylorjs@yahoo.com>
Date: Tue, 23 Aug 2016 07:30:55 +0100
Subject: [PATCH] Add the duplex flag.

---
 Modem.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Modem.cpp b/Modem.cpp
index cff03e4..a70cd76 100644
--- a/Modem.cpp
+++ b/Modem.cpp
@@ -784,6 +784,8 @@ bool CModem::setConfig()
 		buffer[3U] |= 0x02U;
 	if (m_pttInvert)
 		buffer[3U] |= 0x04U;
+	if (m_duplex)
+		buffer[3U] |= 0x80U;
 
 	buffer[4U] = 0x00U;
 	if (m_dstarEnabled)