From adf0f282e7fc53a93b41a5543f7ce4c581fc9c03 Mon Sep 17 00:00:00 2001
From: skarg <skarg@1e814d3a-8a88-4260-be86-c0dc25669c1e>
Date: Mon, 27 Jul 2009 18:48:06 +0000
Subject: [PATCH] Added delay and flush to correctly flush RS485 buffer.

---
 bacnet-stack/ports/linux/rs485.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bacnet-stack/ports/linux/rs485.c b/bacnet-stack/ports/linux/rs485.c
index 71da849f..4efd2fa2 100644
--- a/bacnet-stack/ports/linux/rs485.c
+++ b/bacnet-stack/ports/linux/rs485.c
@@ -281,6 +281,9 @@ void RS485_Initialize(
     tcsetattr(RS485_Handle, TCSAFLUSH, &newtio);
     /* destructor */
     atexit(RS485_Cleanup);
+    /* flush any data waiting */
+    usleep(200000);
+    tcflush(RS485_Handle, TCIOFLUSH);
     printf("=success!\n");
 }