From a5def5cf92c96b286024a72cdf24c814530373ac Mon Sep 17 00:00:00 2001
From: Daniel Beer <dlbeer@gmail.com>
Date: Sat, 30 Jul 2011 01:23:08 +1200
Subject: [PATCH] win32: set comm timeouts when opening serial port.

---
 sport.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sport.c b/sport.c
index cde62fb..9fb0a51 100644
--- a/sport.c
+++ b/sport.c
@@ -106,6 +106,7 @@ sport_t sport_open(const char *device, int rate, int flags)
 			       FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
 			       0);
 	DCB params = {0};
+	COMMTIMEOUTS timeouts = {0};
 
 	if (hs == INVALID_HANDLE_VALUE)
 		return INVALID_HANDLE_VALUE;
@@ -125,6 +126,12 @@ sport_t sport_open(const char *device, int rate, int flags)
 		return INVALID_HANDLE_VALUE;
 	}
 
+	timeouts.ReadIntervalTimeout = 50;
+	if (!SetCommTimeouts(hs, &timeouts)) {
+		CloseHandle(hs);
+		return INVALID_HANDLE_VALUE;
+	}
+
 	return hs;
 }