From 15e50b26dc5f3cf773bb1824a265dc28bd383279 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 28 Aug 2016 15:12:03 +0200
Subject: [PATCH] Fix MAVLink subscription

---
 src/modules/mavlink/mavlink_orb_subscription.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/modules/mavlink/mavlink_orb_subscription.cpp b/src/modules/mavlink/mavlink_orb_subscription.cpp
index 3635d8912b..f1747e3a79 100644
--- a/src/modules/mavlink/mavlink_orb_subscription.cpp
+++ b/src/modules/mavlink/mavlink_orb_subscription.cpp
@@ -170,6 +170,9 @@ MavlinkOrbSubscription::is_published()
 	// If it does not exist its not published
 	if (orb_exists(_topic, _instance)) {
 		return false;
+
+	} else if (_fd < 0) {
+		_fd = orb_subscribe_multi(_topic, _instance);
 	}
 
 	bool updated;