From 384e3bb6939b1c701bc8b78ff0264e7a908e87c5 Mon Sep 17 00:00:00 2001
From: Daniel Agar <daniel@agar.ca>
Date: Thu, 2 Feb 2017 22:10:23 -0500
Subject: [PATCH] meas_airspeed status aspd_com_err

---
 src/drivers/meas_airspeed/meas_airspeed.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/drivers/meas_airspeed/meas_airspeed.cpp b/src/drivers/meas_airspeed/meas_airspeed.cpp
index 839d2c30bd..86abc74dcb 100644
--- a/src/drivers/meas_airspeed/meas_airspeed.cpp
+++ b/src/drivers/meas_airspeed/meas_airspeed.cpp
@@ -186,15 +186,19 @@ MEASAirspeed::collect()
 
 	switch (status) {
 	case 0:
+		// Normal Operation. Good Data Packet
 		break;
 
 	case 1:
+		// Reserved
+		return -EAGAIN;
 
-	/* fallthrough */
 	case 2:
+		// Stale Data. Data has been fetched since last measurement cycle.
+		return -EAGAIN;
 
-	/* fallthrough */
 	case 3:
+		// Fault Detected
 		perf_count(_comms_errors);
 		perf_end(_sample_perf);
 		return -EAGAIN;