From c659d7851f1f9b17232244213c788b7cc5d261f9 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Fri, 22 Jan 2016 17:12:13 +0100
Subject: [PATCH] MS5611: Use the right locking mechanism on Pixracer

---
 src/drivers/ms5611/ms5611_spi.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/drivers/ms5611/ms5611_spi.cpp b/src/drivers/ms5611/ms5611_spi.cpp
index 78192c3a98..d5cd963adb 100644
--- a/src/drivers/ms5611/ms5611_spi.cpp
+++ b/src/drivers/ms5611/ms5611_spi.cpp
@@ -143,6 +143,11 @@ MS5611_SPI::~MS5611_SPI()
 int
 MS5611_SPI::init()
 {
+	// Sharing a bus with NuttX drivers
+#if defined (CONFIG_ARCH_BOARD_PX4FMU_V4)
+	set_lockmode(SPI::LOCK_THREADS);
+#endif
+
 	int ret;
 
 	ret = SPI::init();