From 736f78a7a2319faaf0a653b6c0a4bb4cb13993af Mon Sep 17 00:00:00 2001
From: Julien BERAUD <julien.beraud@parrot.com>
Date: Mon, 23 Nov 2015 20:18:13 +0100
Subject: [PATCH] AP_HAL_VRBRAIN: add empty optical flow

No onboard optical flow on VRBRAIN
---
 libraries/AP_HAL_VRBRAIN/HAL_VRBRAIN_Class.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libraries/AP_HAL_VRBRAIN/HAL_VRBRAIN_Class.cpp b/libraries/AP_HAL_VRBRAIN/HAL_VRBRAIN_Class.cpp
index 6efa5937bd..93bb696986 100644
--- a/libraries/AP_HAL_VRBRAIN/HAL_VRBRAIN_Class.cpp
+++ b/libraries/AP_HAL_VRBRAIN/HAL_VRBRAIN_Class.cpp
@@ -35,6 +35,7 @@ using namespace VRBRAIN;
 static Empty::Semaphore  i2cSemaphore;
 static Empty::I2CDriver  i2cDriver(&i2cSemaphore);
 static Empty::SPIDeviceManager spiDeviceManager;
+static Empty::OpticalFlow optflowDriver;
 //static Empty::GPIO gpioDriver;
 
 static VRBRAINScheduler schedulerInstance;
@@ -116,7 +117,8 @@ HAL_VRBRAIN::HAL_VRBRAIN() :
         &rcinDriver,  /* rcinput */
         &rcoutDriver, /* rcoutput */
         &schedulerInstance, /* scheduler */
-        &utilInstance) /* util */
+        &utilInstance, /* util */
+        &optflowDriver) /* optflow */
 {}
 
 bool _vrbrain_thread_should_exit = false;        /**< Daemon exit flag */