From 8a0ab71c09f94681a51e2f508087952305798662 Mon Sep 17 00:00:00 2001
From: Ryan Pavlik <ryan.pavlik@collabora.com>
Date: Mon, 11 Nov 2019 10:23:49 -0600
Subject: [PATCH] t_imu: Comments.

---
 src/xrt/auxiliary/tracking/t_imu.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xrt/auxiliary/tracking/t_imu.h b/src/xrt/auxiliary/tracking/t_imu.h
index d67251bea..ac04820fa 100644
--- a/src/xrt/auxiliary/tracking/t_imu.h
+++ b/src/xrt/auxiliary/tracking/t_imu.h
@@ -13,8 +13,11 @@
 extern "C" {
 #endif
 
-
+/*!
+ * Opaque type for fusing IMU reports.
+ */
 struct imu_fusion;
+
 /*!
  * Create a struct imu_fusion.
  *