1 files changed, 4 insertions, 0 deletions
diff --git a/src/libcamera/include/media_device.h b/src/libcamera/include/media_device.h
index e513a2fe..7b88e287 100644
--- a/src/libcamera/include/media_device.h
+++ b/src/libcamera/include/media_device.h
@@ -30,6 +30,9 @@ public:
 	void release();
 	bool busy() const { return acquired_; }
 
+	bool lock();
+	void unlock();
+
 	int populate();
 	bool valid() const { return valid_; }
 
@@ -58,6 +61,7 @@ private:
 	int fd_;
 	bool valid_;
 	bool acquired_;
+	bool lockOwner_;
 
 	int open();
 	void close();