diff --git a/inc/V4l2Device.h b/inc/V4l2Device.h
index 5c784f7..8953ac1 100644
--- a/inc/V4l2Device.h
+++ b/inc/V4l2Device.h
@@ -22,13 +22,13 @@
 // ---------------------------------
 struct V4L2DeviceParameters 
 {
-	V4L2DeviceParameters(const char* devname, int format, int width, int height, int fps, int verbose) : 
+	V4L2DeviceParameters(const char* devname, unsigned int format, unsigned int width, unsigned int height, int fps, int verbose) : 
 		m_devName(devname), m_format(format), m_width(width), m_height(height), m_fps(fps), m_verbose(verbose) {};
 		
 	std::string m_devName;
-	int m_width;
-	int m_height;
-	int m_format;
+	unsigned int m_format;
+	unsigned int m_width;
+	unsigned int m_height;
 	int m_fps;			
 	int m_verbose;
 };
@@ -67,4 +67,4 @@ class V4L2Device
 		int m_bufferSize;
 };
 
-#endif
\ No newline at end of file
+#endif