Hello everyone, What I'm curious is about what is V4L2_MEMORY_OVERLAY for. Even though I have been using overlay capability before, I always used V4L2_MEMORY_MMAP instead of that. And our v4l2 api document tells nothing about V4L2_MEMORY_MMAP (only [todo] is left..OMG ;-() But looking into videobuf, I can see some codes implemented for V4L2_MEMORY_OVERLAY. But I'm not sure about which point can make driver available for V4L2_MEMORY_OVERLAY. If the implementation of that method is still in progress, can I have any information or chance to participate? Until then I might be using V4L2_MEMORY_MMAP in my camera interface driver. Cheers, Nate -- = DongSoo, Nathaniel Kim Engineer Mobile S/W Platform Lab. Digital Media & Communications R&D Centre Samsung Electronics CO., LTD. e-mail : dongsoo.kim@xxxxxxxxx dongsoo45.kim@xxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html