Hi! Compiling the media drivers out of tree with media_build does not handle FRAME_VECTOR correctly. My kernel sources have FRAME_VECTOR but it is not enabled. So all modules depending on it (e.g. VIDEOBUF2_MEMOPS) will fail to load because the relevant functions cannot be found. I see two options: 1. Modify the real kernel sources to allow FRAME_VECTOR be enabled via config (either y or m). I locally just modified my kernel's mm/KConfig like this: config FRAME_VECTOR - bool + tristate "enable frame_vector for external modules" 2. Change media_build to supply a replacement when it is not enabled in the system kernel. Regards Matthias -- 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