Hi Laurent, Le Fri, 2 Sep 2011 13:42:03 +0200, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> a écrit : > I'm not sure if V4L2_CAP_VIDEO_OVERLAY is a good solution for this. > This driver type (or rather buffer type) was used on old systems to > capture directly to the PCI graphics card memory. Nowadays I would > advice using USERPTR with framebuffer memory. Could you give a short summary of how the USERPTR mechanism works? Thanks, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com -- 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