Hi everyone, As you may know I'm re-writing from scratch the staging/easycap driver. Finally, after digging through the labyrinthic staging/easycap code, I've reached a point where I'm able to understand isoc packets. Despite not having any documentation (I asked several times) from chip vendor, I can separate packets in odd and even. So, instead of receiving frames the device is sending me fields, right? My doubt now is this: * Do I have to *merge* this pair of fields for each frame, or can I give it to v4l? If affirmative: how should I *merge* them? * Is this related to multiplanar buffers (should I use vb2_plane_addr)? Currently, staging/easycap does some strange and complex conversion, from the pair of fields buffers, to get a "frame" buffer (!) but I'm not sure if it's the correct way to do it? I guess I can keep staring at em28xx (together with vivi/uvc/pwc) driver, but if someone cares to give me a small hint or point me at a small portion of code I'll be grateful. Thanks, Ezequiel. -- 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