Hi Mauro, I wonder if you remember anything about the reported broken colorspace handling of bttv. The spec talks about V4L2_COLORSPACE_BT878 where the Y range is 16-253 instead of the usual 16-235. I downloaded a bt878 datasheet and that mentions the normal 16-235 range. I wonder if this was perhaps a bug in older revisions of the bt878. Do you remember anything about this? I plan on doing some tests with my bttv cards next week. The main reason I'm interested in this is that I am researching the colorspace handling in v4l2 (and how it is defined in the spec). That needs to be nailed down because today nobody really knows how it is supposed to work and it is a complicated topic. Regards, Hans -- 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