Hi, I have to implement 2 filter controls: a boolean colour filter control to switch a fluorescent light band-stop filter on and off, and an also boolean control to switch a low-pass (border denoising, I think) filter. I found the following two filters in the existing API: case V4L2_CID_COLOR_KILLER: return "Color Killer"; case V4L2_CID_COLORFX: return "Color Effects"; can I use one of them for the fluorescent light filter? Which one would be more appropriate - COLOR_KILLER means switch to BW or only kill some specific colour component? As for the low-pass filter, can I use case V4L2_CID_SHARPNESS: return "Sharpness"; for it? Would it then be sharpness-off == filter-on? Or shall I add new controls or use driver-private ones? Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- 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