Or perhaps get rid of that unworkable "version number" thing (just freeze it in time with the 2.6.35 value returned), and implement a "get_feature_flags" ioctl or something for going forward. Then you can just turn on new bits in the flags as new features are added. It's a kludge (to get around the poor use of -EINVAL everywhere), but at least it's a design that's workable. Cheers -- 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