As I'm not subscribed to firstname.lastname@example.org mailing list, just recently got aware that most part of drivers using videobuf version 1, have been moved to staging/media/depreciated area. This means that at some point these drivers could be removed if not converted to videobuf version 2 (maintainers wrote "some time next year"). The move started with https://lore.kernel.org/linux-…email@example.com/#t followed by https://lore.kernel.org/linux-…-firstname.lastname@example.org and https://lore.kernel.org/linux-…email@example.com which in result landed in 6.1 kernel.
This post is to raise some awareness about it, as I don't have skills to do the driver conversion myself. Hope someone in VDR community can step-up and do the task.