There is no good reason to put them in a private header. No functional change (but drivers now have access to these constants.) Change-Id: I7ac00a120ab44fbc110bc858dfd87d69d0061135 Reviewed-on: https://review.haiku-os.org/c/haiku/+/2294 Reviewed-by: Adrien Destugues <[email protected]> Reviewed-by: John Scipione <[email protected]>