The thorpej-cfargs branch had a change to systematically remove interface attributes from config attachments:
https://mail-index.netbsd.org/source-changes-hg/2021/03/23/msg273413.html I don't understand what the purpose is. It's like changing function calls to not name the function that you're trying to call. Now there's no way to grep for, e.g., where wsmousedev children get attached. Why is this a good thing? I would like to revert this change (adapted to the current API), and go further in the opposite direction -- if a device has children at an interface attribute, mandate the use of the interface attribute at the call site, so that you can always find the places where children can be attached at any given interface attribute in the source code. Later, I'd like to make interface attributes have defined names (not just strings that can have copypasta errors) and types so we have the chance to detect mistakes at compile-time at the interface between parent and child device code.
