I noticed something I had never seen before, a 3rd party adaptor with control ring functionality. It is firmware upgradable, so that might help if new cameras or lenses break it. Apparently, its pretty new, no reviews on Amazon yet. Its not cheap at $99, but I am curious. I missed the Canon refurbs coming into stock for a short time yesterday, I was in town. I've been checking for it and have a email notification, but I got home too late.
Amazon.com : Lens Mount Adapter EF-R2 Auto-Focus Lens Converter Compatible with Canon EF/EF-S Lenses to EOS R/EOS RP Cameras, Easy Adjustment with Functional Control Ring : Camera & Photo
Amazon.com : Lens Mount Adapter EF-R2 Auto-Focus Lens Converter Compatible with Canon EF/EF-S Lenses to EOS R/EOS RP Cameras, Easy Adjustment with Functional Control Ring : Camera & Photo
www.amazon.com