Hello, I'm probably just looking for a project of unnecessary complexity to take on but I couldn't help but notice there's been driver support for mmap on DVB devices in the Linux kernel now for a pretty long time. I also noticed that it's been marked experimental since inception and that nothing seems to use it or have a real example of it for the DVB spec (v4lutils' dvb wrappers included). Is there a grave reason this thing is still marked experimental? It seems in theory like a good way to prevent context switches. I'm nearly considering experimenting with modifying mythtv's DVB demuxing, tuning, and streaming routines to use this. Not because I need to, mind you, it's just an ancient system and I'm trying to prevent every ounce of the occasional hiccup that happens. https://www.kernel.org/doc/html/v5.15/userspace-api/media/dvb/dmx-mmap.html
