@Gerd, thanks for this work!
I've already asked around in other forums, but xposting here as well.
What does it take to use these interrupt sources in userspace?
To me, the most straight-forward way would be to make exported gpios pollable via sysfs (sysfs is fast enough for my purposes). I also see this code, but not really sure how to use the debugfs file from it:
https://github.com/unwireddevices/gpio-irq-handlerSo what's a good way to use the GPIO interrupts from userspace without too much kernel hacking?
Thanks!