>> memory-mapped (which isn't normal I/O)

> Memory mapped I/O is very much normal I/O. Normal, as in "common" or "usual".

You know well what I meant.

What you said left an impression memory mapped I/O is somehow unusual or special, while it's actually a fairly common type of I/O.

So while I did know what you meant, I found your comment misleading to someone who isn't familiar with the subject.

Too many programmers misunderstand and are scared of memory mapping as it is.