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

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.