Port 0x61

[DarylD]

Okay, the keyboard controller uses ports 0x60 and 0x64, for command and data.

Why does a lot of code I see, send confirmation back to 0x61??? This is the system speaker after all!!!

[Tim]

Because that code is wrong, at least on AT-class systems. The keyboard controller on the original PC required to you send a confirmation to port 0x61 after every key press; it's not needed on current machines.

[DarylD]

Ah, thanks for that information, it makes it a lot clearer now, so I will dump that code now, I don't want to be doing any unnecessary I/O work if possible.

Thanks again!

[Slasher]

Hi, if you are programming any hardware device, get the docs for it as your MAIN source instead of gathering other codes for your PRIMARY SOURCE of info