Re: [MiNT] update:WRITE_BOOT,ALLOW_TRP_CHG

[Jo Even Skarstein <joska@online.no>]

On Sun, 2012-10-07 at 06:10 +1300, Paul Wratt wrote:

> FYI, especially for those considering add that dev to kernel, most
> (99%) PC keyboards are "cheap" where multi-key-press is concerned, 3
> is max. only high quality keyboard can register more (read: gaming
> keyboards) - this then has affect on FireBee, CT6x, and anything else
> that uses PS/2 keyboards..

This is a myth. There is no limit on the number of concurrent keypresses
with PS/2 keyboards. True, cheaper keyboards will probably suffer from
ghosting (pressing three keys will produce a fourth "ghost" keypress
depending on the key's location) but this has nothing to do with the
PS/2 protocol. Atari IKBD keyboards suffers from the same problem.

In fact, PS/2 is preferred over USB by "gamers" just for this reason.
Unlike PS/2, there is a max limit of six concurrent keypresses (plus
modifier keys) for USB HID keyboards. If you press a seventh key, the
first one will be lost.

Anyway, this is a limitation of the keyboard and nothing the OS has to
worry about.

Jo Even