Hi,
Attached are the modifications I had to make to get my PS/2 to GC keyboard
adapter working properly. The adapter from "May Flash" and on the box it is
called "GC Keyboard & PS Controller Adapter 2in1" (it can convert PSX
joypads as well).
There are two parts to the modifications:
- getting the key codes from the raw data
- a few changes in the key mapping
The raw data was located in different nibbles as in the original code. I
don't know if my adapter is different from the other keyboards/adapters,
whether the data format is different in Wii mode compared to GC mode or
whether the old code was simply broken.
The old code for the third key does look broken:
key[2] = (raw[0] << 4) & 0xFF;
key[2] |= (raw[1] << 28) & 0xFF;
The second statement has no effect, but if you replace "<<" by ">>", it
starts making sense. Since this only makes a difference if 3 keys are
pressed simultaneously, it's likely nobody noticed it, so the rest of it
might still be correct.
If you look at the diff, the key mapping looks totally different, but that
is because I had to realign the columns; in fact there are only a few
changes:
0A: scroll Lock
36: PrtSc and numpad-slash
37: numpad-star
39: semicolon
3A: apostrophe
3F: backslash
53: caps Lock
cursors: 36 and listed
I'm using a US/International PS/2 PC keyboard, so differences are probably
not due to a PC keyboard layout difference.
I am looking for someone with a different keyboard/adapter to test whether
this new code works with it. And if it doesn't, if there is some way to
auto-detect the keyboard type (maybe using other parts of the raw data).
Bye,
Maarten
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