Determining scancodes for obscure keyboard to modify keymap

[Patrick Lamaizière]

Le Tue, 24 Feb 2009 14:28:54 -0700,
carnage <carnagewashere at gmail.com>:

> I'm wondering how to go about determining the scancodes for keys on
> keypress.
> 
> I am looking to remap an apple usb keyboard (a1048).  It has F13-16, 3
> volume control keys and an eject key but no scroll lock, num lock,
> pause/break, etc.  I'm wondering how I would go about changing some
> of these not so useful keys into useful keys.
> 
> The keymap files in /usr/share/syscons/keymaps seem easy enough to
> modify but I am unsure of how to determine what the scancodes
> associated with the actual keys on keypress are.

I asked for this some times ago without any reply. Finally I added some
printf in the kbd driver. I don't remember exactly where, I think it was
in the function genkbd_keyaction() in kdb.c (something like printf("%i
- ", keycode)

That's ugly... Is there a better way to get the scancode?