Multimedia Keyboard (no scancodes?)

Multimedia Keyboard (no scancodes?)

[Marco Gulino]

Hi all,
 Where i was using the 2.4.x kernel my multimedia keyboard was sending the
 special keys to usermode apps, allowing to control them and assign some
 functions.
 Now i'm on 2.6.2 and some of these keys are not working... no scancode,
 nothing, either looking with dmesg or xev.
 It's like the kernel is "filtering" the unknown scancodes and delete them.
 Ideas?
 Thanks anyway.
 p.s.: the 2.4 kernel i was using was a standard bareacpi.i from SlackWare
 9.1, while the config for 2.6 was strongly edited. However i didn't see any
 option for keyboards, so i don't think it's a config fault.
 p.p.s.: sorry for bad english :P

Re: Multimedia Keyboard (no scancodes?)

[Andries Brouwer]

On Sat, Feb 07, 2004 at 12:34:16AM +0100, Marco Gulino wrote:

>  Where i was using the 2.4.x kernel my multimedia keyboard was sending the
>  special keys to usermode apps, allowing to control them and assign some
>  functions.
>  Now i'm on 2.6.2 and some of these keys are not working... no scancode,
>  nothing, either looking with dmesg or xev.
>  It's like the kernel is "filtering" the unknown scancodes and delete them.

Yes, unfortunately we lost raw scancode mode.
The kernel first tries to translate scancodes to keycodes,
and then, if you ask for scancodes, tries to translate back.
The first translation will fail when the table entry is undefined.
Now you'll see "atkbd.c: Unknown key ..." in the syslog.
The second translation may fail because the correspondence is not 1-1.

You can try to use setkeycodes (say, from kbd-1.12) to solve
the problem of undefined entries.

Andries