Re: Fw: Re: keyboard problem with 2.6.6

From: Giuseppe Bilotta
Date: Sun May 30 2004 - 11:12:50 EST


Vojtech Pavlik wrote:
> On Sun, May 30, 2004 at 02:38:08PM +0200, Giuseppe Bilotta wrote:
>
> > > The kernel input layer doesn't treat modifiers as special keys, and
> > > currently (include/linux/input.h) has shift, alt, ctrl and meta keys.
> > > Both left and right. This covers all keyboards I've seen so far,
> > > including SGI, Sun, Mac, and other keyboards.
> > >
> > > This is different from the X keysym modifiers, because the super and
> > > hyper modifiers usually don't correspond to real physical keys on the
> > > keyboard.
> >
> > Sorry but this is untrue. My Win keys are configured as super,
> > for example.
>
> The Linux kernel reports them as KEY_LEFTMETA, KEY_RIGHTMETA and
> KEY_COMPOSE.

In X standard keyboards Meta is mapped as the second symbol for
Alt.

// definition for the extra keys on 104-key "Windows95" keyboards
xkb_symbols "pc104" {
include "us(generic101)"
key <LALT> { [ Alt_L, Meta_L ] };
key <RALT> { [ Alt_R, Meta_R ] };
key <LWIN> { [ Super_L ] };
key <RWIN> { [ Super_R ] };
key <MENU> { [ Menu ] };

// modifier mappings
modifier_map Mod1 { Alt_L, Alt_R, Meta_L, Meta_R };
modifier_map Mod4 { Super_L, Super_R };
};

// definition of Euro-style, Right "logo" key == [Mode_switch, Multi_key]
xkb_symbols "pc104euro" {
include "us(pc104)"
key <RALT> { [ Mode_switch ]
};
key <RWIN> { [ Multi_key ] };
};

> > > The X step could be avoided if we had a definition file for xkb for the
> > > kernel emulated keyboard.
> >
> > That's exactly what I'm saying. But there isn't. Which is what
> > pisses off most users.
>
> I'm not very familiar with xkb configuration. Perhaps you'd be willing
> to write that definition file? I'll certainly help you from the kernel
> side - I can even generate a list of keycode - scancode - meaning
> relations for you.

If you do generate a list of keycode - scancode - meaning pairs
it will surely make my life easier.

I'm not particularly familiar with xkb configuration either. I
can *probably* make it work (i.e. test it as functional) on my
Dell Inspiron 8200 keyboard and on a standard pc104 keyboard
only. You probably need somebody else to work out the details
for other keyboards, though.

--
Giuseppe "Oblomov" Bilotta

Can't you see
It all makes perfect sense
Expressed in dollar and cents
Pounds shillings and pence
(Roger Waters)

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/