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SubjectRe: [PATCH] SMM BIOS on Dell i8100
Hi Stephane,

Thanks for the info. I really believe you :-)
The X keycodes are indeed 129-132. I checked them using xev.
I checked /proc/i8k while pressing the buttons next to the
power button and they work fine.
So what's left is to tie these buttons to some function so that
I can control the soundvolume/dvd player wherever I am i X...

-Marcel

On Mon, Nov 05, 2001 at 06:01:24PM +0100, Stephane Jourdois wrote:
> On Mon, Nov 05, 2001 at 01:09:54PM +0100, Marcel J.E. Mol wrote:
> > I have an i8000 too. I tried some info to use the 'multimedia' buttons
> > next to the power button. Do you know if these are also managed through
> > smm? Or are thre other ways/tools to access these buttons?
> In fact, the two buttons next to the power button only are supported by
> the SMM BIOS. The 4 others buttons send e0 keyboard scancodes, and are
> fully supported by every kernel (Respectively e0 01, e0 02, e0 03, and
> e0 04, from left to right).
> Here is a patch to prove what I'm saying :
>
>
> --- drivers/char/pc_keyb.c.orig Mon Nov 5 17:41:54 2001
> +++ drivers/char/pc_keyb.c Mon Nov 5 17:45:56 2001
> @@ -227,9 +227,18 @@
> #define E0_MSLW 125
> #define E0_MSRW 126
> #define E0_MSTM 127
> +/*
> + * Multimedia Keys on Dell Inspiron i8x00
> + * (from left to right : play, stop, previous, next)
> + */
> +#define E0_DELL_PLAY 120
> +#define E0_DELL_STOP 121
> +#define E0_DELL_PREVIOUS 122
> +#define E0_DELL_NEXT 123
>
> static unsigned char e0_keys[128] = {
> - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00-0x07 */
> + E0_DELL_PLAY, E0_DELL_STOP, E0_DELL_PREVIOUS, E0_DELL_NEXT, /*
> 0x00-0x03 */
> + 0, 0, 0, 0, /* 0x04-0x07 */
> 0, 0, 0, 0, 0, 0, 0, 0, /* 0x08-0x0f */
> 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x17 */
> 0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0, /* 0x18-0x1f */
>
>
>
> Then edit your /etc/console/bootime.kmap.gz (package console-common in
> debian) to add for example :
> ----
> keycode 120 = F70 F71
> keycode 121 = Last_Console
> keycode 122 = Decr_Console
> keycode 123 = Incr_Console
> string F70 = "Hello World !"
> string F71 = "Dell Inspiron Powah !"
> ----
>
>
> then issue the command /etc/init.d/keymap.sh (or loadkeys if you do not
> use debian) *under console*, and you'll then believe me :-)
>
>
> To support those keys under X, that's more complicated, because AFAIK we
> have to create X keysyms before assigning them to keycodes.
> but try that in your ~/.xmodmap :
> ----
> keycode 129 = a b c d
> keycode 130 = a b c d
> keycode 131 = a b c d
> keycode 132 = a b c d
> ----
> then xmodmap ~/.xmodmap, and try <PLAY>, SHIFT-<PLAY>, ALT-<PLAY>,
> CTRL-<PLAY>, etc.
> (In fact, I really don't remember why I used 129-132 here... try with
> 120-123 if it doesn't work :-) I think I used those values to test if
> keycodes are 8bits clean, they are not.)
>
>
> Hope this helps, and if anybody knows how to implement keysyms, I'm
> interested... as long as I don't have to patch XFree86 !
>
> Please do not hesitate to contact me if you have any other questions.
>
> To finish, SMM BIOS implements supoprt for the two big buttons next to
> the power button (try to press them both at the same time to have mute
> ;-), and the three blue Fn-keys for sound (PgUp, PgDown, and End)
>
>
> Stephane.
>
> --
> /// Stephane Jourdois /"\ ASCII RIBBON CAMPAIGN \\\
> ((( Ingénieur développement \ / AGAINST HTML MAIL )))
> \\\ 6, av. de la Belle Image X ///
> \\\ 94440 Marolles en Brie / \ +33 6 8643 3085 ///



--
======-------- Marcel J.E. Mol MESA Consulting B.V.
=======--------- ph. +31-(0)6-54724868 P.O. Box 112
=======--------- marcel@mesa.nl 2630 AC Nootdorp
__==== www.mesa.nl ---____U_n_i_x______I_n_t_e_r_n_e_t____ The Netherlands ____
They couldn't think of a number, Linux user 1148 -- counter.li.org
so they gave me a name! -- Rupert Hine -- www.ruperthine.com
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