Re: LPT

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 12/14/2010 08:54 PM, Kirill Kuprijanov wrote:
> Hello,
>
> I have a motherboard with LCD indicator attached to it's LPT port. I
> would like to make grub show some early splash screen on it. All the
> things regarding protocol and pin assignments are ok, as I already
> have a programm to show stuff on LCD from OS (Debian). So the question
> is "how to make a grub module that is capable of setting levels on LPT
> pins?" and a second one is "how to make use of it during bootup
> procedure?
>
Currently GRUB has no LPT driver whatsoever. You would need to write
one. I suggest having look in our tree at ns8250.c (serial driver),
hello.c (module usage). As for how to write LPT driver, old DOS
documentation is usually of assistance (nothing changed there).
> Thanks in advance,
> Kirill
>
>
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>


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko

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