From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: Mario Lang <mlang@delysid.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: /dev/vcs: stuck with dimensions <255?
Date: Fri, 6 Aug 2004 16:10:07 +0200 [thread overview]
Message-ID: <20040806141007.GF3663@bouh.is-a-geek.org> (raw)
In-Reply-To: <BoGf.1UP.11@gated-at.bofh.it>
Le mar 30 sep 2003 à 11:10:11 +0200, Mario Lang a tapoté sur son clavier :
> I just realized, that /dev/vcsa behaviour is broken when
> used with lines or columns more than 255. I can easily
> get this behaviour by using the built-in 4x6 font on a
> 1024xsomething resolution. That results in 256 columns. However,
> the vcs devices expose dimensions and cursor position in the first
> 4 bytes.
>
> My question is now: Are we stuck with this now? I found that
> it is at least possible to use TIOCGWINSZ on the corresponding
> /dev/tty%d device to get correct dimensions, but then again, how
> would I optain the cursor position?
>
> I am wondering why a char was choosen at all. I see no gain
> by "saving" space there...
Well, vcsa was added a long time ago, I guess such dimensions weren't
possible at that time.
Of course we aren't stuck: we just need to add /dev/vcsx* which would
hold 32-bits integers, hoping this is sufficient once for all...
Regards,
Samuel
next parent reply other threads:[~2004-08-06 14:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <BoGf.1UP.11@gated-at.bofh.it>
2004-08-06 14:10 ` Samuel Thibault [this message]
2003-09-30 9:06 Mario Lang
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