Re: [Linux-fbdev-devel] [PATCH] FBDev: vga16fb port

Alan Cox (alan@lxorguk.ukuu.org.uk)
03 Dec 2002 15:47:43 +0000


On Tue, 2002-12-03 at 12:22, Antonino Daplas wrote:
> > Things I like to get done for the vga16fb driver.
> >
> > 1) Its own read and write functions to fake a linear framebuffer.
> Should be doable with fb_write and fb_read, but with mmap, the app still
> needs to know the VGA format.

I question whether thats something that belongs anywhere near the
kernel. Ben Pfaff wrote a fine library for vga16 hackery (BOGL) and it
combines very nicely with the fb driver.

> > 2) The ability to go back to vga text mode on close of /dev/fb.
> > Yes fbdev/fbcon supports that now.
>
> I'll take a stab at writing VGA save/restore routines which hopefully is
> generic enough to be used by various hardware. No promises though, VGA
> programming gives me a headache :(

You can pull the code out of the old svgalib library. Since its not
doing any card specific stuff the generic vga->text restore ought to do
the right thing.

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