Re: Frame buffer device thinkings...

Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
Thu, 17 Sep 1998 10:01:07 +0200 (CEST)


On Wed, 16 Sep 1998, Olaf Titz wrote:
> On a completely unrelated framebuffer issue: I have a simple program

Let's hope it have _something_ to do with frame buffer devices :-)

> which swaps colormap entries to give me a black-on-white screen.
> (Which isn't exactly the same as the "inverse" option, because that
> swaps foreground and background, so if I set text to display in red I
> get black-on-red instead of the desired red-on-white.) My problem is
> that the palette is reset to the default on every console switch. I'd
> like to have it persist across switches, but I don't know how
> impossible that would be. Comments?

ioctl FBIOPUTCMAP on /dev/fb0 (if you use a frame buffer device console). More
info in <linux/fb.h>.

Greetings,

Geert

--
Geert Uytterhoeven                     Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}  http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium

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