Re: Frame buffer device thinkings...

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 15 Sep 1998 23:32:40 +0100 (BST)


> If we add another flag FB_ACTIVATE_USER for fb_var_screeninfo.activate, it can
> be used to indicate that the video mode was changed by a user space program. If
> this flag is set, the frame buffer device should assume that the supplied
> parameters are valid, and just fill in the display structure.

And check if setuid().

> Since hardware acceleration (bitblit) proved to be unnecessary for text
> consoles on modern hardware, the frame buffer device needs to have less
> knowledge about the hardware. All it needs to know is:

Thats a matter of opinion. A blitting S3 console is definitely an order
of magnitude nicer than vesafb. Its certainly true enough to say being able
to grab all acceleration for the Xserver is not catastrophe

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