Re: [PATCH] sysfs support for fbdev

[Jon Smirl <jonsmirl@gmail.com>]

On Tue, 1 Mar 2005 21:11:20 +0000 (GMT), James Simmons
<jsimmons@www.infradead.org> wrote:
> 
> > Not finished yet but here's an update.
> 
> Barf!!!! This patch is just nasty hack. Okay a run down on the fbdev api.
> First struct xxx_par is your data structure representing your device.
> There is one per video card. That is that hook in struct fb_info called
> par. The idea was xxx_par could be independent of the fbdev layer and
> could be used DRI. Now for the case of video cards with more than one
> framebuffer then you have bothe struct fb_info's par point to the same
> data structure. The verse works as well. Some systems allow multiple video
> cards hooked up to one montior. Two framebuffers, one display. The
> structure to deal with that is monspecs in struct fb_info. Now the problem
> is it is not a pointer :-( I have to fix that with a patch in the near
> future. If you are going to be messing with montiors work off of struct
> fb_monspecs.

Have you considered moving all of the monitor support out into a
hotplug helper app? This will even work at boot time since early user
space is there when fbdev initializes. The helper app would be on
initrd just like the boot disk drivers.

-- 
Jon Smirl
jonsmirl@gmail.com


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