Hal and Xorg output devices

[Ely Levy]

I would like to propose the following design:
Move the card memory allocation into xlibpci
Move the rest of the pci probing into hal while making hal use
libpci to get the info (since libpci is gpl we can't call it directly from
X).
Move rest of screen info into hal write a libddc lib and let hal use it
for getting the information.

X should export a dbus api and should be able to call functions like
array{InputDevices} ProbeForInputDevices()
array{VideoCard} ProbeForVideoCards()
array{Monitors} ProbeForMonitors(VideoCard card)
(taken from davidz suggestion).

This stracture should enable easy adding/removing of screens.


Ely Levy
System group
Hebrew University
Jerusalem Israel



On Thu, 24 Feb 2005, Jon Smirl wrote:

> On Thu, 24 Feb 2005 18:59:09 +0200 (IST), Ely Levy
> <elylevy-xserver at cs.huji.ac.il> wrote:
> > What's wrong with using hal then?
>
> HAL can layer above the stuff in fbdev, but the mode setting support
> needs to be down at the kernel level to ensure that the PCI bus is
> managed properly. Also X is not the only consumer of video. Just
> because Linux has this architecture it doesn't mean other systems have
> to follow it.
>
> --
> Jon Smirl
> jonsmirl at gmail.com
>