On Wed, Mar 12, 2003 at 09:04:15AM +0100, Benjamin Herrenschmidt wrote:
> On Tue, 2003-03-11 at 21:49, Mark Vojkovich wrote:
> >    It's worth considering a helper function in the core server
> > on Linux PPC that knows how to talk to the IVAD controller.  
> > These drivers could call it at the appropriate times.  If
> > it's just one function call in the driver and if they whole
> > think is conditionally built, I don't think that sounds too bad.
> 
> OK. Well, since I want also normal userland acess to it
> (so the user can change the brightness or screen geometry),
> I think the best is to move all of that stuff to a cmdline
> tool and have XFree call it with approriate parameter from
> that hook. That's also the best way to keep the XFree part
> of the code OS neutral (the external userland tool can then
> be ported on *BSD to whatever mecanism they provide for i2c
> communication on the CUDA and PMU busses).

Why not make it a library, that could be used by a commandline/whatever
frontend, or linked in with the XFree86 Server if needed.

The portability remains, as you may just need to port the library.

Friendly,

Sven Luther
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