Re: Re: Added 915G to intelfb of 2.6.10-kernel-sources

["Buttchereit, Axel (XLsigned)" <XL@XLsigned.net>]

Antonino A. Daplas wrote:
> Can you resend the patch that touches only intelfb?  Also, there are a lot
> of XLSigned with the printk's, what is that?
Yes, I will do so.
I've marked all the places where I added/changed something with a
comment that contains my domainname (for finding them easier
during editing). I'll remove this before resending.

> Because the modedb array is marked __init.  You can however pass
> the vesa_modes array instead to fb_find_mode().
Ah, yes!
At the moment "intelfb" does not pass any "modedb" in its call(s) to
"fb_find_mode()" which results in using the "__init modedb" in case
of "static link" and using no modedb (actually using a not-initialized one)
at all, otherwise.
Passing "vesa_modes" would make things better when loading
"intelfb" as a module, but would change "well known behaviour",
when linked statically, though I could perfectly live with an "initfb"
that is always using "vesa_modedb".

Any suggestions?

Bumping into driver development for the first time it's quite
clear that I do not know many important things that I should know.
So please be "forgiving", if I ask stupid questions like this one:

How do I detect, if something (intelfb) is loaded as a module or
statically linked into the kernel?

>>>ByTheWay: Why isn't the framebuffer module (intelfb) automatically
>>>loaded, if
>>>"video=intelfb:..." is specified as kernel-parameter?
> 
> 
> If you want it loaded automatically, compile the driver statically. If you don't
> want to load a compiled-in driver, use:
> 
> video=intelfb:off
This is not exactly what I was asking for. :-)
It would be nice, if the module would automatically be loaded in
"early boot stage", when specified as a kernel-parameter. But this is
not really important (for me), because using "udev" and "hotplug/coldplug"
(on gentoo) finally loads it anyway.

Thanks
--Axel


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