Re: Display class

[James Simmons]

> > > > That patch was rought draft for feedback. I applied your comments. This 
> > > > patch actually works. It includes my backlight fix as well.
> > > 
> > > Glad to hear it.  I had to make the following changes
> > > in order for it to build.
> > > However, I still have build errors for aty.
> > 
> > Ug. I see another problem. I had backlight completly compiled as a 
> > module! Thus it hid these compile errors. So we need also a 
> > CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE check as well. Can sysfs handle this 
> > well or would it be better the the backlight class be a boolean instead?
> 
> SCSI works as a module and it uses sysfs.
> See drivers/scsi/scsi_sysfs.c.
> Does that answer your question?  I wasn't quite sure what
> the question was.

I'm scratching my head on how to configure a modular driver and 
two modular sysfs classes. 
 
> Next question, based on:
> drivers/built-in.o: In function `probe_edid':
> (.text.probe_edid+0x42): undefined reference to `fb_edid_to_monspecs'
> 
> Should backlight and/or display support depend on
> CONFIG_FB?  Right now they don't, so the above can happen...

I already sent a patch to Andrew to make backlight/lcd work independent of
CONFIG_FB. Display is still in the alpha stage. In time it will work 
independent of CONFIG_FB.

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