[Intel-gfx] Legacy backlight control with KMS and BACKLIGHT property

[Keith Packard]

On Fri, 2009-08-14 at 11:13 -0700, Greg KH wrote:


> My question is, does this belong in the kernel side, to expose the
> backlight through /sys/class/backlight/, or do we do this on the
> userspace side in perhaps the xorg intel driver (where we can touch
> pci config space just as easily)?

Also, /sys/class/backlight makes it hard to deal with machines that have
two screens with different backlights, so we should at least hide this
from user space for now and provide a suitable abstraction through KMS
properties...

-- 
keith.packard at intel.com
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