[Intel-gfx] Legacy backlight control with KMS and BACKLIGHT property
keithp at keithp.com
Fri Aug 14 13:34:20 PDT 2009
On Fri, 2009-08-14 at 13:10 -0700, Greg KH wrote:
> Why? /sys/class/backlight should expose 2 backlights if they are known
> and present, right? Or is the problem that we don't expose new screens
> in sysfs for userspace to be able to work out which is which?
We don't know which backlight goes with which LVDS device...
> If so, then that should be fixed as well :)
It would be nice, but I haven't seen a proposal that attempts to address
this. Hiding the backlight behind a DRM interface would mean that future
fixes could be folded in without requiring changes in user-mode code.
keith.packard at intel.com
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