Questions on adding backlight support for the i915 driver

[Adrian Chadd]

On 30 January 2015 at 22:13, Elizabeth Myers <elizabeth at interlinked.me> wrote:
> On 01/30/15 23:20, Adrian Chadd wrote:
>> Do you have brightness buttons anywhere? What happens when you set it
>> through this API and then you use the backlight buttons?
>
>
> I do, but FreeBSD doesn't have the needed WMI doodads to interact with
> this, nor do I have the needed Dell laptop doodads in the kernel to test
> otherwise.
>
> To get /those/ working will require something else entirely. I have been
> looking at the Linux drivers:
>
> https://github.com/torvalds/linux/blob/master/drivers/platform/x86/dell-wmi.c
> https://github.com/torvalds/linux/blob/master/drivers/platform/x86/dell-laptop.c
>
> I'll save those for another day though, this is a bit off-topic. If
> anyone else has laptop keys I'd like to see how they interact too.

*nod* cool. I don't have any Dell hardware and I have no idea how any
of that holds together. :(

I'll wait and see what kib/jhb say and if there aren't any issues I'll
commit your i915 debug patch.



-adrian