Questions on adding backlight support for the i915 driver

Elizabeth Myers elizabeth at interlinked.me
Sat Jan 31 06:13:34 UTC 2015


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.

--
Cheers,
Elizabeth


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