On Thu, May 4 2023 at 09:22:03 +1200, Luke Jones <luke@xxxxxxxxxx>
wrote:
On Wed, May 3 2023 at 17:46:53 +0000, Barnabás Pőcze
<pobrn@xxxxxxxxxxxxxx> wrote:
Hi
2023. május 3., szerda 6:02 keltezéssel, Luke D. Jones
<luke@xxxxxxxxxx> írta:
Add support for the WMI methods used to turn off and adjust the
brightness of the secondary "screenpad" device found on some
high-end
ASUS laptops like the GX650P series and others.
Is it this one: https://www.asus.com/content/rog-screenpad-plus/ ?
Or is the "plus" version something different?
If it's a "proper" screen, wouldn't it be better to add support for
it
in the respective subsystems? E.g. why not register a backlight
device?
I think it is similar yes, likely the same thing.
Adding as a proper backlight is what I wanted to do but at first
blush I wasn't sure.
Looking at include/linux/backlight.h + some examples it looks clear
now. I'll try to
work up a revised patch and get it tested by the folks with the
actual laptop.
My only possible issue would be how to handle the on/off part?
Cheers,
Luke.
This has now been addressed with "[PATCH v2 0/1] platform/x86:
asus-wmi: add support for ASUS screenpad" at
https://lkml.org/lkml/2023/5/5/9
