Re: [PATCH v2] platform/x86: asus-wmi: Add keyboard backlight toggle support

[Chris Chiu]

On Tue, May 22, 2018 at 5:18 PM, Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
> On Tue, May 15, 2018 at 4:41 PM, Benjamin Berg <bberg@xxxxxxxxxx> wrote:
>
>> I had a quick chat with Bastien about this. The conclusion was that
>> reusing the TOGGLE key may be problematic for gnome-settings-daemon.
>> And the alternative of a new CYCLE key also has some caveats.
>>
>> The most straight forward solution is likely to simply handle the
>> brightness change in the kernel and not report the key to userspace at
>> all. This should work just fine and at least GNOME will show an on
>> screen display in response to the brightness change.
>>
>> Do you think that approach would work well?
>
> Am I right we are waiting for Daniel's answer?
>
> Btw, I mistakenly thought that patch in the queue for-next, while it's
> not. So, I'm going to drop it now.
> Feel free to re-submit a new (better) version.
>
> --
> With Best Regards,
> Andy Shevchenko

So it's better to handle NOTIFY_KBD_BRTUP, BRTDOWN, BRTTOGGLE
(c4, c5, c7) in the driver and no need to pass it up to userspace? I'll work
out a patch for this.

Chris