Re: [PATCH v2 5/5] platform/x86: intel-vbtn: support panel front button

From: Stefan Brüns
Date: Thu Nov 09 2017 - 19:22:01 EST


On Friday, November 10, 2017 12:40:33 AM CET Bastien Nocera wrote:
> On Thu, 2017-11-09 at 23:44 +0100, Stefan Brüns wrote:
> > The Lenovo Helix 2 and Dell XPS 12 (9Q33) have an extra button on the
> > front showing a 'Windows' logo, both reporting event codes 0xC2/0xC3
> > on press/release. On the Dell, both press/release are distinct events
> > while on the Helix 2 both events are generated on release.
> >
> > Tested on XPS 12, for info on the Helix 2 see:
> > https://www.spinics.net/lists/ibm-acpi-devel/msg03982.html
> >
> > Signed-off-by: Stefan Brüns <stefan.bruens@xxxxxxxxxxxxxx>
>
> Same problem as mentioned in patch 3. Pretty sure you need to set the
> Windows key release to KEY_IGNORE.
>
> Or better, teach the intel-vbtn driver which buttons should be
> autoreleased, and which ones should send key presses and key releases
> separately. This would allow handling long presses in the upper layers.

First, I explicitly mentioned on the XPS 12, press/release are distinct
events. Care to read?

Second, if you read patch 2/5, you see support for press/release vs
autorelease.

Regards,

Stefan

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Stefan Brüns / Bergstraße 21 / 52062 Aachen
home: +49 241 53809034 mobile: +49 151 50412019

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