Re: [PATCH v4 5/7] platform/x86: topstar-laptop: add Topstar U931/RVP7 WLAN LED workaround

From: Guillaume DouÃzan-Grard
Date: Wed Feb 21 2018 - 11:40:05 EST


On Wed, Feb 21, 2018 at 06:25:10PM +0200, Andy Shevchenko wrote:
> On Wed, Feb 21, 2018 at 6:10 PM, Guillaume DouÃzan-Grard
> <gdouezangrard@xxxxxxxxx> wrote:
> > Topstar U931 laptops provide a LED synced with the WLAN adapter
> > hard-blocking state. Unfortunately, some models seem to be defective,
> > making impossible to hard-block the adapter with the WLAN switch and
> > thus the LED is useless.
> >
> > An ACPI method is available to programmatically control this switch and
> > it indirectly allows to control the LED.
> >
> > This commit registers the LED within the corresponding subsystem, making
> > possible for instance to use an rfkill-based trigger to synchronize the
> > LED with the device state.
> >
> > This workaround is enabled automatically for Topstar U931/RVP7 laptops
> > based on a DMI check.
>
> > - * ACPI driver for Topstar notebooks (hotkeys support only)
> > + * Topstar Laptop ACPI Extras driver
>
> Nope.
> I think it's previous one.

Previous one is still technically "hotkeys support only", but I'll
change this.

(and sorry for the license mismatch, I fix that right now...)

--
Guillaume DouÃzan-Grard