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

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Message-ID: <CAHp75VcQ+u6knQp=85y=BbFX5CmN47woxkqx1RsUrhJwwZdHuw@mail.gmail.com>
Date:   Wed, 21 Feb 2018 18:25:10 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Guillaume Douézan-Grard 
        <gdouezangrard@...il.com>
Cc:     Andy Shevchenko <andy@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 5/7] platform/x86: topstar-laptop: add Topstar
 U931/RVP7 WLAN LED workaround

On Wed, Feb 21, 2018 at 6:10 PM, Guillaume Douézan-Grard
<gdouezangrard@...il.com> 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.

-- 
With Best Regards,
Andy Shevchenko