linux-kernel - Re: [PATCH v3 2/6] platform/x86: huawei-wmi: Add quirks and module parameters

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Date:   Fri, 20 Sep 2019 08:08:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Ayman Bagabas <ayman.bagabas@...il.com>
Cc:     Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sinan Kaya <okaya@...nel.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Takashi Iwai <tiwai@...e.de>,
        Stuart Hayes <stuart.w.hayes@...il.com>,
        Matan Ziv-Av <matan@...alib.org>,
        Hans de Goede <hdegoede@...hat.com>,
        "Enrico Weigelt, metux IT consult" <info@...ux.net>,
        Peng Hao <peng.hao2@....com.cn>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Mattias Jacobsson <2pi@....nu>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/6] platform/x86: huawei-wmi: Add quirks and module
 parameters

On Thu, Sep 19, 2019 at 08:39:07PM -0400, Ayman Bagabas wrote:
> Introduce quirks and module parameters. 3 quirks are added:
> 1. Fixes reporting brightness keys twice since it's already handled by
>    acpi-video.
> 2. Some models need a short delay when setting battery thresholds to
>    prevent a race condition when two processes read/write. (will be used later)
> 3. Matebook X (2017) handles micmute led through the "legacy" interface
>    which is not currently implemented. Use ACPI EC method to control
>    this led. (will be used later)
> 
> 2 module parameters are added to enable this short delay and/or report
>   brightness keys through this driver.

module parameters are a pain to manage and handle over time.  Is there
any way you can "automatically" figure this out, or use a sysfs file
instead?

thanks,

greg k-h