linux-kernel - Re: [PATCH] platform/x86: dell-wmi: Add a better description for "stealth mode"

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Date:   Sat, 27 May 2017 13:40:39 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Darren Hart <dvhart@...radead.org>
Cc:     Platform Driver <platform-driver-x86@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>,
        Mario Limonciello <mario_limonciello@...l.com>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Andy Shevchenko <andy@...radead.org>
Subject: Re: [PATCH] platform/x86: dell-wmi: Add a better description for
 "stealth mode"

On Sat, May 27, 2017 at 8:16 AM, Darren Hart <dvhart@...radead.org> wrote:
> From: Andy Lutomirski <luto@...nel.org>
>
> This is based on Mario's explanation and observation of my laptop.
>

Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

> Suggested-by: "Pali Rohár" <pali.rohar@...il.com>
> Signed-off-by: Andy Lutomirski <luto@...nel.org>
> Cc: Mario Limonciello <mario_limonciello@...l.com>
> Cc: Matthew Garrett <mjg59@...f.ucam.org>
> Cc: Andy Shevchenko <andy@...radead.org>
> Signed-off-by: Darren Hart (VMware) <dvhart@...radead.org>
> ---
>  drivers/platform/x86/dell-wmi.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
> index 24467b1..73aee0d 100644
> --- a/drivers/platform/x86/dell-wmi.c
> +++ b/drivers/platform/x86/dell-wmi.c
> @@ -272,7 +272,12 @@ static const struct key_entry dell_wmi_keymap_type_0010[] __initconst = {
>         /* RGB keyboard backlight control */
>         { KE_IGNORE, 0x154, { KEY_RESERVED } },
>
> -       /* Stealth mode toggle */
> +       /*
> +        * Stealth mode toggle. This will "disable all lights and sounds".
> +        * The action is performed by the BIOS and EC; the WMI event is just
> +        * a notification. On the XPS 13 9350, this is Fn+F7, and there's
> +        * a BIOS setting to enable and disable the hotkey.
> +        */
>         { KE_IGNORE, 0x155, { KEY_RESERVED } },
>
>         /* Rugged magnetic dock attach/detach events */
> --
> 2.9.4
>



-- 
With Best Regards,
Andy Shevchenko