linux-kernel - RE: [PATCH v2] platform/x86: dell-wmi: Ignore new rfkill and fn-lock events

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Date:   Fri, 20 Apr 2018 14:30:27 +0000
From:   <Mario.Limonciello@...l.com>
To:     <pali.rohar@...il.com>, <kai.heng.feng@...onical.com>
CC:     <mjg59@...f.ucam.org>, <dvhart@...radead.org>,
        <andy@...radead.org>, <platform-driver-x86@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2] platform/x86: dell-wmi: Ignore new rfkill and fn-lock
 events



> -----Original Message-----
> From: Pali Rohár [mailto:pali.rohar@...il.com]
> Sent: Friday, April 20, 2018 2:29 AM
> To: Kai-Heng Feng
> Cc: mjg59@...f.ucam.org; dvhart@...radead.org; andy@...radead.org;
> Limonciello, Mario; platform-driver-x86@...r.kernel.org; linux-
> kernel@...r.kernel.org
> Subject: Re: [PATCH v2] platform/x86: dell-wmi: Ignore new rfkill and fn-lock
> events
> 
> On Friday 20 April 2018 15:26:48 Kai-Heng Feng wrote:
> > There are two new events generated by dell-wmi, rfkill and fn-lock, from
> > Dell Systems.
> >
> > When Fn-lock hotkey gets pressed to switch to function mode:
> > [85951.591542] dell_wmi: Unknown key with type 0x0010 and code 0xe035
> > pressed
> > [85951.591546] dell_wmi: Unknown key with type 0x0010 and code 0x0000
> > pressed
> >
> > When Fn-lock hotkey gets pressed to switch to multimedia mode:
> > [85956.667686] dell_wmi: Unknown key with type 0x0010 and code 0xe035
> > pressed
> > [85956.667690] dell_wmi: Unknown key with type 0x0010 and code 0x0001
> > pressed
> >
> > When radio hotkey gets pressed:
> > [85974.430220] dell_wmi: Unknown key with type 0x0010 and code 0xe008
> > pressed
> >
> > These events are for notification purpose, so we can ignore them.
> >
> > This patch is tested on XPS 9370.
> >
> > Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> 
> Reviewed-by: Pali Rohár <pali.rohar@...il.com>

Reviewed-by: Mario Limonciello <mario.limonciello@...l.com>

> 
> > ---
> > v2: Reorder alphabetically.
> >     More detailed changelog.
> >
> >  drivers/platform/x86/dell-wmi.c | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> >
> > diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
> > index 8d102195a392..ba8e6725d7ac 100644
> > --- a/drivers/platform/x86/dell-wmi.c
> > +++ b/drivers/platform/x86/dell-wmi.c
> > @@ -261,6 +261,12 @@ static const u16 bios_to_linux_keycode[256] = {
> >   * override them.
> >   */
> >  static const struct key_entry dell_wmi_keymap_type_0010[] = {
> > +	/* Fn-lock switched to function keys */
> > +	{ KE_IGNORE, 0x0, { KEY_RESERVED } },
> > +
> > +	/* Fn-lock switched to multimedia keys */
> > +	{ KE_IGNORE, 0x1, { KEY_RESERVED } },
> > +
> >  	/* Mic mute */
> >  	{ KE_KEY, 0x150, { KEY_MICMUTE } },
> >
> > @@ -296,6 +302,14 @@ static const struct key_entry
> dell_wmi_keymap_type_0010[] = {
> >  	{ KE_KEY,    0x851, { KEY_PROG2 } },
> >  	{ KE_KEY,    0x852, { KEY_PROG3 } },
> >
> > +	/*
> > +	 * Radio disable (notify only -- there is no model for which the
> > +	 * WMI event is supposed to trigger an action).
> > +	 */
> > +	{ KE_IGNORE, 0xe008, { KEY_RFKILL } },
> > +
> > +	/* Fn-lock */
> > +	{ KE_IGNORE, 0xe035, { KEY_RESERVED } },
> >  };
> >
> >  /*
> 
> --
> Pali Rohár
> pali.rohar@...il.com