linux-kernel - Re: [PATCH] eeepc-wmi: set the touchpad toggle key code to F21

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Date:	Fri, 25 Feb 2011 15:25:34 -0700
From:	"Joey Lee" <jlee@...ell.com>
To:	<chris@...bagwell.com>
Cc:	<keng-yu.lin@...onical.com>, <tyson.chen@...onical.com>,
	<corentin.chary@...il.com>, <dmitry.torokhov@...il.com>,
	<acpi4asus-user@...ts.sourceforge.net>,
	"Joey Lee" <JLee@...ell.com>, <mjg@...hat.com>,
	<linux-kernel@...r.kernel.org>,
	<platform-driver-x86@...r.kernel.org>
Subject: Re: [PATCH] eeepc-wmi: set the touchpad toggle key code to F21

於 五，2011-02-25 於 09:14 -0600，Chris Bagwell 提到：
> On Fri, Feb 25, 2011 at 1:18 AM, Dmitry Torokhov
> <dmitry.torokhov@...il.com> wrote:
> > On Fri, Feb 25, 2011 at 07:52:11AM +0100, Corentin Chary wrote:
> >> On Fri, Feb 25, 2011 at 6:19 AM, Keng-Yu Lin <keng-yu.lin@...onical.com> wrote:
> >> > Signed-off-by: Keng-Yu Lin <keng-yu.lin@...onical.com>
> >> > ---
> >> >  drivers/platform/x86/eeepc-wmi.c |    2 +-
> >> >  1 files changed, 1 insertions(+), 1 deletions(-)
> >> >
> >> > https://bugs.freedesktop.org/show_bug.cgi?id=31333
> >> >
> >> > diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
> >> > index d399775..da00cbc 100644
> >> > --- a/drivers/platform/x86/eeepc-wmi.c
> >> > +++ b/drivers/platform/x86/eeepc-wmi.c
> >> > @@ -113,7 +113,7 @@ static const struct key_entry eeepc_wmi_keymap[] = {
> >> >        { KE_KEY, 0x32, { KEY_MUTE } },
> >> >        { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
> >> >        { KE_KEY, 0x5d, { KEY_WLAN } },
> >> > -       { KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */
> >> > +       { KE_KEY, 0x6b, { KEY_F21 } }, /* Disable Touchpad */
> >> >        { KE_KEY, 0x82, { KEY_CAMERA } },
> >> >        { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
> >> >        { KE_KEY, 0x88, { KEY_WLAN } },
> >>
> >> Hum, I'm not very comfortable with this patch now that we got
> >> KEY_TOUCHPAD_TOGGLE.
> >> I know, it doesn't work with current Xorg, but if we continue to
> >> workaround that, it'll never be fixed.
> >>
> >> Dmitry, Matthew, any advice ?
> >
> > I believe that the kernel should use KEY_TOUCHPAD_TOGGLE and userspace
> > should use udev's key re-mapping facilities while X is unable to process
> > keycodes above 255 to adjust to the keycode du jour. If all kernel
> > drivers were to use KEY_TOUCHPAD_TOGGLE then remapping would be much
> > easier (the utility would simply check capabilities for
> > KEY_TOUCHPAD_TOGGLE and do the remap).
> 
> I submitted last month a patch to udev to do the scancode-to-F21
> mapping.  So that part should be covered for near term.
> 
> I also agree if we are going to change kernel side, we should change
> to KEY_TOUCHPAD_TOGGLE in both eeepc-laptop and eeepc-wmi.
> 
> http://git.kernel.org/?p=linux/hotplug/udev.git;a=commit;h=0d8b6be5f5238360d2d8e220d6da280f842c5358
> 

Found acer-wmi also have Touchpad toggle but mapping to F22

        {KE_KEY, 0x82, {KEY_F22} },      /* Touch Pad On/Off */

Will also send patch to udev keymap first, then change the wmi driver
mapping to KEY_TOUCHPAD_TOGGLE.


Thank's
Joey Lee

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