linux-kernel - Re: [PATCH 5/7] input: Add keycodes used by Lenovo Carbon X1 2014

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Date:	Tue, 24 Feb 2015 10:00:34 +0100
From:	Bastien Nocera <hadess@...ess.net>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
	Darren Hart <dvhart@...radead.org>,
	ibm-acpi-devel@...ts.sourceforge.net,
	platform-driver-x86@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-input <linux-input@...r.kernel.org>,
	Jiri Kosina <jkosina@...e.cz>
Subject: Re: [PATCH 5/7] input: Add keycodes used by Lenovo Carbon X1 2014

On Fri, 2015-02-20 at 19:54 +0100, Bastien Nocera wrote:
> Hey Dmitry,
> 
> On Fri, 2015-02-20 at 10:40 -0800, Dmitry Torokhov wrote:
> > On Fri, Feb 20, 2015 at 10:04:04AM -0500, Benjamin Tissoires wrote:
> > > On Fri, Feb 20, 2015 at 9:44 AM, Bastien Nocera <hadess@...ess.net> wrote:
> > > > Signed-off-by: Bastien Nocera <hadess@...ess.net>
> > > > ---
> > > >  include/uapi/linux/input.h | 10 ++++++++++
> > > >  1 file changed, 10 insertions(+)
> > > >
> > > > diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
> > > > index b0a8130..affe40e 100644
> > > > --- a/include/uapi/linux/input.h
> > > > +++ b/include/uapi/linux/input.h
> > > > @@ -740,6 +740,16 @@ struct input_keymap_entry {
> > > >  #define KEY_BRIGHTNESS_MIN             0x250   /* Set Brightness to Minimum */
> > > >  #define KEY_BRIGHTNESS_MAX             0x251   /* Set Brightness to Maximum */
> > > >
> > > > +#define KEY_CLIPPING_TOOL              0x252   /* Screenshot clipping tool */
> > 
> > Do we have users for this?
> 
> Bearing in mind that most of those keys won't be usable in X11, but
> should be in Wayland, it might take a little while to actually get used,
> but I would add support for this "clipping tool" key in GNOME. Most
> likely to start a screenshoting tool in selection mode.
> 
> > > > +#define KEY_CLOUD                      0x253   /* Cloud Settings */
> > 
> > Just no. What is cloud settings? Use KEY_VENDOR if you must for this vendor
> > "added value" junk they come up on keyboards year after year. It used to be
> > WWW, not cloud, I bet in 2016 someone will come up with "IoT"-dedicated key.
> 
> The button actually looks like a Cloud, see page 46 of this guide:
> http://www.lenovo.com/shop/americas/content/user_guides/x1carbon_2_ug_en.pdf
> 
> In GNOME, I would make this start the "Online Accounts" configuration.
> I'm fine with renaming it, but I would prefer something more precise
> than KEY_VENDOR. KEY_WWW would be fine by me.
> 
> > > > +#define KEY_CAMERA_GESTURES            0x254   /* Toggle Camera gestures */
> 
> This wouldn't get used directly in GNOME.
> 
> > > > +#define KEY_NEW_TAB                    0x255   /* Open a new tab */
> 
> This would get used.
> 
> > > > +#define KEY_MICUP                      0x256   /* Microphone Up */
> > > > +#define KEY_MICDOWN                    0x257   /* Microphone Down */
> 
> Those would get used as well.
> 
> > > > +#define KEY_MICCANCEL_MODE             0x258   /* Toggle Microphone cancellation mode */
> > > > +#define KEY_CAMERA_ZOOM_MODE           0x259   /* Toggle camera zoom mode */
> 
> These 2 wouldn't get used directly in GNOME.
> 
> > > > +#define KEY_ROTATE_DISPLAY             0x25a   /* Rotate screen by 90 degrees */
> > > > +
> > > 
> > > This one should be acked by Dmitry (in CC)
> > > 
> > 
> > Some of these (like microphone volume up/down) are generic and reasonable, but
> > I need to know if there will be any users for these newly defined keys.
> 
> Answers to this in-line above. I'm fine with replacing the keycodes for
> those keys with something that more or less corresponds to the
> pictograms, especially the "Toggle voice-recognition" and "Toggle
> camera-gestures function" are present in all the keyboard modes.

Any more ideas about which keycodes I should add and which ones I should
replace?

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