Re: [Qemu-devel] [PULL 4/7] ui: add multimedia keys

["Daniel P. Berrange" <berrange@redhat.com>]

On Fri, Jul 28, 2017 at 08:21:49AM +0200, Gerd Hoffmann wrote:
> On Thu, 2017-07-27 at 18:45 +0100, Daniel P. Berrange wrote:
> > On Thu, Jul 27, 2017 at 04:00:22PM +0200, Gerd Hoffmann wrote:
> > > Add multimedia keys to QKeyCodes and to the keymaps.
> > > 
> > > Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> > > Reviewed-by: Eric Blake <eblake@redhat.com>
> > > Message-id: 20170726152918.11995-5-kraxel@redhat.com
> > > ---
> > >  ui/input-keymap.c | 44
> > > ++++++++++++++++++++++++++++++++++++++++++++
> > >  qapi-schema.json  | 28 +++++++++++++++++++++++++++-
> > >  2 files changed, 71 insertions(+), 1 deletion(-)
> > > 

> > I'm curious what the 'AC_' prefix on all these is indicating ?
> > Do we actually need it ?
> 
> Seems to stand for "application control".
> 
> # grep " AC " include/standard-headers/linux/input-event-codes.h 
>  * AC - Application Control
> #define KEY_STOP                128     /* AC Stop */
> #define KEY_PROPS               130     /* AC Properties */
> #define KEY_UNDO                131     /* AC Undo */
> [ ... ]
> 
> I think it is better to keep it, even if it is inconsistent because we
> already have stop + find without prefix.   Just dropping the ac_ prefix
> will not work for some keys, ac_home for example.

Ok

> 
> > Missing Q_KEY_CODE_MEDIASELECT entry - presumably it was supposed
> > to map to  KEY_MEDIA
> 
> There is KEY_SELECT too, but not KEY_MEDIASELECT.  Hmm.

I found a keyboard with a key labelled "Media"  and when pressed
it generates Linux key 171  / AT set1  0xe0 0x01 which is KEY_CONFIG
and GNOME pops up the control panel when pressed !

Would be interested to know results of "showkey" and "showkey -s" for
any other keyboards with a key labelled "Media", since I don't entirely
trust this particular one to be representative of general usage.

Regards,
Daniel
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