Thread (10 messages) 10 messages, 3 authors, 2007-07-03

Re: [PATCH] Input: Support for a less exclusive grab.

From: Zephaniah E. Hull <hidden>
Date: 2007-07-03 16:48:59
Also in: lkml

On Mon, Jul 02, 2007 at 05:20:44PM +0200, Vojtech Pavlik wrote:
On Tue, Jun 12, 2007 at 01:40:31AM -0400, Zephaniah E. Hull wrote:
quoted
On Tue, Jun 12, 2007 at 01:35:05AM -0400, Dmitry Torokhov wrote:
quoted
On Tuesday 12 June 2007 01:23, Zephaniah E. Hull wrote:
quoted
On Tue, Jun 12, 2007 at 01:19:59AM -0400, Dmitry Torokhov wrote:
quoted
Like I said I would love if xf86-input-evdev did not grab the
device at all.
We have to disable the legacy input handlers somehow, not doing so
simply isn't an option.
I do not follow. If user's xorg.conf does not use /dev/input/mice and
does not use "kbd" driver then grabbing is not required, is it? Now,
as far as I understand, lack of hotplug support in X is the main
obstacle for removing "mouse" and "kbd" drivers, correct?
Sadly, not quite.

The problem is that if the user is not using the mouse and kbd drivers
at all, but is instead using xf86-input-evdev, and no grabbing is done,
then all key presses end up going to the console.
X still switches to its own VT, so those keys go to the X server via the
console, and GPM also knows about console switching ...

That is a sane way how to prevent the regular console from getting
keypresses/mouse movements.
Not really, what happens when the user presses alt-F1?  A way to tell
the kernel that events from a given input device should not go to the
console has been needed since the very first time an X driver allowed
keyboard events from /dev/input/event<n>, and that still has not
changed.

We just want a more flexible approach then what we are already using[0].

I'll see about writing something up when I get back to my computers[1]
and have things set back up[2].

Zephaniah E. Hull.

0: EVIOCGRAB.
1: The night of the 10th.
2: It could be a few days after I get back.

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