From: Vojtech Pavlik <vojtech@suse•cz>
To: Franz Sirl <Franz.Sirl-kernel@lauterbach•com>
Cc: Vojtech Pavlik <vojtech@suse•cz>,
Benjamin Herrenschmidt <benh@kernel•crashing.org>,
Till Straumann <Till.Straumann@TU-Berlin•de>,
linuxppc-dev@lists•linuxppc.org, George Staikos <staikos@kde•org>
Subject: Re: [patch] ignore trackpad/mouse while typing
Date: Mon, 27 Jan 2003 20:25:08 +0100 [thread overview]
Message-ID: <20030127202508.A23905@ucw.cz> (raw)
In-Reply-To: <200301272016.25024@enzo.bigblue.local>; from Franz.Sirl-kernel@lauterbach.com on Mon, Jan 27, 2003 at 08:16:24PM +0100
On Mon, Jan 27, 2003 at 08:16:24PM +0100, Franz Sirl wrote:
> On Saturday 25 January 2003 22:29, Vojtech Pavlik wrote:
> > On Sat, Jan 25, 2003 at 10:25:56PM +0100, Benjamin Herrenschmidt wrote:
> > > > > > Well... the problem happpens in console as well, and with other
> > > > > > non-X apps like MacOnLinux. Some Apple PowerBooks have
> > > > > > over-sensitive trackpad. Apple themselves implement a similar
> > > > > > mecanism in the kernel driver of OS X.
> > > > >
> > > > > Mine is one of those machines. I have to turn off gpm for sure,
> > > > > and X is quite oversensitive too (tuned it in KDE, but still this
> > > > > functionality would be very nice).
> > > >
> > > > How about implementing it in mousedev.c?
> > >
> > > Right, though it would need hooks in kbddev or something to know
> > > about keystrokes.
> >
> > It could accept keyboards as an event source for this purpose. I'd like
> > to keep this out of the input core.
>
> Hmm, this reminds me of one feature I would need in the input core to support
> 1-button mices in userspace (or at least in a totally self-contained module),
> namely the ability to register "filters" that are called early in
> input_event() and where a return value !=0 lets it return immediately from
> input_event() without processing the event.
>
> Eg. something along these lines:
>
> ret = 0;
> list_for_each_entry(filter, &dev->f_list, d_node)
> if (filter->open)
> ret |= filter->handler->event(handle, type, code,
> value);
> if (ret) return;
>
> Comments?
I don't think I want this. This *can* be solved completely in userspace,
the only problem would be that the interface to the userspace program
doing it wouldn't be the same as to evdev.c, and that the kernel *dev.c
modules could not bind to do it.
For mice, there is no problem - the mouse protocol can be implemented
over a bidirectional pipe.
For making another evdev device, you can use uinput.
You'd only have problems should you want to create a joystick device,
which you most likely won't need to do.
--
Vojtech Pavlik
SuSE Labs
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2003-01-27 19:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-29 1:34 [patch] ignore trackpad/mouse while typing Till Straumann
2002-11-29 5:31 ` Ethan Benson
2002-12-03 1:47 ` Michel Dänzer
2002-12-03 5:03 ` Till Straumann
2003-01-25 17:47 ` Vojtech Pavlik
2003-01-25 19:04 ` Benjamin Herrenschmidt
2003-01-25 20:58 ` George Staikos
2003-01-25 21:04 ` Vojtech Pavlik
2003-01-25 21:25 ` Benjamin Herrenschmidt
2003-01-25 18:04 ` Till Straumann
2003-01-26 9:59 ` Vojtech Pavlik
2003-01-25 21:29 ` Vojtech Pavlik
2003-01-27 19:16 ` Franz Sirl
2003-01-27 19:25 ` Vojtech Pavlik [this message]
2003-01-27 21:33 ` Till Straumann
2003-01-27 21:49 ` Franz Sirl
2003-01-27 22:00 ` Vojtech Pavlik
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