Re: [PATCH 1/1]: input: add support for VirtualBox touchscreenemulation to the Lifebook driver

From: Michael Thayer
Date: Tue Mar 02 2010 - 15:45:24 EST


Hello Dmitry,

Le jeudi 25 fÃvrier 2010 Ã 02:17 -0800, Dmitry Torokhov a Ãcrit :
> On Wed, Feb 24, 2010 at 12:46:29PM +0100, Michael Thayer wrote:
> > Le mercredi 24 fÃvrier 2010 Ã 02:02 -0800, Dmitry Torokhov a Ãcrit :
> > > On Tue, Feb 23, 2010 at 09:55:33PM +0100, Michael Thayer wrote:
> > > > I'm not sure, if we ended up doing a completely new device, how different it
> > > > would end up being. Emulating a touchscreen or a tablet makes sense for us as
> > > > these are both something known, which will work with existing systems without
> > > > too much tweaking
> > > > [snip]
> > > But the virtual mouse is not a touchscreen or a tablet, it behaves
> > > differently.
> > What would you suggest emulating that exists in the real world?
>
> There are not many real devices that have teh same characteristics as
> virtual mouse generating absolute coordinates. Umm, the closest would be
> a wacom tablet when used with its own mouse.
We decided in the end to emulate a USB tablet, as some other virtualisers do.
It works well out of the box with recent Linux distributions, and while older
ones recognise it as a touchpad (in fact they use it through /dev/input/mice),
it still provides a reasonable user experience until the user has installed our
guest drivers.

Thank you again for your comments and assistance.

Regards,

Michael
--
Sun Microsystems GmbH Michael Thayer
Werkstrasse 24 VirtualBox engineer
71384 Weinstadt, Germany mailto:michael.thayer@xxxxxxx

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