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Re: [Qemu-devel] VNC terminal server?

From: Leonardo E. Reiter
Subject: Re: [Qemu-devel] VNC terminal server?
Date: Sat, 08 Apr 2006 15:33:45 -0400
User-agent: Mozilla Thunderbird 1.0.7 (X11/20051013)

The Win4Lin Pro version is not a driver, but rather a high-priority Windows userspace thread. We try to avoid drivers as much as possible because they are a serious obstacle to supporting new Windows versions and service packs as they come out. I can't comment on VMware's approach to be honest.

I will say that using a device that has readily and/or publicly available drivers is probably ideal, such as a Wacom tablet. We are trying to move to more of a device model on Win4Lin Pro for performance reasons, which is why I am interested in this approach. But letting Microsoft maintain the guest driver, if it's built into Windows, is the best solution. It also guarantees the broadest possible guest support in general - whether it be Linux, Mac OS X, etc.

If anyone has a link to Anthony Liguori's driver, I'd be glad to look into fixing whatever may be wrong with it and posting the patches.


Leo Reiter

andrzej zaborowski wrote:
I thought Anthony Liguori had already written a Wacom tablet emulator
for QEMU and that worked fine except it supports only one button. I
don't remember if this support was complete and I don't have a link to
the patch.

With this you don't need to disable mouse acceleration in the guest OS
because it makes no sense to accelerate a tablet.

On the other hand writing a guest-side driver for QEMU would leave
room for further improvements like hiding/showing or
grabbing/releasing the mouse at specific moments. Or, possibly reusing
tools from Win4Lin or VMtools from VMware.

Leonardo E. Reiter
Vice President of Product Development, CTO

Win4Lin, Inc.
Virtual Computing from Desktop to Data Center
Main: +1 512 339 7979
Fax: +1 512 532 6501

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