Re: ps2/ new data for mouse protocol (fwd msg attached)

Erik Mouw
2001-07-24T23:26:44Z

On Tue, Jul 24, 2001 at 07:32:29PM +0200, Nico Schottelius wrote:
> Have a look into the attached email before reading mine, please.
>
> Is it possible to find out about what those bytes are ?
> And is it possible to intergrate the support for other
> 3 bytes into the Linux kernel ?

So they put information about four buttons in six bytes and call that
proprietary? ROFL! How hard can it be? I think it will be fairly
straight forward to reverse engineer the format, it can't be rocket
science.

Erik

> From: "Fidel Zawde" <fzawde@synaptics.com>
> To: <nicos@pcsystems.de>
> Date: Thu, 15 Mar 2001 10:21:22 -0800
> Subject: FW: informations needed of touchpad
>
> Hello,
>
> In order to use four buttons the data packages must be larger than the
> standard 3 bytes. The data packages that the touchpad sends in absolute
> mode is 6 bytes. The information on how the buttons are inserted into the 6
> byte packet is proprietary. However, if you would like more information on
> the data packets that are sent from the touchpad you can download the
> "Synaptics Touchpad Interfacing guide" from our website www.synaptics.com.

--
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
of Electrical Engineering, Faculty of Information Technology and Systems,
Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands
Phone: +31-15-2783635 Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/