device driver - Kernel X XFree86 - USB - distribution

[Edgard Lima]

Hi All,   I'm in chager of developing a driver for a pointing device (absolute coordinates).   This device has two interfaces, Serial and USB.   I kwow it is possible to do XFree86 drivers for Serial and I've seen such source code at XFree86 project.   1- Is it possible to do the same thing for the USB interface? or Do I have to write a linux kernel driver? 2- What are the advantages and disadvantages of XFree86 driver and kernel driver (write/debug easiness, performance, etc...)? 3- What do I've to do in order to my driver be part of XFree86 project? 4- Is it possible do not include the XFree86 driver into XFree86 project, but install a binary version of it after Linux (and X11) is already installed and running?   thanks very much in advance, Edgard Lima [EMAIL PROTECTED]