> Im on redhat 7.2 ....... can you elaborate a little???

Yes, sorry about that.  First, I am assuming that you are running some
version of the X windowing system.  

The trick is to have a mouse daemon running that can multiplex your
pointing devices (make their inputs available in one place).  On OpenBSD
there is a device, /dev/wsmux, which is a multiplexer for your input
devices.

>From man wsmux(4) on OpenBSD:

DESCRIPTION
     The wsmux is a pseudo-device driver that allows several
wscons(4) input devices to have their events multiplexed into one stream.

It appears as though this /dev/wsmux device takes the inputs from all
/dev/wsmouseXXX devices and multiplexes them into one stream available at
/dev/wsmouse (with no number designating which wsmouse).

Now each of my input devices, in this case my touchpad, eraser mouse, and
usb mouse are all accessible as /dev/wsmouseXXX devices.  So, when I
configure X windows I tell it to use /dev/wsmouse as my pointing device
(mouse), and thus I can use any of the three pointing devices at any time
(as all of their input goes to this one single stream, which is the only
stream X windows is reading).

I am suggesting that you seek out something similar on Linux.  On FreeBSD
this worked for me out of the box, even in the standard console (without X
running at all).  Perhaps doing a "man -k mouse" or "man -k mux" or
something along those lines might help you out.

The bottom line is you need to have the input from *all* of the pointing
devices you want working to go to a single place and have X windows read
from that place.  That way when you move the usb mouse, X windows knows
you moved the pointer.  Likewise, when you move any other pointing device,
X windows will see that too.

Hope that helps.  I will ask my Linux buddy for more specifics when he
gets into the office, and will gladly mail you more info as I get it.

Rick


PS  My laptop is a Dell Inspiron 8000, so I believe we have comparable
hardware (not that that should matter).


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