Wireless presenter: buttons don't work

[Marcio Rosa da Silva <mmrsva@gmail.com>]

Hi all!

I have a wireless presenter (USB mouse with laser pointer) that isn't 
recognized well in linux. It has a trackball in the upper side together 
with 4 buttons: left/right mouse click and PgUp/PgDown.

The trackball works fine and (to my surprise) the PgUp/PgDown buttons 
also. The problem is with the left/right click: they are just ignored. I 
tried to use xev to see what they are sending, and they don't send any code.

In windows this mouse is recognized without any extra drivers. I just 
plug it and it is recognized as a standard mouse, what makes me think 
that it should use some standard protocol and should be also recognized 
by linux. My other USB mouse is recognized as the same type of device by 
windows but this one works with linux.

I tried also a

cat /cat /dev/input/event0 # for my keyboard
cat /cat /dev/input/event2 # for my other USB mouse
cat /cat /dev/input/event4 # for the wireless presenter

When listening to event0, keys generate noise on screen but the buttons 
of the presenter not (PgUP/PgDown)
When listening to event2, the mouse movement and the buttons send noise
when listening to event4, only the trackball movement send noise -- no 
buttons send anything

Any ideas? What can I try?

Thanks!

Marcio