Powerbook G4 configure some stuff

[Dimitrios Petris <p3010022@dias.aueb.gr>]

Hello!!
I ve just bought my new powerbook G4 and installed debian linux on it  
but i seem to have some problems and seek for help.
Firstly i don't know what type is my trackpad so i can make it work  
properly, because at this point it doesn't work at all.What can i do  
to make it work?
Secondly i don't know what type of soundcard i have so i cann choose  
the right parameter in my kernel config.
I also cannot make my internal modem work!
And last is there any module to make the function keys for the  
monitor brigthness and volume control etc to work as they do in MacOSX?

To sum up I need help with my trackpad, soundcard,internal modem and  
function keys!

thanx a lot!!!

P3