MODULE DEPENDENCIES :

There are certain modules which rely on other modules for their functioning  & operate successfully.Moreover , we might need to remove some certain  modules which are not operating at the moment so we need to list dependencies.
Dependencies can be checked by :
i)lsmod -

Module                  Size  Used by
iptable_filter          1790  1 
ip_tables               7706  1 iptable_filter
x_tables                8327  1 ip_tables
vmhgfs                 41755  0  

 Used by cloumn depict dependencies .

ii)Use modinfo mudule_name
iii)Use # cat /lib/modules/3.9.10-100.fc17.x86_64/modules.dep
to list all the dependencies of all the modules of the kernel regardless of wheather modules are loaded or not .