Invoking e100_open from userspace

[Prabhu nath]

Dear All,

            I am trying to analyse ethernet and rionet driver. Both the
drives are registered with the kernel through
   register_netdev().
   Each driver has their own functions registered such as e100_open(),
rionet_open(). How to trigger this functions from the user space.

   Appreciate your help.

Regards,
Prabhu