object files

rahul8143_at_gmail.com
Date: 09/23/05 

Date: 22 Sep 2005 19:56:56 -0700

hello,
      I know that kernel 2.4 has object files .o extensions and that
2.6 has .ko. but what exact is the difference and newer things
introduced from 2.4 to 2.6 with respect to object file structure only.