Hello,

I have learned diff command.

I made diffs file from 
CVS current version
if_lan91cxx.c
and my if_lan91cxx.c.

To retrieve my version
$ patch [CVS current version]if_lan91cxx.c diffs

I tested and confirmed.

For fear of mishap,I send also CVS current version if_lan91cxx.c.

Masahiro Ariga