Adding the following snippet to you .vimrc will set up Vim to use cscope more efficiently:
if has('cscope') set cscopetag cscopeverbose if has('quickfix') set cscopequickfix=s-,c-,d-,i-,t-,e- endif cnoreabbrev csa cs add cnoreabbrev csf cs find cnoreabbrev csk cs kill cnoreabbrev csr cs reset cnoreabbrev css cs show cnoreabbrev csh cs help command -nargs=0 Cscope cs add $VIMSRC/src/cscope.out $VIMSRC/src endif
Type :Cscope --help to see command