diff-minor-mode
    
    diff-minor-mode is an interactive autoloaded compiled Lisp function in `diff-mode.el'.
(diff-minor-mode &optional ARG)
Toggle Diff minor mode.
With a prefix argument ARG, enable Diff minor mode if ARG is
positive, and disable it otherwise.  If called from Lisp, enable
the mode if ARG is omitted or nil.
key             binding
---             -------
C-c		Prefix Command
C-c =		Prefix Command
C-c = TAB	diff-hunk-next
C-c = RET	diff-goto-source
C-c = SPC	scroll-up-command
C-c = -		negative-argument
C-c = 0 .. C-c = 9		digit-argument
C-c = <		beginning-of-buffer
C-c = >		end-of-buffer
C-c = ?		describe-mode
C-c = A		diff-ediff-patch
C-c = K		diff-file-kill
C-c = N		diff-file-next
C-c = P		diff-file-prev
C-c = R		diff-reverse-direction
C-c = W		widen
C-c = g		revert-buffer
C-c = h		describe-mode
C-c = k		diff-hunk-kill
C-c = n		diff-hunk-next
C-c = o		diff-goto-source
C-c = p		diff-hunk-prev
C-c = q		quit-window
C-c = r		diff-restrict-view
C-c = {		diff-file-prev
C-c = }		diff-file-next
C-c = DEL	scroll-down-command
C-c = S-SPC	scroll-down-command
C-c = <backtab>			diff-hunk-prev
C-c = <mouse-2>			diff-goto-source
C-c = <remap>			Prefix Command
C-c = <remap> <undo>		diff-undo