;; set c basic offset
(defun linux-c-mode ()
;"C mode with adjusted defaults for use with the Linux kernel."
(interactive)
(c-mode)
(c-set-style "K&R")
(setq c-basic-offset 8))

 

(setq auto-mode-alist
      (append '(("\\.h$"     . linux-c-mode)
                ("\\.c$"     . linux-c-mode)
                ) auto-mode-alist))