(choose ur kernel ver.)
$ sudo apt-get install linux-headers-2.6.15-27-686$ sudo ln -s /usr/src/linux-headers-2.6.15-27-686/ buildif you have a file my_module.c, use this Makefile:
obj-m := my_module.oKDIR := /lib/modules/$(shell uname -r)/buildPWD := $(shell pwd)default: $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules