obj-m:=1.o                                                  
CURRENT_PATH:=$(shell pwd)                                             
LINUX_KERNEL:=$(shell uname -r)                                      
LINUX_KERNEL_PATH:=/usr/src/linux-headers-$(LINUX_KERNEL)
all:
	make -C $(LINUX_KERNEL_PATH) M=$(CURRENT_PATH) modules           
clean:
	make -C $(LINUX_KERNEL_PATH) M=$(CURRENT_PATH) clean