ifneq ($(KERNELRELEASE), )
obj-m := main.o
else
#KDIR  	?= /opt/fsl-kernel/x86/linux-4.9.140
KDIR  	?= /opt/fsl-kernel/arm64/linux-4.9.140
#PWD		:= $(shell pwd)
all:
	make -C $(KDIR) M=$(PWD) modules
clean:
	make -C $(KDIR) M=$(PWD) clean
endif