obj-m += fortytwo-debugfs.o 
fortytwo-debugfs-y = main.o id.o foo.o
PWD := $(CURDIR) 

all: 
	$(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules 

clean: 
	$(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean