obj-m += drv.o CC=gcc ccflags-y += "-g" ccflags-y += "-O0" all: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules # compile the trigger $(CC) trigger.c -O2 -o trigger clean: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean rm -fr ./trigger