1.PATH: ${SRCTOP}/sys/dev/io 2.PATH: ${SRCTOP}/sys/${MACHINE_CPUARCH}/${MACHINE_CPUARCH} 3 4KMOD= io 5SRCS= iodev.c io.c 6SRCS+= bus_if.h device_if.h 7 8.include <bsd.kmod.mk> 9