如果添加一个驱动run_light.c到内核中,文件位于: drivers/char/run_light.c中
1) 在drivers/char/Makefile中添加:obj-$(CONFIG_RUNLIGHT) += run_light.o
2)在drivers/char/Kconfig中添加:
config RUNLIGHT
tristate "Run Light driver support"
help
Run Light Driver
3)make menuconfig - 把run_light加入到编译环境中来进行编译。