1. 放置代码

在./source/driver/char下放置模块文件夹

2. Makefile和Kconfig

makefile文件参考

obj-$(AAA_LED)              += AAA-led.o

Kconfig文件参考

config AAA_LEDtristate "Phytium macb led control module"depends on XXXdefault mhelpIf you have a network (Ethernet) controller of this type andwant to use it control port led say Y or M here.

3. 修改字符设备驱动文件

修改./source/driver/char/Kconfig
添加

source "drivers/char/AAA_led/Kconfig"

与其AAA的kconfig关联

修改./source/driver/char/Makefile
添加
obj-$(CONFIG_AAA_LED) += AAA/AAA-led.o
告诉char根据这个config编译