将自己编译的驱动加载进内核的步骤

1、确定驱动文件存放的位置
2、修改该目录下的Makefile 和 Kconfig 文件

    修改    Makefile：
                obj-$(CONFIG_KEY_DRIVER)    += Key_Driver.o

     修改    Kconfig：
               config KEY_DRIVER
                tristate"KEY_DRIVER"
                default y
                 ---help---
                If you say Y here,support for the key driver with computer interface will be
                 compiled into he kernel and accessible via device node. You can also say M here
                and the driver will be built as a module named Key_Driver.ko.
             
                 If unsure, say Y.

        配置完成之后，make menuconfig 就可以找到自己的驱动文件了