初学者求助：开发板上insmod失败，求解

wooder20000

我在 KERNELDIR = /home/yang/linux-2.6.31.3/include/linux/serio.h 中找到有这几个函数的定义了，是没编译进去吗？

insmod出错信息：
tb: Unknown symbol serio_open
tb: Unknown symbol serio_close
tb: Unknown symbol __serio_register_driver
tb: Unknown symbol serio_unregister_driver
insmod: cannot insert './tb.ko': unknown symbol in module (-1): No such file or directory

我的makefile：
ifeq ($(KERNELRELEASE),)
        KERNELDIR = /home/yang/linux-2.6.31.3/

    PWD := $(shell pwd)
modules:
        $(MAKE) -C $(KERNELDIR) M=$(PWD) modules

modules_install:
        $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install

clean:
        rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versions

.PHONY: modules modules_install clean

else
    # called from kernel build system: just declare what our modules are
    obj-m := tb.o
endif

make打印的warning信息：
WARNING: "serio_open" [/home/yang/.ko] undefined!
WARNING: "serio_close" [/home/yang/.ko] undefined!
WARNING: "__serio_register_driver" [/home/yang/.ko] undefined!
WARNING: "serio_unregister_driver" [/home/yang/.ko] undefined!

wooder20000

为什么只有 open  close和register 提示出错呢？ 我还用了好多serio_ 的函数，却没有提示未定义....

wooder20000

解决了，内核没有配置serio