初学者求助：开发板上insmod失败，求解
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" undefined!
WARNING: "serio_close" undefined!
WARNING: "__serio_register_driver" undefined!
WARNING: "serio_unregister_driver" undefined! 为什么只有 openclose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.... 解决了，内核没有配置serio
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