linux驱动
字符驱动https://github.com/derekmolloy/exploringBB/blob/master/extras/kernel/ebbchar/ebbchar.c
可惜的是函数不完整，只有几个
块设备驱动
http://blog.csdn.net/fulinus/article/details/8637957
网络设备驱动
http://blog.chinaunix.net/uid-25885064-id-3077098.html
Makefile
ifneq ($(KERNELRELEASE),)
obj-m := hello.o
else
KDIR := /lib/modules/$(shell uname -r)/build
all:
make -C $(KDIR) M=$(PWD) modules
clean:
rm -f *.ko *.o *.mod.o *.mod.c *.symvers
endif
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