GitHub - tomxue/interrupt: to show how to make an interrupt handler under Linux

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Makefile		Makefile
README		README
bugs		bugs
gpio_interrupt.c		gpio_interrupt.c

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make:
    make ARCH=arm  -C /lib/modules/3.0.4-x3/build M=$(pwd) modules


以下内容如果加入Makefile，会导致make出来的ko文件版本错误(3.0.4, 而不是3.0.4-x3)，原因不明

all: gpio_interrupt.c
	make ARCH=arm  -C /lib/modules/3.0.4-x3/build M=$(pwd) modules

clean:
	rm *.ko *.o Module.symvers *.mod.*

TODO
    Bug: irq type is set to be falling edge triggered but low level triggered indeed
    Answer: real test shows 
                            when fixed to GND the interrupt wasn't produced
                            when touched GND frequently the interrupts were produced simultaneously