key_driver中断和查询模式
........................\.key.ko.cmd
........................\.key.mod.o.cmd
........................\.key.o.cmd
........................\.tmp_versions
........................\.............\key.mod
........................\key.c
........................\key.ko
........................\key.mod.c
........................\key.mod.o
........................\key.o
........................\key_irq
........................\key_irq.c
........................\key_poll
........................\key_poll.c
........................\Makefile
........................\Module.symvers
........................\modules.order