Your interrupt routine does a little bit of work , schedules a dpc , and returns 你的中断程序完成一些工作,确定一个延迟程序调用(的时间) ,并返回。
Drivers for devices that generate hardware interrupts will have an interrupt service routine ( isr ) and a deferred procedure call ( dpc ) routine 对于普通硬件中断设备的驱动要具有中断服务程序( isr )和一个延迟程序调用( dpc )程序。