abbr.interrupt request 中断请求
Normally, each device needs a dedicated IRQ ( except for USB and some PCI devices ) .
你对一部计算机附加的每个装置可能需要它自己的 IRQ 端口.
You can then assign a different IRQ to that network card.
然后你能分配不同的IRQ到 那网络备置卡片.
How do I know if an IRQ or exception is firing?
如何得知一个IRQ或异常已经被使用了?