Packets are enqueued for transmission and dequeued by the device driver.
数据包是由队传输和出队。
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A method of interfacing with hardware that involves repeatedly reading a status register until the device has reached the awaited state. Device drivers are either polling or interrupt-driven, with the latter being more generally preferred.
种硬件交互方法,不断读状
寄存器,直到
进入等待状
。
驱动程序不是轮询的就是中断驱动的,后
种越来越成为首选的。