The main one is to initiate a lot of data transfers on the MFC, and then let the MFC take control of deciding the ordering for processing.

主要方法是在MF c上启动许多数据传输，然后让MFC决定处理的次序。

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Device drivers use these routines to request various types of data transfers (control, interrupt, bulk, or isochronous).

设备驱动程序使用这些例程来请求各种类型的数据传输(control、interrupt、bulk或isochronous)。

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Control transfers: These are short data packets for device control and configuration, particularly at attach time.

控制传输：这些是一些短的数据包，用于设备控制和配置，特别是在设备附加到主机上时。

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