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USB Bandwidth Allocation

Last Updated: 2/15/2017

This section provides guidance concerning the careful management of USB bandwidth.

It is the responsibility of every USB client driver to minimize the USB bandwidth it uses, and return unused bandwidth to the free bandwidth pool as promptly as possible.

This section includes the following topics:

Why is my USB driver getting out of bandwidth errors?

USB Transfer and Packet Sizes

Delimiting USB Data Transfers With Packets Smaller Than wMaxPacketSize

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