Freescale Semiconductor TWR-MCF52259-Ethenet - Manual (Page 97)

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The General USB Process
How Does the Host Know a Device’s Requirements?
These requirements are communicated to the host
through a hierarchy of C program descriptors. The types
of descriptors include:
1. Device Descriptors
2. Configuration Descriptors
3. Interface Descriptors
4. Endpoint Descriptors
5. String Descriptors