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AN45471 - Create Your Own USB Vendor Commands Using FX2LP | Cypress Semiconductor

AN45471 - Create Your Own USB Vendor Commands Using FX2LP

Last Updated: 
Aug 13, 2017
Version: 
*E

Introduction

Standard USB products, such as keyboards, mice, and disk drives, follow a class of devices defined by the USB Implementers Forum (USB-IF). These device classes provide the standardization that has helped make USB successful.

However, the architects of USB realized that not all devices would fit into a standard class. In addition, sometimes there are advantages to adding functionality to a class. To handle these situations, the architects created the “vendor-specific” request type.

Translated documents are for reference only. We recommend that you refer to the English-language version of a document if you are engaged in development of a design.