Importance

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Abstract

A system and method for testing the conformance of a universal serial bus (USB) system to a set of predefined USB Specifications. One embodiment of the system comprises a test system that can be used to determine whether a selected USB device provides appropriate data in response to a set of standard device requests. In another embodiment, the test system performs a series of tests to validate the interface functions of a USB driver. The system can test the device responses without having to create or compile a test program. The test system comprises a test application and a test application driver. The test application driver interfaces with the USB driver of the USB system software. The USB system software also includes a host controller driver. The host controller driver interfaces with the host controller and thereby interfaces the software on the host system with the USB interconnect and USB devices. In one embodiment, the test system incorporates a command line interpreter through which a user can enter commands to perform selected tests on the USB system. The command line interpreter enables the user to execute commands in an operating system (e.g., Unix) shell without having to interrupt a USB testing or debugging session. The user may also enter commands and perform USB system testing remotely via a communications link between the user and the system's host computer.

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First Claim