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CDC-compliant embedded USB controller communication device and system with custom features support
CDC-compliant embedded USB controller communication device and system with custom features support
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机译:符合CDC的嵌入式USB控制器通信设备和系统,支持自定义功能
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摘要
There is provided a method of communicating diagnostic information between a Universal Serial Bus (USB) host and a USB device, the USB host including a host USB controller, a main driver and a host main application. The method comprises establishing a data pipe in a data class interface between the USB host and the USB device for data communication; establishing a diagnostic information pipe in the data class interface between the USB host and the USB device for diagnostic information communication; monitoring the data class interface between the host USB controller and the main driver using a filter driver; intercepting the diagnostic information in the diagnostic information pipe of the data class interface using the filter driver; directing the diagnostic information intercepted by the filter driver to a host diagnostics application; and directing the data in the data pipe of the data class interface to the main driver.
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