Research of usb, for tool selection is very discreet, better have a usb logic analyzer, but for ordinary users, can't afford to buy expensive tools, here give a usbtrace, fully functional, with usb package grab, usb device category analysis and so on, is good, there is a crack of the main program, set up first, then use it to cover the main program can be used, other DLL is a plug-in, can help analysis class. To be a man will be good!

usbtrace
........\HIDDecoder.dll
........\HubDecoder.dll
........\MSDDecoder.dll
........\SICDecoder.dll
........\USBTrace.exe
........\USBTrace_Build_46_280508_Installer.exe
........\VendorDecoder.dll
........\VidDecoder.dll
........\WCDecoder.dll

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