About Logman english
Prompt" on the Start screen. Right-click on the Command Prompt shown in the result, and select Run as administrator .Disconnect the USB devices that you are not interested in. Fewer devices result in smaller traces making it easier to read and analyze.Start a capture session by pasting this sequence of commands: logman create trace -n usbtrace -o %SystemRoot%\Tracing\usbtrace.etl -nb 128 640 -bs 128 logman update trace -n usbtrace -p Microsoft-Windows-USB-USBXHCI (Default,PartialDataBusTrace) logman update trace -n usbtrace -p Microsoft-Windows-USB-UCX (Default,PartialDataBusTrace) logman update trace -n usbtrace -p Microsoft-Windows-USB-USBHUB3 (Default,PartialDataBusTrace) logman update trace -n usbtrace -p Microsoft-Windows-USB-USBPORT logman update trace -n usbtrace -p Microsoft-Windows-USB-USBHUB logman update trace -n usbtrace -p Microsoft-Windows-Kernel-IoTrace 0 2 logman start -n usbtrace Perform the action that you want to capture. For example, plug in a USB flash drive that shows up as an Unknown device in Device Manager. The session captures device enumeration activities . Keep the command prompt window open.Stop the session when you're finished by pasting this sequence of commands: logman stop -n usbtrace logman delete -n usbtrace move /Y %SystemRoot%\Tracing\usbtrace_000001.etl %SystemRoot%\Tracing\usbtrace.etl The preceding capture session generates an etl file, named usbtrace.etl. The trace file is stored at %SystemRoot%\Tracing\usbtrace.etl (C:\Windows\Tracing\usbtrace.etl). Move the file to another location or rename it in order to avoid overwriting it when you capture the next session.The file contains event traces from the USB 3.0 and USB 2.0 driver stacks. If you want to pare down the trace to just one USB driver stack, remove the other driver stack from your next trace session. You can do so by modifying the command sequence shown in step 3 to remove the "logman update" lines corresponding to the driver stack you want to remove from the trace session. You can find the driver names comprising each driver stack at the beginning of this post.USB ETW ParsersYou can view USB ETW event traces using Microsoft Network Monitor, also referred to as Netmon. Netmon won’t parse the trace out of the box; it also requires USB ETW parsers, which are text files written in Network Monitor Parser Language (NPL) that describe the structure of USB ETW
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Combined trace with Activity IDs. Skip to 33:30 for this ETW content. Here is a direct link if you have any problems.USB driver stack event traces in Windows are a powerful tool for diagnosis. We hope that you and the USB hardware ecosystem will benefit from these improvements in Windows 8. Boot tracing (special tracing commands)(added Feb. 8 2013)If you want to view USB event traces of the activity that takes place when the system boots, you need a different set of commands. This way of capturing traces can be useful if you encounter an issue that occurs only when the system boots, rather than while the system is running. Start the trace by entering the following commands in an elevated command window: logman create trace autosession\UsbBootTrace -o UsbBootTrace.etl -ets -nb 128 640 -bs 128 logman update autosession\UsbBootTrace -ets -p Microsoft-Windows-USB-USBPORT logman update autosession\UsbBootTrace -ets -p Microsoft-Windows-USB-USBHUB logman update autosession\UsbBootTrace -ets -p Microsoft-Windows-USB-USBXHCI Default logman update autosession\UsbBootTrace -ets -p Microsoft-Windows-USB-UCX Default,PartialDataBusTrace,StateMachine logman update autosession\UsbBootTrace -ets -p Microsoft-Windows-USB-USBHUB3 Default,PartialDataBusTrace,StateMachine Then reboot. When you're ready to stop the trace, enter the following commands in an elevated command window: logman stop UsbBootTrace -ets logman delete autosession\UsbBootTrace -ets In this case, you will find the trace file (UsbBootTrace.etl) in the directory where you ran the commands that started the trace. Note that if you reboot before you stop the trace, the trace file will be overwritten.- Philip RiesSoftware development engineer on the core USB team.
