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| <section id="usb-monitor-support"> |
| <h1>USB Monitor support<a class="headerlink" href="#usb-monitor-support" title="Permalink to this heading"></a></h1> |
| <section id="wireshark"> |
| <h2>Wireshark<a class="headerlink" href="#wireshark" title="Permalink to this heading"></a></h2> |
| <p>The wireshark software USB capture can capture URBs (USB Request Blocks) rather than raw USB packets when device connect to host directly. |
| To capture raw USB packets, a sniffer is needed.</p> |
| <section id="linux"> |
| <h3>Linux<a class="headerlink" href="#linux" title="Permalink to this heading"></a></h3> |
| <ol class="arabic"> |
| <li><p>Install Wireshark:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>sudo apt update |
| sudo apt install wireshark |
| </pre></div> |
| </div> |
| </li> |
| <li><p>(Optional) Configure Wireshark</p></li> |
| </ol> |
| <blockquote> |
| <div><p>Wireshark official documentation: <a class="reference external" href="https://wiki.wireshark.org/CaptureSetup/USB">https://wiki.wireshark.org/CaptureSetup/USB</a></p> |
| </div></blockquote> |
| <ol class="arabic" start="3"> |
| <li><p>Load the usbmon kernel module and run Wireshark:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>sudo modprobe usbmon |
| sudo wireshark |
| </pre></div> |
| </div> |
| </li> |
| <li><p>Find bus the device connects:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ adb devices -l |
| List of devices attached |
| 1234 device usb:1-9.4 product:adb dev model:adb_board device:NuttX device transport_id:1000 |
| |
| $ dmesg |
| [3713722.861582] usb 1-9.4: New USB device found, idVendor=18d1, idProduct=4e11, bcdDevice= 1.01 |
| |
| $ lsusb |
| Bus 001 Device 035: ID 18d1:4e11 Google Inc. Nexus One |
| </pre></div> |
| </div> |
| </li> |
| <li><p>Filter address</p></li> |
| </ol> |
| <blockquote> |
| <div><ul class="simple"> |
| <li><p>Select usbmon (Bus 001): usbmon1</p></li> |
| <li><p>Wireshark filter (Bus 001 Device 035): usb.addr[0:4] == “1.35”</p></li> |
| </ul> |
| </div></blockquote> |
| <ol class="arabic simple" start="6"> |
| <li><p>Example</p></li> |
| </ol> |
| <blockquote> |
| <div><p>Capturing ADB packets with filter (usb.addr[0:4] == “1.35”), on board <a class="reference external" href="https://nuttx.apache.org/docs/latest/platforms/xtensa/esp32s3/boards/esp32s3-devkit/index.html#adb">ESP32S3-DevKit:ADB</a>:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>adb -s 1234 shell ls /dev/ |
| </pre></div> |
| </div> |
| <p>The example PcapNg(Packet CAPture Next Generation) file can be downloaded from <a class="reference download internal" download="" href="../../../_downloads/e20cd83fbf8854043594ed3552977374/usbmonitor_wireshark_linux_example_adb.pcapng"><code class="xref download docutils literal notranslate"><span class="pre">here</span></code></a>.</p> |
| </div></blockquote> |
| <figure class="align-center" id="id1"> |
| <img alt="../../../_images/usbmonitor_wireshark_linux_example_adb.png" src="../../../_images/usbmonitor_wireshark_linux_example_adb.png" /> |
| <figcaption> |
| <p><span class="caption-text">Wireshark Capturing</span><a class="headerlink" href="#id1" title="Permalink to this image"></a></p> |
| </figcaption> |
| </figure> |
| </section> |
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