{"id":107618,"date":"2026-09-19T22:40:43","date_gmt":"2026-09-19T14:40:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/107618.html"},"modified":"2026-09-19T22:40:43","modified_gmt":"2026-09-19T14:40:43","slug":"usb%e6%9e%9a%e4%b8%be%e3%80%81%e5%8d%8f%e5%95%86%e3%80%81%e4%bc%a0%e8%be%93%ef%bc%9a%e4%bb%a5usb%e7%9b%b8%e6%9c%ba%e4%b8%ba%e4%be%8b%e7%9c%8b%e8%af%86%e5%88%ab%e4%b8%8e%e6%a0%bc%e5%bc%8f%e5%8d%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/107618.html","title":{"rendered":"USB\u679a\u4e3e\u3001\u534f\u5546\u3001\u4f20\u8f93\uff1a\u4ee5USB\u76f8\u673a\u4e3a\u4f8b\u770b\u8bc6\u522b\u4e0e\u683c\u5f0f\u534f\u5546"},"content":{"rendered":"

\u679a\u4e3e\u3001\u534f\u5546\u3001\u4f20\u8f93：\u4ee5\u76f8\u673a\u4e3a\u4f8b\u770b\u8bc6\u522b\u4e0e\u683c\u5f0f\u534f\u5546<\/h2>\n

\u6982\u8ff0：\u4e3b\u673a\u80fd\u591f\u679a\u4e3e\u4e00\u9897\u4ece\u672a\u89c1\u8fc7\u7684\u82af\u7247，\u5e76\u975e\u56e0\u4e3a\u4e3b\u673a\u9884\u5148\u8bc6\u522b\u4e86\u8be5\u82af\u7247，\u800c\u662f\u56e0\u4e3a\u8bbe\u5907\u6309 USB \u89c4\u8303\u7528\u63cf\u8ff0\u7b26\u63cf\u8ff0\u81ea\u8eab\u3002\u63cf\u8ff0\u7b26\u8bf4\u660e\u8bbe\u5907\u7684\u8eab\u4efd\u4e0e\u63a5\u53e3\u6570\u91cf，Probe\/Commit \u534f\u5546\u786e\u5b9a\u8f93\u51fa\u683c\u5f0f\u3002<\/p>\n

1. \u57fa\u7840：\u534f\u8bae\u5206\u5c42\u3001\u53cc\u65b9\u89d2\u8272\u4e0e\u901a\u4fe1\u65b9\u5f0f<\/h3>\n

\u8981\u7406\u89e3\u8fd9\u5957\u8fc7\u7a0b，\u5148\u5206\u6e05\u4e24\u5c42\u89c4\u8303，\u5b83\u4eec\u53e0\u52a0\u5728\u4e00\u8d77，\u804c\u8d23\u4e0d\u540c：<\/p>\n\n\u5c42\u89c4\u8303\u8d1f\u8d23\u5185\u5bb9<\/tr>\n\n\n\n
\u603b\u7ebf\u5c42<\/td>\nUSB（Universal Serial Bus，\u901a\u7528\u4e32\u884c\u603b\u7ebf）<\/td>\n\u7535\u6c14\u8fde\u63a5\u3001\u5bfb\u5740\u3001\u6570\u636e\u5305\u7684\u6536\u53d1\u3001\u56db\u79cd\u4f20\u8f93\u7c7b\u578b<\/td>\n<\/tr>\n
\u8bbe\u5907\u7c7b\u5c42<\/td>\nUVC（USB Video Class，USB \u89c6\u9891\u7c7b）<\/td>\n\u6444\u50cf\u5934\u7684\u63cf\u8ff0\u7b26\u683c\u5f0f\u3001\u63a7\u5236\u8bf7\u6c42\u3001\u6570\u636e\u683c\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

UVC \u5efa\u7acb\u5728 USB \u4e4b\u4e0a\u3002USB \u53ea\u8d1f\u8d23\u628a\u5b57\u8282\u9001\u5230\u67d0\u4e2a\u7aef\u70b9，\u4e0d\u5173\u5fc3\u8fd9\u4e9b\u5b57\u8282\u627f\u8f7d\u7684\u662f\u89c6\u9891\u8fd8\u662f\u5176\u4ed6\u5185\u5bb9；UVC \u624d\u89c4\u5b9a\u6444\u50cf\u5934\u7684\u63cf\u8ff0\u7b26\u683c\u5f0f\u4e0e\u53ef\u7528\u7684\u63a7\u5236\u8bf7\u6c42\u3002<\/p>\n

\u53cc\u65b9\u7684\u89d2\u8272\u5206\u5de5\u662f\u7406\u89e3\u540e\u7eed\u6d41\u7a0b\u7684\u524d\u63d0：<\/p>\n

    \n
  • \u4e3b\u673a（PC \u4e0a\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e0e\u9a71\u52a8）：\u53d1\u8d77\u6240\u6709\u8bf7\u6c42\u3001\u4e3a\u8bbe\u5907\u5206\u914d\u5730\u5740\u3001\u51b3\u5b9a\u52a0\u8f7d\u54ea\u4e2a\u9a71\u52a8\u3001\u51b3\u5b9a\u53d6\u6570\u636e\u7684\u65f6\u673a\u3002<\/li>\n
  • \u8bbe\u5907（MCU \u52a0\u6444\u50cf\u5934\u56fa\u4ef6）：\u53ea\u8d1f\u8d23\u5e94\u7b54\u3002\u8bbe\u5907\u4e0d\u80fd\u4e3b\u52a8\u5411\u4e3b\u673a\u53d1\u9001\u6570\u636e，\u89c6\u9891\u6570\u636e\u540c\u6837\u7531\u4e3b\u673a\u53d1\u8d77\u8bfb\u53d6：\u4e3b\u673a\u67e5\u8be2\u7aef\u70b9\u662f\u5426\u6709\u6570\u636e，\u8bbe\u5907\u624d\u8fd4\u56de\u6570\u636e\u3002<\/li>\n<\/ul>\n

    \u8bbe\u5907\u4fa7\u8981\u80fd\u5b8c\u6210\u5e94\u7b54，\u4ee5\u4e0b\u4e09\u9879\u90fd\u662f\u5fc5\u9700\u7684：<\/p>\n\n\u524d\u63d0\u4f5c\u7528<\/tr>\n\n\n\n\n
    USB \u8bbe\u5907\u63a7\u5236\u5668（\u542b PHY \u7269\u7406\u5c42）<\/td>\n\u7535\u6c14\u5c42\u6536\u53d1，D+ \u4e0a\u62c9，\u7aef\u70b9 FIFO<\/td>\n<\/tr>\n
    \u8bbe\u5907\u534f\u8bae\u6808<\/td>\n\u89e3\u6790\u6807\u51c6\u8bf7\u6c42，\u7ba1\u7406\u5730\u5740\u3001\u7aef\u70b9\u4e0e\u72b6\u6001\u673a<\/td>\n<\/tr>\n
    \u4e00\u4efd\u81ea\u63cf\u8ff0\u7684\u63cf\u8ff0\u7b26\u8868<\/td>\n\u8bbe\u5907\u8eab\u4efd\u7684\u552f\u4e00\u4fe1\u606f\u6e90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    USB \u5b9a\u4e49\u4e86\u56db\u79cd\u4f20\u8f93\u7c7b\u578b，\u672c\u6587\u6d89\u53ca\u524d\u4e09\u79cd，\u7b2c\u56db\u79cd\u662f\u89c6\u9891\u6d41\u7684\u53ef\u66ff\u4ee3\u65b9\u6848：<\/p>\n\n\u4f20\u8f93\u7c7b\u578b\u7528\u5728\u54ea\u7279\u70b9<\/tr>\n\n\n\n\n\n
    \u63a7\u5236\u4f20\u8f93（Control），\u56fa\u5b9a\u4f7f\u7528 EP0<\/td>\n\u679a\u4e3e\u3001\u534f\u5546\u3001\u8bfb\u72b6\u6001<\/td>\n\u6bcf\u6761\u8bf7\u6c42\u90fd\u4fdd\u8bc1\u9001\u8fbe\u5e76\u56de\u6267<\/td>\n<\/tr>\n
    \u6279\u91cf\u4f20\u8f93（Bulk）<\/td>\n\u89c6\u9891\u6570\u636e<\/td>\n\u4e0d\u4e22\u5305，\u4f46\u5e26\u5bbd\u4e0e\u65f6\u5ef6\u4e0d\u4fdd\u8bc1<\/td>\n<\/tr>\n
    \u4e2d\u65ad\u4f20\u8f93（Interrupt）<\/td>\nUVC \u7684\u4e8b\u4ef6\u901a\u77e5<\/td>\n\u5468\u671f\u8f6e\u8be2，\u5ef6\u8fdf\u6709\u4e0a\u9650<\/td>\n<\/tr>\n
    \u7b49\u65f6\u4f20\u8f93（Isochronous）<\/td>\n\u89c6\u9891\u6570\u636e\u7684\u53e6\u4e00\u79cd\u9009\u62e9<\/td>\n\u4fdd\u5e26\u5bbd\u4e0e\u65f6\u5ef6，\u51fa\u9519\u4e0d\u91cd\u4f20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u7aef\u70b9（endpoint）\u662f\u8bbe\u5907\u5185\u90e8\u7684\u6570\u636e\u51fa\u5165\u53e3，\u6bcf\u4e2a\u7aef\u70b9\u6709\u5730\u5740\u548c\u65b9\u5411\u3002\u4e3b\u673a\u7684\u6bcf\u4e00\u6b21\u901a\u4fe1\u90fd\u53d1\u5f80\u8bbe\u5907\u4e0a\u7684\u67d0\u4e2a\u7aef\u70b9，\u800c\u4e0d\u662f\u53d1\u5f80\u8bbe\u5907\u7684\u67d0\u4e2a\u529f\u80fd\u3002\u679a\u4e3e\u4e0e\u534f\u5546\u90fd\u7ecf\u7531 0 \u53f7\u7aef\u70b9（EP0），\u89c6\u9891\u6570\u636e\u4f7f\u7528\u72ec\u7acb\u7684\u7aef\u70b9\u3002<\/p>\n

    \u8bbe\u5907\u4fa7\u53ea\u8981\u6309\u540c\u6837\u683c\u5f0f\u5e94\u7b54\u63cf\u8ff0\u7b26，\u66f4\u6362\u82af\u7247\u540e\u4e3b\u673a\u540c\u6837\u80fd\u591f\u8bc6\u522b\u3002\u4ee5\u4e0b\u4ece\u8bbe\u5907\u63d2\u5165\u5f00\u59cb，\u4f9d\u6b21\u63cf\u8ff0\u8fd9\u516b\u4e2a\u6b65\u9aa4\u3002<\/p>\n

    2. \u679a\u4e3e\u6d41\u7a0b：\u5173\u952e\u4fe1\u606f\u96c6\u4e2d\u5728\u7b2c 5 \u6b65<\/h3>\n

    \u8bbe\u5907\u63d2\u5165\u540e，\u4e3b\u673a\u4f1a\u6309\u56fa\u5b9a\u987a\u5e8f\u6267\u884c\u516b\u4e2a\u6b65\u9aa4，\u6574\u4f53\u5206\u4e3a\u4e24\u6bb5：\u524d\u6bb5\u8bc6\u522b\u8bbe\u5907\u5e76\u5206\u914d\u5730\u5740，\u540e\u6bb5\u8bfb\u56de\u5168\u90e8\u80fd\u529b\u5e76\u767b\u8bb0\u8fdb\u7cfb\u7edf\u3002<\/p>\n

    #mermaid-svg-0MnJYvSzojFUZlSP{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-0MnJYvSzojFUZlSP .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-0MnJYvSzojFUZlSP .error-icon{fill:#552222;}#mermaid-svg-0MnJYvSzojFUZlSP .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-0MnJYvSzojFUZlSP .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-0MnJYvSzojFUZlSP .marker{fill:#333333;stroke:#333333;}#mermaid-svg-0MnJYvSzojFUZlSP .marker.cross{stroke:#333333;}#mermaid-svg-0MnJYvSzojFUZlSP svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-0MnJYvSzojFUZlSP p{margin:0;}#mermaid-svg-0MnJYvSzojFUZlSP .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-0MnJYvSzojFUZlSP .cluster-label text{fill:#333;}#mermaid-svg-0MnJYvSzojFUZlSP .cluster-label span{color:#333;}#mermaid-svg-0MnJYvSzojFUZlSP .cluster-label span p{background-color:transparent;}#mermaid-svg-0MnJYvSzojFUZlSP .label text,#mermaid-svg-0MnJYvSzojFUZlSP span{fill:#333;color:#333;}#mermaid-svg-0MnJYvSzojFUZlSP .node rect,#mermaid-svg-0MnJYvSzojFUZlSP .node circle,#mermaid-svg-0MnJYvSzojFUZlSP .node ellipse,#mermaid-svg-0MnJYvSzojFUZlSP .node polygon,#mermaid-svg-0MnJYvSzojFUZlSP .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-0MnJYvSzojFUZlSP .rough-node .label text,#mermaid-svg-0MnJYvSzojFUZlSP .node .label text,#mermaid-svg-0MnJYvSzojFUZlSP .image-shape .label,#mermaid-svg-0MnJYvSzojFUZlSP .icon-shape .label{text-anchor:middle;}#mermaid-svg-0MnJYvSzojFUZlSP .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-0MnJYvSzojFUZlSP .rough-node .label,#mermaid-svg-0MnJYvSzojFUZlSP .node .label,#mermaid-svg-0MnJYvSzojFUZlSP .image-shape .label,#mermaid-svg-0MnJYvSzojFUZlSP .icon-shape .label{text-align:center;}#mermaid-svg-0MnJYvSzojFUZlSP .node.clickable{cursor:pointer;}#mermaid-svg-0MnJYvSzojFUZlSP .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-0MnJYvSzojFUZlSP .arrowheadPath{fill:#333333;}#mermaid-svg-0MnJYvSzojFUZlSP .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-0MnJYvSzojFUZlSP .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-0MnJYvSzojFUZlSP .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-0MnJYvSzojFUZlSP .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-0MnJYvSzojFUZlSP .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-0MnJYvSzojFUZlSP .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-0MnJYvSzojFUZlSP .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-0MnJYvSzojFUZlSP .cluster text{fill:#333;}#mermaid-svg-0MnJYvSzojFUZlSP .cluster span{color:#333;}#mermaid-svg-0MnJYvSzojFUZlSP div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-0MnJYvSzojFUZlSP .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-0MnJYvSzojFUZlSP rect.text{fill:none;stroke-width:0;}#mermaid-svg-0MnJYvSzojFUZlSP .icon-shape,#mermaid-svg-0MnJYvSzojFUZlSP .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-0MnJYvSzojFUZlSP .icon-shape p,#mermaid-svg-0MnJYvSzojFUZlSP .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-0MnJYvSzojFUZlSP .icon-shape .label rect,#mermaid-svg-0MnJYvSzojFUZlSP .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-0MnJYvSzojFUZlSP .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-0MnJYvSzojFUZlSP .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-0MnJYvSzojFUZlSP :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}#mermaid-svg-0MnJYvSzojFUZlSP .host>*{fill:#cce5ff!important;stroke:#0d6efd!important;color:#084298!important;}#mermaid-svg-0MnJYvSzojFUZlSP .host span{fill:#cce5ff!important;stroke:#0d6efd!important;color:#084298!important;}#mermaid-svg-0MnJYvSzojFUZlSP .host tspan{fill:#084298!important;}#mermaid-svg-0MnJYvSzojFUZlSP .req>*{fill:#d4edda!important;stroke:#28a745!important;color:#155724!important;}#mermaid-svg-0MnJYvSzojFUZlSP .req span{fill:#d4edda!important;stroke:#28a745!important;color:#155724!important;}#mermaid-svg-0MnJYvSzojFUZlSP .req tspan{fill:#155724!important;}#mermaid-svg-0MnJYvSzojFUZlSP .key>*{fill:#fff3cd!important;stroke:#ffc107!important;color:#856404!important;}#mermaid-svg-0MnJYvSzojFUZlSP .key span{fill:#fff3cd!important;stroke:#ffc107!important;color:#856404!important;}#mermaid-svg-0MnJYvSzojFUZlSP .key tspan{fill:#856404!important;}<\/p>\n

    \u540e\u534a\u6bb5：\u8bfb\u56de\u5168\u90e8\u80fd\u529b，\u767b\u8bb0\u4e3a\u8bbe\u5907<\/p>\n

    <\/span><\/p>\n

    \u524d\u534a\u6bb5：\u5148\u8bc6\u522b\u8bbe\u5907，\u518d\u5206\u914d\u5730\u5740<\/p>\n

    <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

    \u4e3b\u673a\u590d\u4f4d+ \u901f\u5ea6\u534f\u5546<\/p>\n

    <\/span><\/p>\n

    GET_DESCRIPTORDEVICE 8 \u5b57\u8282<\/p>\n

    <\/span><\/p>\n

    GET_DESCRIPTORDEVICE 18 \u5b57\u8282<\/p>\n

    <\/span><\/p>\n

    SET_ADDRESS\u5206\u914d\u5730\u5740<\/p>\n

    <\/span><\/p>\n

    GET_DESCRIPTORCONFIGURATION<\/p>\n

    <\/span><\/p>\n

    GET_DESCRIPTORSTRING<\/p>\n

    <\/span><\/p>\n

    SET_CONFIGURATION\u7aef\u70b9\u4f7f\u80fd<\/p>\n

    <\/span><\/p>\n

    \u6309\u63a5\u53e3\u7c7b\u4ee3\u7801\u52a0\u8f7d\u9a71\u52a8\u5e76\u6ce8\u518c\u8bbe\u5907<\/p>\n

    <\/span><\/p>\n

    \u524d\u4e24\u6b65\u4e3a\u4ec0\u4e48\u8981\u5206\u4e24\u6b21\u8bfb\u53d6\u8bbe\u5907\u63cf\u8ff0\u7b26？\u56e0\u4e3a\u4e3b\u673a\u5c1a\u4e0d\u77e5\u9053\u8be5\u8bbe\u5907\u7684\u7aef\u70b9\u80fd\u591f\u63a5\u6536\u591a\u5927\u7684\u6570\u636e\u5305，\u9996\u6b21\u53ea\u8bfb\u53d6 8 \u5b57\u8282\u4ee5\u53d6\u5f97 bMaxPacketSize0，\u518d\u8bfb\u53d6\u5b8c\u6574\u7684 18 \u5b57\u8282\u3002<\/p>\n

    \u8fd9\u516b\u4e2a\u6b65\u9aa4\u4e2d，\u4e3b\u673a\u4e0e\u8bbe\u5907\u5404\u81ea\u7684\u52a8\u4f5c：<\/p>\n\n\u6b65\u4e3b\u673a\u4fa7\u8bbe\u5907\u4fa7<\/tr>\n\n\n\n\n\n\n\n\n\n
    1<\/td>\n\u68c0\u6d4b\u5230\u63a5\u5165，\u590d\u4f4d\u8bbe\u5907，\u534f\u5546\u662f\u5168\u901f\u8fd8\u662f\u9ad8\u901f<\/td>\n\u63a5\u53d7\u590d\u4f4d<\/td>\n<\/tr>\n
    2<\/td>\n\u8bfb\u53d6 8 \u5b57\u8282\u8bbe\u5907\u63cf\u8ff0\u7b26<\/td>\n\u8fd4\u56de\u8bbe\u5907\u63cf\u8ff0\u7b26\u7684\u524d 8 \u5b57\u8282<\/td>\n<\/tr>\n
    3<\/td>\n\u8bfb\u53d6\u5b8c\u6574 18 \u5b57\u8282<\/td>\n\u8fd4\u56de\u5b8c\u6574\u8bbe\u5907\u63cf\u8ff0\u7b26，\u542b VID \/ PID \/ \u914d\u7f6e\u6570\u91cf<\/td>\n<\/tr>\n
    4<\/td>\n\u5206\u914d\u4e00\u4e2a\u65b0\u5730\u5740<\/td>\n\u8bb0\u5f55\u5730\u5740，\u6b64\u540e\u4ec5\u4ee5\u8be5\u5730\u5740\u5e94\u7b54<\/td>\n<\/tr>\n
    5<\/td>\n\u8bfb\u53d6\u914d\u7f6e\u63cf\u8ff0\u7b26\u96c6\u5408<\/td>\n\u8fd4\u56de\u5168\u90e8\u80fd\u529b，\u5373\u7b2c 3 \u8282\u6240\u5217\u7ed3\u6784<\/td>\n<\/tr>\n
    6<\/td>\n\u8bfb\u53d6\u5b57\u7b26\u4e32\u63cf\u8ff0\u7b26<\/td>\n\u8fd4\u56de\u5382\u5546 \/ \u4ea7\u54c1 \/ \u5e8f\u5217\u53f7\u7b49\u6587\u672c<\/td>\n<\/tr>\n
    7<\/td>\n\u9009\u5b9a\u914d\u7f6e<\/td>\n\u6309\u914d\u7f6e\u5185\u5bb9\u4f7f\u80fd\u5404\u7aef\u70b9<\/td>\n<\/tr>\n
    8<\/td>\n\u6309\u63a5\u53e3\u7c7b\u4ee3\u7801\u52a0\u8f7d\u9a71\u52a8，\u5c06\u8bbe\u5907\u6ce8\u518c\u8fdb\u7cfb\u7edf<\/td>\n\u6b64\u540e\u7b49\u5f85\u4e3b\u673a\u534f\u5546\u8f93\u51fa\u683c\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u7b2c 5 \u6b65\u662f\u5168\u90e8\u4fe1\u606f\u7684\u6765\u6e90\u3002 \u4e00\u6b21 GET_DESCRIPTOR(CONFIGURATION) \u53d6\u56de\u6574\u4e2a\u914d\u7f6e\u63cf\u8ff0\u7b26\u96c6\u5408（configuration descriptor set），\u6309\u56fa\u5b9a\u987a\u5e8f\u6392\u5217：<\/p>\n

    Configuration
    \n\u251c\u2500\u2500 IAD（Interface Association Descriptor，\u63a5\u53e3\u5173\u8054\u63cf\u8ff0\u7b26）
    \n\u251c\u2500\u2500 VC \u63a5\u53e3 + \u4e00\u4e32 CS_INTERFACE \u63cf\u8ff0\u7b26 + \u4e2d\u65ad\u7aef\u70b9
    \n\u2514\u2500\u2500 VS \u63a5\u53e3 + \u82e5\u5e72 format \u63cf\u8ff0\u7b26 + \u82e5\u5e72 frame \u63cf\u8ff0\u7b26 + \u6570\u636e\u7aef\u70b9<\/p>\n

    \u4e3b\u673a\u4fa7\u770b\u5230\u7684\u8bbe\u5907\u80fd\u529b，\u5168\u90e8\u6765\u81ea\u8fd9\u4e00\u6b21\u8bfb\u53d6\u7684\u5b57\u8282\u3002\u8fd9\u6279\u5b57\u8282\u7684\u7ed3\u6784\u662f\u56fa\u5b9a\u7684，\u4e0b\u6587\u4ee5 UVC \u6444\u50cf\u5934\u4e3a\u4f8b\u8bf4\u660e\u3002<\/p>\n

    3. UVC \u7684\u63cf\u8ff0\u7b26：\u547d\u540d\u7684\u4e09\u4e2a\u5c42\u6b21\u4e0e IAD \u5173\u8054<\/h3>\n

    UVC \u8bbe\u5907\u7684\u6807\u51c6\u7ed3\u6784\u662f\u4e00\u5bf9\u63a5\u53e3：\u4e00\u4e2a VideoControl（VC，\u89c6\u9891\u63a7\u5236\u63a5\u53e3，\u8d1f\u8d23\u63a7\u5236）\u52a0\u4e00\u4e2a VideoStreaming（VS，\u89c6\u9891\u6d41\u63a5\u53e3，\u8d1f\u8d23\u6570\u636e）\u3002\u63a5\u53e3\u7c7b\u4ee3\u7801（bInterfaceClass）\u56fa\u5b9a\u4e3a 0x0E，\u5b50\u7c7b 0x01 \u4e3a VC\u30010x02 \u4e3a VS\u3002\u4e3b\u673a\u8bfb\u5230 0x0E \u5373\u5224\u5b9a\u8fd9\u662f\u6444\u50cf\u5934，\u52a0\u8f7d\u7cfb\u7edf\u81ea\u5e26\u7684 UVC \u9a71\u52a8\u3002<\/p>\n

    \u4e00\u5bf9 VC \u4e0e VS \u6784\u6210\u4e00\u4e2a\u529f\u80fd（function），\u7531 IAD \u5c06\u4e24\u4e2a\u63a5\u53e3\u5173\u8054\u5e76\u58f0\u660e\u4e3a\u4e00\u4e2a\u6574\u4f53，\u5426\u5219\u7cfb\u7edf\u4f1a\u5c06\u5b83\u4eec\u89c6\u4e3a\u4e24\u4e2a\u4e92\u4e0d\u76f8\u5173\u7684\u8bbe\u5907\u3002\u5f53\u4e00\u53f0\u8bbe\u5907\u8981\u63d0\u4f9b\u591a\u8def\u89c6\u9891\u65f6，\u5c31\u5728\u4e00\u4e2a configuration \u4e0b\u653e\u7f6e\u591a\u7ec4 IAD + VC + VS\u3002<\/p>\n

    \u7531\u6b64\u5f62\u6210\u547d\u540d\u7684\u4e09\u4e2a\u5c42\u6b21\u3002\u5de6\u4fa7\u662f\u8bbe\u5907\u58f0\u660e\u7684\u7ed3\u6784，\u53f3\u4fa7\u662f\u4e3b\u673a\u636e\u6b64\u5efa\u7acb\u7684\u7ed3\u6784：<\/p>\n

    #mermaid-svg-QtoKgUfDLFC8uk3n{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-QtoKgUfDLFC8uk3n .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-QtoKgUfDLFC8uk3n .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-QtoKgUfDLFC8uk3n .error-icon{fill:#552222;}#mermaid-svg-QtoKgUfDLFC8uk3n .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-QtoKgUfDLFC8uk3n .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-QtoKgUfDLFC8uk3n .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-QtoKgUfDLFC8uk3n .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-QtoKgUfDLFC8uk3n .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-QtoKgUfDLFC8uk3n 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.node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-QtoKgUfDLFC8uk3n .rough-node .label text,#mermaid-svg-QtoKgUfDLFC8uk3n .node .label text,#mermaid-svg-QtoKgUfDLFC8uk3n .image-shape .label,#mermaid-svg-QtoKgUfDLFC8uk3n .icon-shape .label{text-anchor:middle;}#mermaid-svg-QtoKgUfDLFC8uk3n .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-QtoKgUfDLFC8uk3n .rough-node .label,#mermaid-svg-QtoKgUfDLFC8uk3n .node .label,#mermaid-svg-QtoKgUfDLFC8uk3n .image-shape .label,#mermaid-svg-QtoKgUfDLFC8uk3n .icon-shape .label{text-align:center;}#mermaid-svg-QtoKgUfDLFC8uk3n .node.clickable{cursor:pointer;}#mermaid-svg-QtoKgUfDLFC8uk3n .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-QtoKgUfDLFC8uk3n .arrowheadPath{fill:#333333;}#mermaid-svg-QtoKgUfDLFC8uk3n .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-QtoKgUfDLFC8uk3n .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-QtoKgUfDLFC8uk3n .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-QtoKgUfDLFC8uk3n .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-QtoKgUfDLFC8uk3n .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-QtoKgUfDLFC8uk3n .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-QtoKgUfDLFC8uk3n .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-QtoKgUfDLFC8uk3n .cluster text{fill:#333;}#mermaid-svg-QtoKgUfDLFC8uk3n .cluster span{color:#333;}#mermaid-svg-QtoKgUfDLFC8uk3n div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-QtoKgUfDLFC8uk3n .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-QtoKgUfDLFC8uk3n 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span{fill:#e2d9f3!important;stroke:#6f42c1!important;color:#3b2a6b!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .dev tspan{fill:#3b2a6b!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .fn>*{fill:#fff3cd!important;stroke:#ffc107!important;color:#856404!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .fn span{fill:#fff3cd!important;stroke:#ffc107!important;color:#856404!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .fn tspan{fill:#856404!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .itf>*{fill:#d4edda!important;stroke:#28a745!important;color:#155724!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .itf span{fill:#d4edda!important;stroke:#28a745!important;color:#155724!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .itf tspan{fill:#155724!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .host>*{fill:#cce5ff!important;stroke:#0d6efd!important;color:#084298!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .host span{fill:#cce5ff!important;stroke:#0d6efd!important;color:#084298!important;}#mermaid-svg-QtoKgUfDLFC8uk3n .host tspan{fill:#084298!important;}<\/p>\n

    \u4e3b\u673a\u4fa7\u89c6\u56fe<\/p>\n

    <\/span><\/p>\n

    \u8bbe\u5907\u58f0\u660e\u7684\u7ed3\u6784（\u63cf\u8ff0\u7b26\u4e2d\u7684\u4e09\u5c42）<\/p>\n

    <\/span><\/span><\/span><\/span><\/span><\/p>\n

    \u663e\u793a\u8bbe\u5907\u540d<\/p>\n

    <\/span><\/p>\n

    \u5404\u6ce8\u518c\u4e3a\u4e00\u4e2a\u6444\u50cf\u5934<\/p>\n

    <\/span><\/span><\/p>\n

    \u8bbe\u5907\u7ea7iProduct = 2Img+Data Camera<\/p>\n

    <\/span><\/p>\n

    \u529f\u80fd 1IAD iFunction = 6Img Camera<\/p>\n

    <\/span><\/p>\n

    \u529f\u80fd 2IAD iFunction = 7Data Camera<\/p>\n

    <\/span><\/p>\n

    \u63a5\u53e3 0 + 1VC \u4e0e VSiInterface = 6<\/p>\n

    <\/span><\/p>\n

    \u63a5\u53e3 2 + 3VC \u4e0e VSiInterface = 7<\/p>\n

    <\/span><\/p>\n

    \u8bbe\u5907\u6811Img+Data Camera<\/p>\n

    <\/span><\/p>\n

    \u6444\u50cf\u5934\u5217\u8868Img CameraData Camera<\/p>\n

    <\/span><\/p>\n

    \u56fa\u4ef6\u4e2d\u7684\u5b57\u7b26\u4e32\u8868\u5c31\u662f\u8fd9\u4e09\u5c42\u7684\u539f\u59cb\u5f62\u5f0f，\u8282\u70b9\u4e2d\u7684\u4e0b\u6807\u6570\u5b57\u5bf9\u5e94\u8fd9\u5f20\u8868\u7684\u884c\u53f7：<\/p>\n

    static<\/span> const<\/span> char<\/span> *<\/span>ustring[<\/span>]<\/span> =<\/span>
    \n{<\/span>
    \n "Language"<\/span>,<\/span> \/* 0 \u8bed\u8a00 ID *\/<\/span>
    \n "<Vendor> Co.,Ltd"<\/span>,<\/span> \/* 1 iManufacturer *\/<\/span>
    \n "Img+Data Camera"<\/span>,<\/span> \/* 2 iProduct \u2190 \u8bbe\u5907\u7ea7 *\/<\/span>
    \n serialId,<\/span> \/* 3 iSerialNumber *\/<\/span>
    \n "Configuration"<\/span>,<\/span> \/* 4 iConfiguration *\/<\/span>
    \n "Interface"<\/span>,<\/span> \/* 5 *\/<\/span>
    \n "Img Camera"<\/span>,<\/span> \/* 6 \u529f\u80fd 1 \u7684 iFunction \/ iInterface *\/<\/span>
    \n "Data Camera"<\/span> \/* 7 \u529f\u80fd 2 \u7684 iFunction \/ iInterface *\/<\/span>
    \n}<\/span>;<\/span><\/p>\n

    \u8bbe\u5907\u63cf\u8ff0\u7b26\u4e2d iProduct = 2，\u7b2c\u4e00\u7ec4 IAD\/VC\/VS \u7684 iFunction \u4e0e iInterface \u4e3a 6，\u7b2c\u4e8c\u7ec4\u4e3a 7\u3002\u8fd9\u51e0\u4e2a\u5b57\u6bb5\u672c\u8eab\u90fd\u662f\u5b57\u7b26\u4e32\u63cf\u8ff0\u7b26\u7684\u7d22\u5f15\u53f7\u3002<\/p>\n

    \u5c06\u8fd9\u4efd\u5b57\u8282\u6309\u5c42\u7ea7\u5c55\u5f00，\u5c31\u662f\u4e3b\u673a\u5728\u7b2c 5 \u6b65\u8bfb\u53d6\u5230\u7684\u7ed3\u6784：<\/p>\n

    Configuration 1
    \n\u251c\u2500 IAD #1 iFunction = 6 \u2192 "Img Camera"
    \n\u2502 \u251c\u2500 Interface 0（VC） class 0x0E \/ subclass 0x01
    \n\u2502 \u2502 \u251c\u2500 CS_INTERFACE : Header
    \n\u2502 \u2502 \u251c\u2500 CS_INTERFACE : Input Terminal （\u76f8\u673a\u7ec8\u7aef）
    \n\u2502 \u2502 \u251c\u2500 CS_INTERFACE : Processing Unit
    \n\u2502 \u2502 \u251c\u2500 CS_INTERFACE : Output Terminal
    \n\u2502 \u2502 \u2514\u2500 Endpoint 0x87 \u4e2d\u65ad\u4f20\u8f93 IN
    \n\u2502 \u2514\u2500 Interface 1（VS） class 0x0E \/ subclass 0x02 iInterface = 6
    \n\u2502 \u251c\u2500 VS Input Header
    \n\u2502 \u251c\u2500 Format 1..6 \u672a\u538b\u7f29（NV12 \/ YUY2 \/ Y16 \/ Y8 \/ RGB888 \/ RGB565）
    \n\u2502 \u2502 \u2514\u2500 \u6bcf\u79cd\u683c\u5f0f\u5305\u542b\u82e5\u5e72 Frame \u63cf\u8ff0\u7b26
    \n\u2502 \u251c\u2500 Format 7 MJPEG
    \n\u2502 \u2502 \u2514\u2500 \u82e5\u5e72 Frame \u63cf\u8ff0\u7b26
    \n\u2502 \u2514\u2500 Endpoint 0x81 \u6279\u91cf\u4f20\u8f93 IN
    \n\u2514\u2500 IAD #2 iFunction = 7 \u2192 "Data Camera"
    \n \u251c\u2500 Interface 2（VC） class 0x0E \/ subclass 0x01
    \n \u2502 \u251c\u2500 CS_INTERFACE : Header \/ Terminal \/ Unit \u2026
    \n \u2502 \u2514\u2500 Endpoint 0x88 \u4e2d\u65ad\u4f20\u8f93 IN
    \n \u2514\u2500 Interface 3（VS） class 0x0E \/ subclass 0x02 iInterface = 7
    \n \u251c\u2500 VS Input Header
    \n \u251c\u2500 Format 1 \u672a\u538b\u7f29
    \n \u2502 \u2514\u2500 6 \u7ec4 Frame：\u6bcf\u7ec4 = \u6570\u636e\u5e27 + \u540c\u5c3a\u5bf8\u7684\u4fe1\u606f\u5e27
    \n \u2514\u2500 Endpoint 0x82 \u6279\u91cf\u4f20\u8f93 IN<\/p>\n

    CS_INTERFACE \u662f\u7c7b\u7279\u5b9a\u63a5\u53e3\u63cf\u8ff0\u7b26（class-specific interface descriptor），VC \u5185\u90e8\u7684\u7ec8\u7aef\u4e0e\u5904\u7406\u5355\u5143\u90fd\u7531\u5b83\u5b9a\u4e49\u3002<\/p>\n

    \u63a5\u53e3\u7f16\u53f7\u5728\u56fa\u4ef6\u4e2d\u5199\u4f5c USB_DYNAMIC，\u7531\u534f\u8bae\u6808\u5728\u679a\u4e3e\u65f6\u5206\u914d，\u56e0\u6b64\u4e0a\u6587\u7684 0\/1\/2\/3 \u662f\u5178\u578b\u7ed3\u679c\u800c\u975e\u786c\u7f16\u7801\u503c\u3002<\/p>\n

    \u4e3b\u673a\u636e\u6b64\u5efa\u7acb\u7684\u8bbe\u5907\u6811，\u540c\u4e00\u53f0\u8bbe\u5907\u4f1a\u540c\u65f6\u51fa\u73b0\u5728\u4e24\u4e2a\u4f4d\u7f6e：<\/p>\n

    \u8bbe\u5907\u7ba1\u7406\u5668
    \n\u251c\u2500 \u901a\u7528\u4e32\u884c\u603b\u7ebf\u63a7\u5236\u5668
    \n\u2502 \u2514\u2500 USB \u590d\u5408\u8bbe\u5907
    \n\u2502 \u2514\u2500 <Vendor> Co.,Ltd Img+Data Camera \u2190 iProduct（\u8bbe\u5907\u7ea7，\u53ea\u6709\u4e00\u4e2a）
    \n\u2514\u2500 \u6444\u50cf\u5934（Imaging Devices）
    \n \u251c\u2500 Img Camera \u2190 \u529f\u80fd 1 \u7684 iFunction
    \n \u2514\u2500 Data Camera \u2190 \u529f\u80fd 2 \u7684 iFunction<\/p>\n

    \u4e24\u4e2a\u4f4d\u7f6e\u63cf\u8ff0\u7684\u662f\u540c\u4e00\u4efd\u6570\u636e，\u533a\u522b\u53ea\u5728\u4e8e\u4e3b\u673a\u628a\u5b83\u653e\u5728\u8bbe\u5907\u6811\u7684\u54ea\u4e00\u5c42\u3002<\/p>\n

    \u4e24\u4e2a\u529f\u80fd\u627f\u8f7d\u7684\u6570\u636e\u5f62\u6001\u4e0d\u540c，\u8fd9\u662f\u5206\u6210\u4e24\u8def\u7684\u539f\u56e0：<\/p>\n\n\u529f\u80fd 1（Img Camera）\u529f\u80fd 2（Data Camera）<\/tr>\n\n\n\n\n\n
    \u5185\u5bb9<\/td>\n\u56fe\u50cf\u5e27<\/td>\n\u7ed3\u6784\u5316\u6570\u636e\u5e27<\/td>\n<\/tr>\n
    \u683c\u5f0f\u6570<\/td>\n6 \u79cd\u672a\u538b\u7f29 + 1 \u79cd\u538b\u7f29（MJPEG）<\/td>\n1 \u79cd\u672a\u538b\u7f29<\/td>\n<\/tr>\n
    \u5e27\u7ec4\u7ec7<\/td>\n\u6bcf\u79cd\u683c\u5f0f\u82e5\u5e72\u7ec4\u72ec\u7acb\u7684\u56fe\u50cf\u5e27\u53c2\u6570<\/td>\n\u6210\u5bf9：\u6570\u636e\u5e27 + \u540c\u5c3a\u5bf8\u7684\u4fe1\u606f\u5e27<\/td>\n<\/tr>\n
    \u5c3a\u5bf8<\/td>\n\u56fe\u50cf\u5206\u8fa8\u7387<\/td>\n\u5c0f\u5c3a\u5bf8\u77e9\u9635（\u5982 16\u00d712 \u81f3 512\u00d7384）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u7b2c\u4e8c\u8def\u6bcf\u5e27\u914d\u4e00\u4efd\u4fe1\u606f\u5e27，\u5bf9\u5e94\u300c\u4f20\u611f\u5668\u77e9\u9635 + \u5143\u4fe1\u606f（\u5e27\u5934 \/ \u91cf\u7a0b \/ \u65f6\u95f4\u6233）\u300d\u8fd9\u7c7b\u6570\u636e\u7684\u5e38\u89c1\u7ec4\u7ec7\u65b9\u5f0f\u3002<\/p>\n

    4. \u679a\u4e3e\u5b8c\u6210\u8bc6\u522b，\u80fd\u529b\u7531 Probe\/Commit \u534f\u5546\u786e\u5b9a<\/h3>\n

    \u63cf\u8ff0\u7b26\u5df2\u5411\u4e3b\u673a\u63d0\u4f9b\u683c\u5f0f\u6e05\u5355，\u4f46\u4e3b\u673a\u5c1a\u672a\u9009\u5b9a\u4f7f\u7528\u5176\u4e2d\u54ea\u4e00\u9879，\u5e27\u7387\u4e5f\u672a\u786e\u5b9a\u3002\u8fd9\u4e00\u6b65\u8981\u7528 UVC \u7684\u7c7b\u7279\u5b9a\u63a7\u5236\u8bf7\u6c42（class-specific request）\u518d\u534f\u5546\u4e00\u8f6e，\u5168\u7a0b\u540c\u6837\u7ecf\u7531 EP0\u3002\u8fd9\u7c7b\u8bf7\u6c42\u7531 UVC \u5b9a\u4e49，\u53ea\u662f\u501f\u7528\u4e86 USB \u7684\u63a7\u5236\u4f20\u8f93：<\/p>\n

    \u8bbe\u5907\u4fa7\u786c\u4ef6\u8f93\u51fa\u901a\u8def\u8bbe\u5907\u4fa7 UVC Class \u5904\u7406USB EP0\u4e3b\u673a UVC \u9a71\u52a8\u8bbe\u5907\u4fa7\u786c\u4ef6\u8f93\u51fa\u901a\u8def\u8bbe\u5907\u4fa7 UVC Class \u5904\u7406USB EP0\u4e3b\u673a UVC \u9a71\u52a8#mermaid-svg-64hj7ClcDwCS6PsP{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-64hj7ClcDwCS6PsP .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-64hj7ClcDwCS6PsP .error-icon{fill:#552222;}#mermaid-svg-64hj7ClcDwCS6PsP .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-64hj7ClcDwCS6PsP .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-64hj7ClcDwCS6PsP .marker{fill:#333333;stroke:#333333;}#mermaid-svg-64hj7ClcDwCS6PsP .marker.cross{stroke:#333333;}#mermaid-svg-64hj7ClcDwCS6PsP svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-64hj7ClcDwCS6PsP p{margin:0;}#mermaid-svg-64hj7ClcDwCS6PsP .actor{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-64hj7ClcDwCS6PsP text.actor>tspan{fill:black;stroke:none;}#mermaid-svg-64hj7ClcDwCS6PsP .actor-line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-64hj7ClcDwCS6PsP .innerArc{stroke-width:1.5;stroke-dasharray:none;}#mermaid-svg-64hj7ClcDwCS6PsP .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333;}#mermaid-svg-64hj7ClcDwCS6PsP .messageLine1{stroke-width:1.5;stroke-dasharray:2,2;stroke:#333;}#mermaid-svg-64hj7ClcDwCS6PsP #arrowhead path{fill:#333;stroke:#333;}#mermaid-svg-64hj7ClcDwCS6PsP .sequenceNumber{fill:white;}#mermaid-svg-64hj7ClcDwCS6PsP #sequencenumber{fill:#333;}#mermaid-svg-64hj7ClcDwCS6PsP #crosshead path{fill:#333;stroke:#333;}#mermaid-svg-64hj7ClcDwCS6PsP .messageText{fill:#333;stroke:none;}#mermaid-svg-64hj7ClcDwCS6PsP .labelBox{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-64hj7ClcDwCS6PsP .labelText,#mermaid-svg-64hj7ClcDwCS6PsP .labelText>tspan{fill:black;stroke:none;}#mermaid-svg-64hj7ClcDwCS6PsP .loopText,#mermaid-svg-64hj7ClcDwCS6PsP .loopText>tspan{fill:black;stroke:none;}#mermaid-svg-64hj7ClcDwCS6PsP .loopLine{stroke-width:2px;stroke-dasharray:2,2;stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-64hj7ClcDwCS6PsP .note{stroke:#aaaa33;fill:#fff5ad;}#mermaid-svg-64hj7ClcDwCS6PsP .noteText,#mermaid-svg-64hj7ClcDwCS6PsP .noteText>tspan{fill:black;stroke:none;}#mermaid-svg-64hj7ClcDwCS6PsP .activation0{fill:#f4f4f4;stroke:#666;}#mermaid-svg-64hj7ClcDwCS6PsP .activation1{fill:#f4f4f4;stroke:#666;}#mermaid-svg-64hj7ClcDwCS6PsP .activation2{fill:#f4f4f4;stroke:#666;}#mermaid-svg-64hj7ClcDwCS6PsP .actorPopupMenu{position:absolute;}#mermaid-svg-64hj7ClcDwCS6PsP .actorPopupMenuPanel{position:absolute;fill:#ECECFF;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-64hj7ClcDwCS6PsP .actor-man line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-64hj7ClcDwCS6PsP .actor-man circle,#mermaid-svg-64hj7ClcDwCS6PsP line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;stroke-width:2px;}#mermaid-svg-64hj7ClcDwCS6PsP :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}GET_CUR(VS_PROBE) \u8bfb\u53d6\u5019\u9009\u683c\u5f0f\u4e0e\u5e27\u53c2\u65701\u8fd4\u56de\u8be5\u683c\u5f0f\u652f\u6301\u7684\u5206\u8fa8\u7387 \/ \u5e27\u7387\u533a\u95f42SET_CUR(VS_PROBE) \u63a2\u6d4b3\u6821\u9a8c payload \u80fd\u5426\u627f\u8f7d4SET_CUR(VS_COMMIT) \u786e\u5b9a5commit \u56de\u8c036\u4ee5 bFormatIndex \/ bFrameIndex \/ dwFrameInterval \u521d\u59cb\u5316\u8f93\u51fa\u901a\u8def7\u6570\u636e\u7aef\u70b9\u5f00\u59cb\u4f20\u8f93\u6570\u636e8<\/p>\n

    VS_PROBE \u7528\u4e8e\u63a2\u6d4b，VS_COMMIT \u7528\u4e8e\u786e\u5b9a\u3002\u5173\u952e\u5728\u4e8e\u6700\u540e\u4e09\u6b65：Commit \u4e4b\u524d\u786c\u4ef6\u901a\u8def\u5c1a\u672a\u542f\u52a8\u3002\u56de\u8c03\u53d6\u5f97 bFormatIndex\u3001bFrameIndex\u3001dwFrameInterval \u4e09\u4e2a\u4e0b\u6807，\u7ec4\u6210\u4e00\u4efd\u5e27\u53c2\u6570，\u624d\u53bb\u521d\u59cb\u5316\u5c01\u88c5\u786c\u4ef6\u4e0e\u8f93\u51fa\u63a5\u53e3\u3002\u56e0\u6b64\u76f8\u673a\u5df2\u63d2\u5165\u4f46\u672a\u6253\u5f00\u9884\u89c8\u65f6，\u8bbe\u5907\u4e0d\u4f1a\u5411\u6570\u636e\u7aef\u70b9\u53d1\u9001\u50cf\u7d20\u3002<\/p>\n

    \u534f\u5546\u5b8c\u6210\u540e\u5373\u4e0e EP0 \u65e0\u5173：\u50cf\u7d20\u7ecf\u7531\u72ec\u7acb\u7684 Bulk IN \u6216 Isochronous IN \u7aef\u70b9\u4f20\u8f93，\u7531\u4e3b\u673a\u6309\u671f\u8bfb\u53d6\u3002\u6b64\u540e\u4e3b\u673a\u4fa7\u8d1f\u8d23\u63a5\u6536，\u8bbe\u5907\u4fa7\u6309\u534f\u5546\u7ed3\u679c\u8f93\u51fa\u3002<\/p>\n

    5. \u4e09\u4e2a\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u5730\u65b9<\/h3>\n

    \u4ee5\u4e0b\u4e09\u5904\u540d\u79f0\u76f8\u8fd1，\u5b9e\u9645\u8c03\u8bd5\u65f6\u6700\u5bb9\u6613\u8bef\u5224：<\/p>\n

  • \n

    \u7aef\u70b9\u53f7 \u2260 \u5185\u90e8\u901a\u9053\u53f7\u30020x81\u30010x82 \u662f USB \u7aef\u70b9\u5730\u5740，\u8bbe\u5907\u56fa\u4ef6\u5185\u90e8\u53ef\u80fd\u53e6\u6709\u300c\u901a\u9053 1\/2\/3\u300d\u7f16\u53f7，\u4e24\u5957\u7f16\u53f7\u4e4b\u95f4\u6ca1\u6709\u6570\u503c\u5bf9\u5e94\u5173\u7cfb，\u4ec5\u8868\u793a\u56fa\u4ef6\u5728\u914d\u7f6e\u4e2d\u628a\u67d0\u8def\u5185\u90e8\u901a\u9053\u6620\u5c04\u5230\u4e86\u67d0\u4e2a\u7aef\u70b9\u3002<\/p>\n<\/li>\n

  • \n

    \u8bbe\u5907\u540d\u4e0d\u662f\u6444\u50cf\u5934\u540d\u79f0\u3002\u8bbe\u5907\u6811\u8bfb\u53d6 iProduct，\u6444\u50cf\u5934\u5217\u8868\u8bfb\u53d6\u5404 function \u7684 iFunction，\u4e24\u8005\u672c\u5c31\u662f\u4e0d\u540c\u7684\u5b57\u6bb5，\u56e0\u6b64\u540c\u4e00\u53f0\u8bbe\u5907\u4f1a\u51fa\u73b0\u5728\u4e24\u4e2a\u4f4d\u7f6e\u3002<\/p>\n<\/li>\n

  • \n

    IAD \u4e0d\u53ef\u7701\u7565\u3002\u7f3a\u5c11 IAD \u65f6，VC \u4e0e VS \u4f1a\u88ab\u89c6\u4e3a\u4e24\u4e2a\u72ec\u7acb\u63a5\u53e3，Windows \u4e0b\u5e38\u8868\u73b0\u4e3a\u300c\u8bc6\u522b\u5230 USB Video \u8bbe\u5907\u4f46\u65e0\u6cd5\u6253\u5f00\u300d，\u56e0\u4e3a UVC \u9a71\u52a8\u9700\u8981\u4f9d\u9760\u914d\u5bf9\u5173\u7cfb\u624d\u80fd\u786e\u5b9a\u63a7\u5236\u63a5\u53e3\u4e0e\u6570\u636e\u63a5\u53e3\u5c5e\u4e8e\u540c\u4e00\u8def\u89c6\u9891\u3002<\/p>\n<\/li>\n

    \u4e00\u53e5\u8bdd：USB \u7684\u5373\u63d2\u5373\u7528\u5efa\u7acb\u5728\u8bbe\u5907\u6309\u89c4\u8303\u63cf\u8ff0\u81ea\u8eab\u7684\u57fa\u7840\u4e0a\u3002\u4e3b\u673a\u53d1\u8d77\u8bf7\u6c42\u3001\u8bbe\u5907\u5e94\u7b54，\u8fd9\u4e00\u4ea4\u4e92\u8d2f\u7a7f\u4e09\u4e2a\u9636\u6bb5：\u679a\u4e3e\u65f6\u4ea4\u6362\u63cf\u8ff0\u7b26\u786e\u5b9a\u8eab\u4efd，\u534f\u5546\u65f6\u7528 Probe\/Commit \u786e\u5b9a\u683c\u5f0f，\u5f00\u59cb\u4f20\u8f93\u540e\u8bbe\u5907\u5411\u7aef\u70b9\u8f93\u51fa\u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u679a\u4e3e\u3001\u534f\u5546\u3001\u4f20\u8f93：\u4ee5\u76f8\u673a\u4e3a\u4f8b\u770b\u8bc6\u522b\u4e0e\u683c\u5f0f\u534f\u5546\u6982\u8ff0：\u4e3b\u673a\u80fd\u591f\u679a\u4e3e\u4e00\u9897\u4ece\u672a\u89c1\u8fc7\u7684\u82af\u7247，\u5e76\u975e\u56e0\u4e3a\u4e3b\u673a\u9884\u5148\u8bc6\u522b\u4e86\u8be5\u82af\u7247，\u800c\u662f\u56e0\u4e3a\u8bbe\u5907\u6309 USB \u89c4\u8303\u7528\u63cf\u8ff0\u7b26\u63cf\u8ff0\u81ea\u8eab\u3002\u63cf\u8ff0\u7b26\u8bf4\u660e\u8bbe\u5907\u7684\u8eab\u4efd\u4e0e\u63a5\u53e3\u6570\u91cf，Probe\/Commit \u534f\u5546\u786e\u5b9a\u8f93\u51fa\u683c\u5f0f\u30021. \u57fa\u7840：\u534f\u8bae\u5206\u5c42\u3001\u53cc\u65b9\u89d2\u8272\u4e0e\u901a\u4fe1\u65b9\u5f0f
    \n\u8981\u7406\u89e3\u8fd9\u5957\u8fc7\u7a0b，\u5148\u5206\u6e05\u4e24\u5c42\u89c4\u8303，\u5b83\u4eec\u53e0\u52a0\u5728\u4e00\u8d77，\u804c\u8d23\u4e0d\u540c：\u5c42\u89c4\u8303<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9841,12237,4009],"topic":[],"class_list":["post-107618","post","type-post","status-publish","format-standard","hentry","category-server","tag-9841","tag-12237","tag-usb"],"yoast_head":"\nUSB\u679a\u4e3e\u3001\u534f\u5546\u3001\u4f20\u8f93\uff1a\u4ee5USB\u76f8\u673a\u4e3a\u4f8b\u770b\u8bc6\u522b\u4e0e\u683c\u5f0f\u534f\u5546 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/107618.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USB\u679a\u4e3e\u3001\u534f\u5546\u3001\u4f20\u8f93\uff1a\u4ee5USB\u76f8\u673a\u4e3a\u4f8b\u770b\u8bc6\u522b\u4e0e\u683c\u5f0f\u534f\u5546 - 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