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group__libusb__desc.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.13"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>libusb-1.0: USB descriptors</title>
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<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">libusb-1.0
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.13 -->
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<script type="text/javascript">
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
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<!-- window showing the filter options -->
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<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
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</div>
<div class="header">
<div class="summary">
<a href="#nested-classes">Classes</a> |
<a href="#enum-members">Enumerations</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">USB descriptors</div> </div>
</div><!--header-->
<div class="contents">
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__device__descriptor.html">libusb_device_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__endpoint__descriptor.html">libusb_endpoint_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__interface__descriptor.html">libusb_interface_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__interface.html">libusb_interface</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__ss__endpoint__companion__descriptor.html">libusb_ss_endpoint_companion_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__bos__dev__capability__descriptor.html">libusb_bos_dev_capability_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__bos__descriptor.html">libusb_bos_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__usb__2__0__extension__descriptor.html">libusb_usb_2_0_extension_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__ss__usb__device__capability__descriptor.html">libusb_ss_usb_device_capability_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structlibusb__container__id__descriptor.html">libusb_container_id_descriptor</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:gac529888effbefef8af4f9d17ebc903a1"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#gac529888effbefef8af4f9d17ebc903a1">libusb_class_code</a> { <br />
  <a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1ac6d01c08f92219d625162271d9547550">LIBUSB_CLASS_PER_INTERFACE</a> = 0x00,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a1f87be5c5c32c30e1e6831abdb61461a">LIBUSB_CLASS_AUDIO</a> = 0x01,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a7db61f0ea65d1919962ac0370513183b">LIBUSB_CLASS_COMM</a> = 0x02,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1ad126069ffbc9cb3cda97fe0fe8c190f3">LIBUSB_CLASS_HID</a> = 0x03,
<br />
  <a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a7abdd4f2d21f046622717f70ad0b6ea9">LIBUSB_CLASS_PHYSICAL</a> = 0x05,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1af393b0c8f1da0b9c558f6e5c113b59b2">LIBUSB_CLASS_IMAGE</a> = 0x06,
<b>LIBUSB_CLASS_PTP</b> = 0x06,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1ab1592f5d41d4ee3ccfe0adef8cbf04ee">LIBUSB_CLASS_PRINTER</a> = 0x07,
<br />
  <a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1ac84d2301375aef28bf5c3f4bda35f9d1">LIBUSB_CLASS_MASS_STORAGE</a> = 0x08,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a28ba55c39b90ba3f281542e4ffdb626d">LIBUSB_CLASS_HUB</a> = 0x09,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1aa18621124b0db0f8972556647ad16827">LIBUSB_CLASS_DATA</a> = 0x0a,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1af4ec75b9ab816c46da747c80bbf9cca0">LIBUSB_CLASS_SMART_CARD</a> = 0x0b,
<br />
  <a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a5d306be7a6fbfb331ce25c8c804eada8">LIBUSB_CLASS_CONTENT_SECURITY</a> = 0x0d,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a7deae7d18c3d99dda5bb3bd8b6ec01da">LIBUSB_CLASS_VIDEO</a> = 0x0e,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1ab97e8441e102707252263abcdc29b4c0">LIBUSB_CLASS_PERSONAL_HEALTHCARE</a> = 0x0f,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a5f1089ee11b766a10a27c0c0600bebfa">LIBUSB_CLASS_DIAGNOSTIC_DEVICE</a> = 0xdc,
<br />
  <a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1aaeea39cf3f500f56381cd6e05132d934">LIBUSB_CLASS_WIRELESS</a> = 0xe0,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1a3a95beae54453469c4862efc1606dcc9">LIBUSB_CLASS_APPLICATION</a> = 0xfe,
<a class="el" href="group__libusb__desc.html#ggac529888effbefef8af4f9d17ebc903a1ad68e1d33a332360428f838c6ddd847f6">LIBUSB_CLASS_VENDOR_SPEC</a> = 0xff
<br />
}</td></tr>
<tr class="separator:gac529888effbefef8af4f9d17ebc903a1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga0a2e8a25dfdebf29fdd4764dcdbc1a9c"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga0a2e8a25dfdebf29fdd4764dcdbc1a9c">libusb_descriptor_type</a> { <br />
  <a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca486e222e9f3053502ce4954a5bd89ba2">LIBUSB_DT_DEVICE</a> = 0x01,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca2a3f906d7755932ab67f39701da0b508">LIBUSB_DT_CONFIG</a> = 0x02,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca2b8ca4332dce1357767ecab20ed2f4c2">LIBUSB_DT_STRING</a> = 0x03,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca797f18e35ee27434562aed0c20c46b78">LIBUSB_DT_INTERFACE</a> = 0x04,
<br />
  <a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca97df43465eec9e6db81346f521777815">LIBUSB_DT_ENDPOINT</a> = 0x05,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9caab1245826594605de870d70bffae7f2c">LIBUSB_DT_BOS</a> = 0x0f,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca56875fd1a3df25bdea7680fa9047743c">LIBUSB_DT_DEVICE_CAPABILITY</a> = 0x10,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca3085fb63563770bfa1ede7b27cbf4f5e">LIBUSB_DT_HID</a> = 0x21,
<br />
  <a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca3972f13fb6b6abdb0978dc43d9d24e6f">LIBUSB_DT_REPORT</a> = 0x22,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca77c22f3dc80f2a505c22c68cc54c70d3">LIBUSB_DT_PHYSICAL</a> = 0x23,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca2186edbc7dc05b063ac41103a5ccfa9a">LIBUSB_DT_HUB</a> = 0x29,
<a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca6892da187e642c8a9b7900e86bf38ba8">LIBUSB_DT_SUPERSPEED_HUB</a> = 0x2a,
<br />
  <a class="el" href="group__libusb__desc.html#gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca9bdd0a16eb0647330c2b7085520db533">LIBUSB_DT_SS_ENDPOINT_COMPANION</a> = 0x30
<br />
}</td></tr>
<tr class="separator:ga0a2e8a25dfdebf29fdd4764dcdbc1a9c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga86c880af878493aa8f805c2aba654b8b"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga86c880af878493aa8f805c2aba654b8b">libusb_endpoint_direction</a> { <a class="el" href="group__libusb__desc.html#gga86c880af878493aa8f805c2aba654b8ba940484c16d44bdfc6eccc2de7a9ffcb2">LIBUSB_ENDPOINT_OUT</a> = 0x00,
<a class="el" href="group__libusb__desc.html#gga86c880af878493aa8f805c2aba654b8ba3829979c66e5344367f32f4a31d43613">LIBUSB_ENDPOINT_IN</a> = 0x80
}</td></tr>
<tr class="separator:ga86c880af878493aa8f805c2aba654b8b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga8c93c0ec3fccf1c44e8ec7639619a53e"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga8c93c0ec3fccf1c44e8ec7639619a53e">libusb_endpoint_transfer_type</a> { <a class="el" href="group__libusb__desc.html#gga8c93c0ec3fccf1c44e8ec7639619a53ead260fb0157bc6f9aac8eaa2d55c38d4c">LIBUSB_ENDPOINT_TRANSFER_TYPE_CONTROL</a> = 0x0,
<a class="el" href="group__libusb__desc.html#gga8c93c0ec3fccf1c44e8ec7639619a53eabf397203fed6c0d5600501451aa78d54">LIBUSB_ENDPOINT_TRANSFER_TYPE_ISOCHRONOUS</a> = 0x1,
<a class="el" href="group__libusb__desc.html#gga8c93c0ec3fccf1c44e8ec7639619a53eac15482644d154a26edbc12ee3aafb9f6">LIBUSB_ENDPOINT_TRANSFER_TYPE_BULK</a> = 0x2,
<a class="el" href="group__libusb__desc.html#gga8c93c0ec3fccf1c44e8ec7639619a53eaaeecf2878d3cb364a163126b191a0a19">LIBUSB_ENDPOINT_TRANSFER_TYPE_INTERRUPT</a> = 0x3
}</td></tr>
<tr class="separator:ga8c93c0ec3fccf1c44e8ec7639619a53e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa2231202dfe12eddca49b1193d44a441"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#gaa2231202dfe12eddca49b1193d44a441">libusb_iso_sync_type</a> { <a class="el" href="group__libusb__desc.html#ggaa2231202dfe12eddca49b1193d44a441a4a74eefd565a40b4ed911baaaaea1cee">LIBUSB_ISO_SYNC_TYPE_NONE</a> = 0x0,
<a class="el" href="group__libusb__desc.html#ggaa2231202dfe12eddca49b1193d44a441ab97a868cd66bfcac50f9ccf8ff0b3a67">LIBUSB_ISO_SYNC_TYPE_ASYNC</a> = 0x1,
<a class="el" href="group__libusb__desc.html#ggaa2231202dfe12eddca49b1193d44a441a813f487563e5b61a8399e7512f0c303b">LIBUSB_ISO_SYNC_TYPE_ADAPTIVE</a> = 0x2,
<a class="el" href="group__libusb__desc.html#ggaa2231202dfe12eddca49b1193d44a441a39244a977707c95c7f3ba0e978faba84">LIBUSB_ISO_SYNC_TYPE_SYNC</a> = 0x3
}</td></tr>
<tr class="separator:gaa2231202dfe12eddca49b1193d44a441"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab72474551b0eb965401e6febb856007c"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#gab72474551b0eb965401e6febb856007c">libusb_iso_usage_type</a> { <a class="el" href="group__libusb__desc.html#ggab72474551b0eb965401e6febb856007ca13edfd0d36d959bcf32d5cca341c7f38">LIBUSB_ISO_USAGE_TYPE_DATA</a> = 0x0,
<a class="el" href="group__libusb__desc.html#ggab72474551b0eb965401e6febb856007ca2390aa76c4444e0b590fb65f305e4485">LIBUSB_ISO_USAGE_TYPE_FEEDBACK</a> = 0x1,
<a class="el" href="group__libusb__desc.html#ggab72474551b0eb965401e6febb856007ca8e48a0bad38cfaf0e87dfdc225f91e32">LIBUSB_ISO_USAGE_TYPE_IMPLICIT</a> = 0x2
}</td></tr>
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<tr class="memitem:ga1454797ecc0de4d084c1619c420014f6"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga1454797ecc0de4d084c1619c420014f6">libusb_supported_speed</a> { <a class="el" href="group__libusb__desc.html#gga1454797ecc0de4d084c1619c420014f6aa7707c4cef77f4be8aceef859fad2087">LIBUSB_LOW_SPEED_OPERATION</a> = (1 << 0),
<a class="el" href="group__libusb__desc.html#gga1454797ecc0de4d084c1619c420014f6adbebc659daf53947527259172f81b41a">LIBUSB_FULL_SPEED_OPERATION</a> = (1 << 1),
<a class="el" href="group__libusb__desc.html#gga1454797ecc0de4d084c1619c420014f6a2db8b2bb845a23ad1083521ff5b6e9a8">LIBUSB_HIGH_SPEED_OPERATION</a> = (1 << 2),
<a class="el" href="group__libusb__desc.html#gga1454797ecc0de4d084c1619c420014f6accd7b9361912b76e40348dc30e6dc7f4">LIBUSB_SUPER_SPEED_OPERATION</a> = (1 << 3)
}</td></tr>
<tr class="separator:ga1454797ecc0de4d084c1619c420014f6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gacb8cfa928bffdd0066a3dd2e6aba0558"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#gacb8cfa928bffdd0066a3dd2e6aba0558">libusb_usb_2_0_extension_attributes</a> { <a class="el" href="group__libusb__desc.html#ggacb8cfa928bffdd0066a3dd2e6aba0558a02f60b018f4bc01e8813da813779b792">LIBUSB_BM_LPM_SUPPORT</a> = (1 << 1)
}</td></tr>
<tr class="separator:gacb8cfa928bffdd0066a3dd2e6aba0558"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaad5a5399176a35a64164dafad7fe4fcd"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#gaad5a5399176a35a64164dafad7fe4fcd">libusb_ss_usb_device_capability_attributes</a> { <a class="el" href="group__libusb__desc.html#ggaad5a5399176a35a64164dafad7fe4fcda5987a17b394338df71c1e04c5c75bc21">LIBUSB_BM_LTM_SUPPORT</a> = (1 << 1)
}</td></tr>
<tr class="separator:gaad5a5399176a35a64164dafad7fe4fcd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6ccabbf3b3728ae69608ba83bba4e64c"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga6ccabbf3b3728ae69608ba83bba4e64c">libusb_bos_type</a> { <a class="el" href="group__libusb__desc.html#gga6ccabbf3b3728ae69608ba83bba4e64cac05dcfcd0a5c0dbaef90b1d09e4b5505">LIBUSB_BT_WIRELESS_USB_DEVICE_CAPABILITY</a> = 0x01,
<a class="el" href="group__libusb__desc.html#gga6ccabbf3b3728ae69608ba83bba4e64ca243b090db95a0fdf7104fbf581724b86">LIBUSB_BT_USB_2_0_EXTENSION</a> = 0x02,
<a class="el" href="group__libusb__desc.html#gga6ccabbf3b3728ae69608ba83bba4e64ca2f1ab0d2d1e14d4942c079749b1b6c85">LIBUSB_BT_SS_USB_DEVICE_CAPABILITY</a> = 0x03,
<a class="el" href="group__libusb__desc.html#gga6ccabbf3b3728ae69608ba83bba4e64cac3c00e8861b4b596ea1f53c505809e5e">LIBUSB_BT_CONTAINER_ID</a> = 0x04
}</td></tr>
<tr class="separator:ga6ccabbf3b3728ae69608ba83bba4e64c"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga00c49c14505cf3fdaeb902176591105f"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga00c49c14505cf3fdaeb902176591105f">libusb_get_device_descriptor</a> (<a class="el" href="structlibusb__device.html">libusb_device</a> *dev, struct <a class="el" href="structlibusb__device__descriptor.html">libusb_device_descriptor</a> *desc)</td></tr>
<tr class="separator:ga00c49c14505cf3fdaeb902176591105f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga75d1bb1f08171defd7bde6ec5746c0e5"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga75d1bb1f08171defd7bde6ec5746c0e5">libusb_get_active_config_descriptor</a> (<a class="el" href="structlibusb__device.html">libusb_device</a> *dev, struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> **config)</td></tr>
<tr class="separator:ga75d1bb1f08171defd7bde6ec5746c0e5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga46e2cc3640dac4055b2f4787bacdc1bb"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga46e2cc3640dac4055b2f4787bacdc1bb">libusb_get_config_descriptor</a> (<a class="el" href="structlibusb__device.html">libusb_device</a> *dev, uint8_t config_index, struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> **config)</td></tr>
<tr class="separator:ga46e2cc3640dac4055b2f4787bacdc1bb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7f2584522c79256f188ec449bb0aabad"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga7f2584522c79256f188ec449bb0aabad">libusb_get_config_descriptor_by_value</a> (<a class="el" href="structlibusb__device.html">libusb_device</a> *dev, uint8_t bConfigurationValue, struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> **config)</td></tr>
<tr class="separator:ga7f2584522c79256f188ec449bb0aabad"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga5216fee4a9565a04cfe7f5cd11903402"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga5216fee4a9565a04cfe7f5cd11903402">libusb_free_config_descriptor</a> (struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> *config)</td></tr>
<tr class="separator:ga5216fee4a9565a04cfe7f5cd11903402"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga02cf813c89e3b85a8b0af8c0efab8345"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga02cf813c89e3b85a8b0af8c0efab8345">libusb_get_ss_endpoint_companion_descriptor</a> (<a class="el" href="structlibusb__context.html">libusb_context</a> *ctx, const struct <a class="el" href="structlibusb__endpoint__descriptor.html">libusb_endpoint_descriptor</a> *<a class="el" href="structendpoint.html">endpoint</a>, struct <a class="el" href="structlibusb__ss__endpoint__companion__descriptor.html">libusb_ss_endpoint_companion_descriptor</a> **ep_comp)</td></tr>
<tr class="separator:ga02cf813c89e3b85a8b0af8c0efab8345"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga0bb786eb3137d3959d4bcb652f7562ff"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga0bb786eb3137d3959d4bcb652f7562ff">libusb_free_ss_endpoint_companion_descriptor</a> (struct <a class="el" href="structlibusb__ss__endpoint__companion__descriptor.html">libusb_ss_endpoint_companion_descriptor</a> *ep_comp)</td></tr>
<tr class="separator:ga0bb786eb3137d3959d4bcb652f7562ff"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga26fc77ae66420d9bb4fac1ccc987bc78"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga26fc77ae66420d9bb4fac1ccc987bc78">libusb_get_bos_descriptor</a> (<a class="el" href="structlibusb__device__handle.html">libusb_device_handle</a> *dev_handle, struct <a class="el" href="structlibusb__bos__descriptor.html">libusb_bos_descriptor</a> **bos)</td></tr>
<tr class="separator:ga26fc77ae66420d9bb4fac1ccc987bc78"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gafb5dd71009651559150cf69cd311b1fa"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#gafb5dd71009651559150cf69cd311b1fa">libusb_free_bos_descriptor</a> (struct <a class="el" href="structlibusb__bos__descriptor.html">libusb_bos_descriptor</a> *bos)</td></tr>
<tr class="separator:gafb5dd71009651559150cf69cd311b1fa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga8954bc032f9b9c099e1a25ec20f6ccfc"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga8954bc032f9b9c099e1a25ec20f6ccfc">libusb_get_usb_2_0_extension_descriptor</a> (<a class="el" href="structlibusb__context.html">libusb_context</a> *ctx, struct <a class="el" href="structlibusb__bos__dev__capability__descriptor.html">libusb_bos_dev_capability_descriptor</a> *dev_cap, struct <a class="el" href="structlibusb__usb__2__0__extension__descriptor.html">libusb_usb_2_0_extension_descriptor</a> **usb_2_0_extension)</td></tr>
<tr class="separator:ga8954bc032f9b9c099e1a25ec20f6ccfc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga62be3cf1138c5ebd27088543c3b6c94c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga62be3cf1138c5ebd27088543c3b6c94c">libusb_free_usb_2_0_extension_descriptor</a> (struct <a class="el" href="structlibusb__usb__2__0__extension__descriptor.html">libusb_usb_2_0_extension_descriptor</a> *usb_2_0_extension)</td></tr>
<tr class="separator:ga62be3cf1138c5ebd27088543c3b6c94c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga180913fb75c6b9953a739d96b902e2ee"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga180913fb75c6b9953a739d96b902e2ee">libusb_get_ss_usb_device_capability_descriptor</a> (<a class="el" href="structlibusb__context.html">libusb_context</a> *ctx, struct <a class="el" href="structlibusb__bos__dev__capability__descriptor.html">libusb_bos_dev_capability_descriptor</a> *dev_cap, struct <a class="el" href="structlibusb__ss__usb__device__capability__descriptor.html">libusb_ss_usb_device_capability_descriptor</a> **ss_usb_device_cap)</td></tr>
<tr class="separator:ga180913fb75c6b9953a739d96b902e2ee"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3e5c0f36b08e94c9d0c83c723d438afc"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga3e5c0f36b08e94c9d0c83c723d438afc">libusb_free_ss_usb_device_capability_descriptor</a> (struct <a class="el" href="structlibusb__ss__usb__device__capability__descriptor.html">libusb_ss_usb_device_capability_descriptor</a> *ss_usb_device_cap)</td></tr>
<tr class="separator:ga3e5c0f36b08e94c9d0c83c723d438afc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga725a403121776ae8ceb0f467eb8ac418"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga725a403121776ae8ceb0f467eb8ac418">libusb_get_container_id_descriptor</a> (<a class="el" href="structlibusb__context.html">libusb_context</a> *ctx, struct <a class="el" href="structlibusb__bos__dev__capability__descriptor.html">libusb_bos_dev_capability_descriptor</a> *dev_cap, struct <a class="el" href="structlibusb__container__id__descriptor.html">libusb_container_id_descriptor</a> **container_id)</td></tr>
<tr class="separator:ga725a403121776ae8ceb0f467eb8ac418"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga514b8041db6bd4eddab94f652f22c121"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga514b8041db6bd4eddab94f652f22c121">libusb_free_container_id_descriptor</a> (struct <a class="el" href="structlibusb__container__id__descriptor.html">libusb_container_id_descriptor</a> *container_id)</td></tr>
<tr class="separator:ga514b8041db6bd4eddab94f652f22c121"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6ef7597207301c99a13556a0289ba625"><td class="memItemLeft" align="right" valign="top">int API_EXPORTED </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libusb__desc.html#ga6ef7597207301c99a13556a0289ba625">libusb_get_string_descriptor_ascii</a> (<a class="el" href="structlibusb__device__handle.html">libusb_device_handle</a> *dev_handle, uint8_t desc_index, unsigned char *data, int length)</td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>This page details how to examine the various standard USB descriptors for detected devices </p>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="ga6ccabbf3b3728ae69608ba83bba4e64c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga6ccabbf3b3728ae69608ba83bba4e64c">◆ </a></span>libusb_bos_type</h2>
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<table class="memname">
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#ga6ccabbf3b3728ae69608ba83bba4e64c">libusb_bos_type</a></td>
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</table>
</div><div class="memdoc">
<p>USB capability types </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga6ccabbf3b3728ae69608ba83bba4e64cac05dcfcd0a5c0dbaef90b1d09e4b5505"></a>LIBUSB_BT_WIRELESS_USB_DEVICE_CAPABILITY </td><td class="fielddoc"><p>Wireless USB device capability </p>
</td></tr>
<tr><td class="fieldname"><a id="gga6ccabbf3b3728ae69608ba83bba4e64ca243b090db95a0fdf7104fbf581724b86"></a>LIBUSB_BT_USB_2_0_EXTENSION </td><td class="fielddoc"><p>USB 2.0 extensions </p>
</td></tr>
<tr><td class="fieldname"><a id="gga6ccabbf3b3728ae69608ba83bba4e64ca2f1ab0d2d1e14d4942c079749b1b6c85"></a>LIBUSB_BT_SS_USB_DEVICE_CAPABILITY </td><td class="fielddoc"><p>SuperSpeed USB device capability </p>
</td></tr>
<tr><td class="fieldname"><a id="gga6ccabbf3b3728ae69608ba83bba4e64cac3c00e8861b4b596ea1f53c505809e5e"></a>LIBUSB_BT_CONTAINER_ID </td><td class="fielddoc"><p>Container ID type </p>
</td></tr>
</table>
</div>
</div>
<a id="gac529888effbefef8af4f9d17ebc903a1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gac529888effbefef8af4f9d17ebc903a1">◆ </a></span>libusb_class_code</h2>
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<tr>
<td class="memname">enum <a class="el" href="group__libusb__desc.html#gac529888effbefef8af4f9d17ebc903a1">libusb_class_code</a></td>
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</table>
</div><div class="memdoc">
<p>Device and/or Interface Class codes </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1ac6d01c08f92219d625162271d9547550"></a>LIBUSB_CLASS_PER_INTERFACE </td><td class="fielddoc"><p>In the context of a <a class="el" href="structlibusb__device__descriptor.html">device descriptor</a>, this bDeviceClass value indicates that each interface specifies its own class information and all interfaces operate independently. </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a1f87be5c5c32c30e1e6831abdb61461a"></a>LIBUSB_CLASS_AUDIO </td><td class="fielddoc"><p>Audio class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a7db61f0ea65d1919962ac0370513183b"></a>LIBUSB_CLASS_COMM </td><td class="fielddoc"><p>Communications class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1ad126069ffbc9cb3cda97fe0fe8c190f3"></a>LIBUSB_CLASS_HID </td><td class="fielddoc"><p>Human Interface Device class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a7abdd4f2d21f046622717f70ad0b6ea9"></a>LIBUSB_CLASS_PHYSICAL </td><td class="fielddoc"><p>Physical </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1af393b0c8f1da0b9c558f6e5c113b59b2"></a>LIBUSB_CLASS_IMAGE </td><td class="fielddoc"><p>Image class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1ab1592f5d41d4ee3ccfe0adef8cbf04ee"></a>LIBUSB_CLASS_PRINTER </td><td class="fielddoc"><p>Printer class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1ac84d2301375aef28bf5c3f4bda35f9d1"></a>LIBUSB_CLASS_MASS_STORAGE </td><td class="fielddoc"><p>Mass storage class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a28ba55c39b90ba3f281542e4ffdb626d"></a>LIBUSB_CLASS_HUB </td><td class="fielddoc"><p>Hub class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1aa18621124b0db0f8972556647ad16827"></a>LIBUSB_CLASS_DATA </td><td class="fielddoc"><p>Data class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1af4ec75b9ab816c46da747c80bbf9cca0"></a>LIBUSB_CLASS_SMART_CARD </td><td class="fielddoc"><p>Smart Card </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a5d306be7a6fbfb331ce25c8c804eada8"></a>LIBUSB_CLASS_CONTENT_SECURITY </td><td class="fielddoc"><p>Content Security </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a7deae7d18c3d99dda5bb3bd8b6ec01da"></a>LIBUSB_CLASS_VIDEO </td><td class="fielddoc"><p>Video </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1ab97e8441e102707252263abcdc29b4c0"></a>LIBUSB_CLASS_PERSONAL_HEALTHCARE </td><td class="fielddoc"><p>Personal Healthcare </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a5f1089ee11b766a10a27c0c0600bebfa"></a>LIBUSB_CLASS_DIAGNOSTIC_DEVICE </td><td class="fielddoc"><p>Diagnostic Device </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1aaeea39cf3f500f56381cd6e05132d934"></a>LIBUSB_CLASS_WIRELESS </td><td class="fielddoc"><p>Wireless class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1a3a95beae54453469c4862efc1606dcc9"></a>LIBUSB_CLASS_APPLICATION </td><td class="fielddoc"><p>Application class </p>
</td></tr>
<tr><td class="fieldname"><a id="ggac529888effbefef8af4f9d17ebc903a1ad68e1d33a332360428f838c6ddd847f6"></a>LIBUSB_CLASS_VENDOR_SPEC </td><td class="fielddoc"><p>Class is vendor-specific </p>
</td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0a2e8a25dfdebf29fdd4764dcdbc1a9c">◆ </a></span>libusb_descriptor_type</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#ga0a2e8a25dfdebf29fdd4764dcdbc1a9c">libusb_descriptor_type</a></td>
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<p>Descriptor types as defined by the USB specification. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca486e222e9f3053502ce4954a5bd89ba2"></a>LIBUSB_DT_DEVICE </td><td class="fielddoc"><p>Device descriptor. See <a class="el" href="structlibusb__device__descriptor.html">libusb_device_descriptor</a>. </p>
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<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca2a3f906d7755932ab67f39701da0b508"></a>LIBUSB_DT_CONFIG </td><td class="fielddoc"><p>Configuration descriptor. See <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a>. </p>
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<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca2b8ca4332dce1357767ecab20ed2f4c2"></a>LIBUSB_DT_STRING </td><td class="fielddoc"><p>String descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca797f18e35ee27434562aed0c20c46b78"></a>LIBUSB_DT_INTERFACE </td><td class="fielddoc"><p>Interface descriptor. See <a class="el" href="structlibusb__interface__descriptor.html">libusb_interface_descriptor</a>. </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca97df43465eec9e6db81346f521777815"></a>LIBUSB_DT_ENDPOINT </td><td class="fielddoc"><p>Endpoint descriptor. See <a class="el" href="structlibusb__endpoint__descriptor.html">libusb_endpoint_descriptor</a>. </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9caab1245826594605de870d70bffae7f2c"></a>LIBUSB_DT_BOS </td><td class="fielddoc"><p>BOS descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca56875fd1a3df25bdea7680fa9047743c"></a>LIBUSB_DT_DEVICE_CAPABILITY </td><td class="fielddoc"><p>Device Capability descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca3085fb63563770bfa1ede7b27cbf4f5e"></a>LIBUSB_DT_HID </td><td class="fielddoc"><p>HID descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca3972f13fb6b6abdb0978dc43d9d24e6f"></a>LIBUSB_DT_REPORT </td><td class="fielddoc"><p>HID report descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca77c22f3dc80f2a505c22c68cc54c70d3"></a>LIBUSB_DT_PHYSICAL </td><td class="fielddoc"><p>Physical descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca2186edbc7dc05b063ac41103a5ccfa9a"></a>LIBUSB_DT_HUB </td><td class="fielddoc"><p>Hub descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca6892da187e642c8a9b7900e86bf38ba8"></a>LIBUSB_DT_SUPERSPEED_HUB </td><td class="fielddoc"><p>SuperSpeed Hub descriptor </p>
</td></tr>
<tr><td class="fieldname"><a id="gga0a2e8a25dfdebf29fdd4764dcdbc1a9ca9bdd0a16eb0647330c2b7085520db533"></a>LIBUSB_DT_SS_ENDPOINT_COMPANION </td><td class="fielddoc"><p>SuperSpeed Endpoint Companion descriptor </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga86c880af878493aa8f805c2aba654b8b">◆ </a></span>libusb_endpoint_direction</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#ga86c880af878493aa8f805c2aba654b8b">libusb_endpoint_direction</a></td>
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<p>Endpoint direction. Values for bit 7 of the <a class="el" href="structlibusb__endpoint__descriptor.html#a111d087a09cbeded8e15eda9127e23d2">endpoint address</a> scheme. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga86c880af878493aa8f805c2aba654b8ba940484c16d44bdfc6eccc2de7a9ffcb2"></a>LIBUSB_ENDPOINT_OUT </td><td class="fielddoc"><p>Out: host-to-device </p>
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<tr><td class="fieldname"><a id="gga86c880af878493aa8f805c2aba654b8ba3829979c66e5344367f32f4a31d43613"></a>LIBUSB_ENDPOINT_IN </td><td class="fielddoc"><p>In: device-to-host </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga8c93c0ec3fccf1c44e8ec7639619a53e">◆ </a></span>libusb_endpoint_transfer_type</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#ga8c93c0ec3fccf1c44e8ec7639619a53e">libusb_endpoint_transfer_type</a></td>
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<p>Endpoint transfer type. Values for bits 0:1 of the <a class="el" href="structlibusb__endpoint__descriptor.html#a932b84417c46467f9916ecf7b679160b">endpoint attributes</a> field. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga8c93c0ec3fccf1c44e8ec7639619a53ead260fb0157bc6f9aac8eaa2d55c38d4c"></a>LIBUSB_ENDPOINT_TRANSFER_TYPE_CONTROL </td><td class="fielddoc"><p>Control endpoint </p>
</td></tr>
<tr><td class="fieldname"><a id="gga8c93c0ec3fccf1c44e8ec7639619a53eabf397203fed6c0d5600501451aa78d54"></a>LIBUSB_ENDPOINT_TRANSFER_TYPE_ISOCHRONOUS </td><td class="fielddoc"><p>Isochronous endpoint </p>
</td></tr>
<tr><td class="fieldname"><a id="gga8c93c0ec3fccf1c44e8ec7639619a53eac15482644d154a26edbc12ee3aafb9f6"></a>LIBUSB_ENDPOINT_TRANSFER_TYPE_BULK </td><td class="fielddoc"><p>Bulk endpoint </p>
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<tr><td class="fieldname"><a id="gga8c93c0ec3fccf1c44e8ec7639619a53eaaeecf2878d3cb364a163126b191a0a19"></a>LIBUSB_ENDPOINT_TRANSFER_TYPE_INTERRUPT </td><td class="fielddoc"><p>Interrupt endpoint </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa2231202dfe12eddca49b1193d44a441">◆ </a></span>libusb_iso_sync_type</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#gaa2231202dfe12eddca49b1193d44a441">libusb_iso_sync_type</a></td>
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<p>Synchronization type for isochronous endpoints. Values for bits 2:3 of the <a class="el" href="structlibusb__endpoint__descriptor.html#a932b84417c46467f9916ecf7b679160b">bmAttributes</a> field in <a class="el" href="structlibusb__endpoint__descriptor.html">libusb_endpoint_descriptor</a>. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ggaa2231202dfe12eddca49b1193d44a441a4a74eefd565a40b4ed911baaaaea1cee"></a>LIBUSB_ISO_SYNC_TYPE_NONE </td><td class="fielddoc"><p>No synchronization </p>
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<tr><td class="fieldname"><a id="ggaa2231202dfe12eddca49b1193d44a441ab97a868cd66bfcac50f9ccf8ff0b3a67"></a>LIBUSB_ISO_SYNC_TYPE_ASYNC </td><td class="fielddoc"><p>Asynchronous </p>
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<tr><td class="fieldname"><a id="ggaa2231202dfe12eddca49b1193d44a441a813f487563e5b61a8399e7512f0c303b"></a>LIBUSB_ISO_SYNC_TYPE_ADAPTIVE </td><td class="fielddoc"><p>Adaptive </p>
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<tr><td class="fieldname"><a id="ggaa2231202dfe12eddca49b1193d44a441a39244a977707c95c7f3ba0e978faba84"></a>LIBUSB_ISO_SYNC_TYPE_SYNC </td><td class="fielddoc"><p>Synchronous </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gab72474551b0eb965401e6febb856007c">◆ </a></span>libusb_iso_usage_type</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#gab72474551b0eb965401e6febb856007c">libusb_iso_usage_type</a></td>
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<p>Usage type for isochronous endpoints. Values for bits 4:5 of the <a class="el" href="structlibusb__endpoint__descriptor.html#a932b84417c46467f9916ecf7b679160b">bmAttributes</a> field in <a class="el" href="structlibusb__endpoint__descriptor.html">libusb_endpoint_descriptor</a>. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ggab72474551b0eb965401e6febb856007ca13edfd0d36d959bcf32d5cca341c7f38"></a>LIBUSB_ISO_USAGE_TYPE_DATA </td><td class="fielddoc"><p>Data endpoint </p>
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<tr><td class="fieldname"><a id="ggab72474551b0eb965401e6febb856007ca2390aa76c4444e0b590fb65f305e4485"></a>LIBUSB_ISO_USAGE_TYPE_FEEDBACK </td><td class="fielddoc"><p>Feedback endpoint </p>
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<tr><td class="fieldname"><a id="ggab72474551b0eb965401e6febb856007ca8e48a0bad38cfaf0e87dfdc225f91e32"></a>LIBUSB_ISO_USAGE_TYPE_IMPLICIT </td><td class="fielddoc"><p>Implicit feedback Data endpoint </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gaad5a5399176a35a64164dafad7fe4fcd">◆ </a></span>libusb_ss_usb_device_capability_attributes</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#gaad5a5399176a35a64164dafad7fe4fcd">libusb_ss_usb_device_capability_attributes</a></td>
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<p>Masks for the bits of the <a class="el" href="structlibusb__ss__usb__device__capability__descriptor.html#ad387790c14d8d6eefe6aa1b4a55006bf">bmAttributes</a> field field of the SuperSpeed USB Device Capability descriptor. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ggaad5a5399176a35a64164dafad7fe4fcda5987a17b394338df71c1e04c5c75bc21"></a>LIBUSB_BM_LTM_SUPPORT </td><td class="fielddoc"><p>Supports Latency Tolerance Messages (LTM) </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga1454797ecc0de4d084c1619c420014f6">◆ </a></span>libusb_supported_speed</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#ga1454797ecc0de4d084c1619c420014f6">libusb_supported_speed</a></td>
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<p>Supported speeds (wSpeedSupported) bitfield. Indicates what speeds the device supports. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga1454797ecc0de4d084c1619c420014f6aa7707c4cef77f4be8aceef859fad2087"></a>LIBUSB_LOW_SPEED_OPERATION </td><td class="fielddoc"><p>Low speed operation supported (1.5MBit/s). </p>
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<tr><td class="fieldname"><a id="gga1454797ecc0de4d084c1619c420014f6adbebc659daf53947527259172f81b41a"></a>LIBUSB_FULL_SPEED_OPERATION </td><td class="fielddoc"><p>Full speed operation supported (12MBit/s). </p>
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<tr><td class="fieldname"><a id="gga1454797ecc0de4d084c1619c420014f6a2db8b2bb845a23ad1083521ff5b6e9a8"></a>LIBUSB_HIGH_SPEED_OPERATION </td><td class="fielddoc"><p>High speed operation supported (480MBit/s). </p>
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<tr><td class="fieldname"><a id="gga1454797ecc0de4d084c1619c420014f6accd7b9361912b76e40348dc30e6dc7f4"></a>LIBUSB_SUPER_SPEED_OPERATION </td><td class="fielddoc"><p>Superspeed operation supported (5000MBit/s). </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gacb8cfa928bffdd0066a3dd2e6aba0558">◆ </a></span>libusb_usb_2_0_extension_attributes</h2>
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<td class="memname">enum <a class="el" href="group__libusb__desc.html#gacb8cfa928bffdd0066a3dd2e6aba0558">libusb_usb_2_0_extension_attributes</a></td>
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<p>Masks for the bits of the <a class="el" href="structlibusb__usb__2__0__extension__descriptor.html#ab22e1857d38c9205aaecca52b2e20ae0">bmAttributes</a> field of the USB 2.0 Extension descriptor. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ggacb8cfa928bffdd0066a3dd2e6aba0558a02f60b018f4bc01e8813da813779b792"></a>LIBUSB_BM_LPM_SUPPORT </td><td class="fielddoc"><p>Supports Link Power Management (LPM) </p>
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<h2 class="groupheader">Function Documentation</h2>
<a id="gafb5dd71009651559150cf69cd311b1fa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gafb5dd71009651559150cf69cd311b1fa">◆ </a></span>libusb_free_bos_descriptor()</h2>
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<td class="memname"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED libusb_free_bos_descriptor </td>
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<td class="paramtype">struct <a class="el" href="structlibusb__bos__descriptor.html">libusb_bos_descriptor</a> * </td>
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<p>Free a BOS descriptor obtained from <a class="el" href="group__libusb__desc.html#ga26fc77ae66420d9bb4fac1ccc987bc78">libusb_get_bos_descriptor()</a>. It is safe to call this function with a NULL bos parameter, in which case the function simply returns.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">bos</td><td>the BOS descriptor to free </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ga5216fee4a9565a04cfe7f5cd11903402">◆ </a></span>libusb_free_config_descriptor()</h2>
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<td class="memname"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED libusb_free_config_descriptor </td>
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<td class="paramtype">struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> * </td>
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<p>Free a configuration descriptor obtained from <a class="el" href="group__libusb__desc.html#ga75d1bb1f08171defd7bde6ec5746c0e5">libusb_get_active_config_descriptor()</a> or <a class="el" href="group__libusb__desc.html#ga46e2cc3640dac4055b2f4787bacdc1bb">libusb_get_config_descriptor()</a>. It is safe to call this function with a NULL config parameter, in which case the function simply returns.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">config</td><td>the configuration descriptor to free </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga514b8041db6bd4eddab94f652f22c121">◆ </a></span>libusb_free_container_id_descriptor()</h2>
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<td class="memname"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED libusb_free_container_id_descriptor </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structlibusb__container__id__descriptor.html">libusb_container_id_descriptor</a> * </td>
<td class="paramname"><em>container_id</em></td><td>)</td>
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<p>Free a Container ID descriptor obtained from <a class="el" href="group__libusb__desc.html#ga725a403121776ae8ceb0f467eb8ac418">libusb_get_container_id_descriptor()</a>. It is safe to call this function with a NULL container_id parameter, in which case the function simply returns.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">container_id</td><td>the Container ID descriptor to free </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0bb786eb3137d3959d4bcb652f7562ff">◆ </a></span>libusb_free_ss_endpoint_companion_descriptor()</h2>
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<td class="memname"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED libusb_free_ss_endpoint_companion_descriptor </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structlibusb__ss__endpoint__companion__descriptor.html">libusb_ss_endpoint_companion_descriptor</a> * </td>
<td class="paramname"><em>ep_comp</em></td><td>)</td>
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<p>Free a superspeed endpoint companion descriptor obtained from <a class="el" href="group__libusb__desc.html#ga02cf813c89e3b85a8b0af8c0efab8345">libusb_get_ss_endpoint_companion_descriptor()</a>. It is safe to call this function with a NULL ep_comp parameter, in which case the function simply returns.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ep_comp</td><td>the superspeed endpoint companion descriptor to free </td></tr>
</table>
</dd>
</dl>
</div>
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<a id="ga3e5c0f36b08e94c9d0c83c723d438afc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga3e5c0f36b08e94c9d0c83c723d438afc">◆ </a></span>libusb_free_ss_usb_device_capability_descriptor()</h2>
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<td class="memname"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED libusb_free_ss_usb_device_capability_descriptor </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structlibusb__ss__usb__device__capability__descriptor.html">libusb_ss_usb_device_capability_descriptor</a> * </td>
<td class="paramname"><em>ss_usb_device_cap</em></td><td>)</td>
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<p>Free a SuperSpeed USB Device Capability descriptor obtained from <a class="el" href="group__libusb__desc.html#ga180913fb75c6b9953a739d96b902e2ee">libusb_get_ss_usb_device_capability_descriptor()</a>. It is safe to call this function with a NULL ss_usb_device_cap parameter, in which case the function simply returns.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ss_usb_device_cap</td><td>the SuperSpeed USB Device Capability descriptor to free </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga62be3cf1138c5ebd27088543c3b6c94c">◆ </a></span>libusb_free_usb_2_0_extension_descriptor()</h2>
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<td class="memname"><a class="el" href="group__libusb__asyncio.html#ga8ca3594d1761da8da91be2851f4e8f21">void</a> API_EXPORTED libusb_free_usb_2_0_extension_descriptor </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structlibusb__usb__2__0__extension__descriptor.html">libusb_usb_2_0_extension_descriptor</a> * </td>
<td class="paramname"><em>usb_2_0_extension</em></td><td>)</td>
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<p>Free a USB 2.0 Extension descriptor obtained from <a class="el" href="group__libusb__desc.html#ga8954bc032f9b9c099e1a25ec20f6ccfc">libusb_get_usb_2_0_extension_descriptor()</a>. It is safe to call this function with a NULL usb_2_0_extension parameter, in which case the function simply returns.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">usb_2_0_extension</td><td>the USB 2.0 Extension descriptor to free </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga75d1bb1f08171defd7bde6ec5746c0e5">◆ </a></span>libusb_get_active_config_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_active_config_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__device.html">libusb_device</a> * </td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> ** </td>
<td class="paramname"><em>config</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Get the USB configuration descriptor for the currently active configuration. This is a non-blocking function which does not involve any requests being sent to the device.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dev</td><td>a device </td></tr>
<tr><td class="paramname">config</td><td>output location for the USB configuration descriptor. Only valid if 0 was returned. Must be freed with <a class="el" href="group__libusb__desc.html#ga5216fee4a9565a04cfe7f5cd11903402">libusb_free_config_descriptor()</a> after use. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success </dd>
<dd>
LIBUSB_ERROR_NOT_FOUND if the device is in unconfigured state </dd>
<dd>
another LIBUSB_ERROR code on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__libusb__desc.html#ga46e2cc3640dac4055b2f4787bacdc1bb">libusb_get_config_descriptor</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga26fc77ae66420d9bb4fac1ccc987bc78">◆ </a></span>libusb_get_bos_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_bos_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__device__handle.html">libusb_device_handle</a> * </td>
<td class="paramname"><em>dev_handle</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__bos__descriptor.html">libusb_bos_descriptor</a> ** </td>
<td class="paramname"><em>bos</em> </td>
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<tr>
<td></td>
<td>)</td>
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<p>Get a Binary Object Store (BOS) descriptor This is a BLOCKING function, which will send requests to the device.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dev_handle</td><td>the handle of an open libusb device </td></tr>
<tr><td class="paramname">bos</td><td>output location for the BOS descriptor. Only valid if 0 was returned. Must be freed with <a class="el" href="group__libusb__desc.html#gafb5dd71009651559150cf69cd311b1fa">libusb_free_bos_descriptor()</a> after use. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success </dd>
<dd>
LIBUSB_ERROR_NOT_FOUND if the device doesn't have a BOS descriptor </dd>
<dd>
another LIBUSB_ERROR code on error </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga46e2cc3640dac4055b2f4787bacdc1bb">◆ </a></span>libusb_get_config_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_config_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__device.html">libusb_device</a> * </td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t </td>
<td class="paramname"><em>config_index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> ** </td>
<td class="paramname"><em>config</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Get a USB configuration descriptor based on its index. This is a non-blocking function which does not involve any requests being sent to the device.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dev</td><td>a device </td></tr>
<tr><td class="paramname">config_index</td><td>the index of the configuration you wish to retrieve </td></tr>
<tr><td class="paramname">config</td><td>output location for the USB configuration descriptor. Only valid if 0 was returned. Must be freed with <a class="el" href="group__libusb__desc.html#ga5216fee4a9565a04cfe7f5cd11903402">libusb_free_config_descriptor()</a> after use. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success </dd>
<dd>
LIBUSB_ERROR_NOT_FOUND if the configuration does not exist </dd>
<dd>
another LIBUSB_ERROR code on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__libusb__desc.html#ga75d1bb1f08171defd7bde6ec5746c0e5">libusb_get_active_config_descriptor()</a> </dd>
<dd>
<a class="el" href="group__libusb__desc.html#ga7f2584522c79256f188ec449bb0aabad">libusb_get_config_descriptor_by_value()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7f2584522c79256f188ec449bb0aabad">◆ </a></span>libusb_get_config_descriptor_by_value()</h2>
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<td class="memname">int API_EXPORTED libusb_get_config_descriptor_by_value </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__device.html">libusb_device</a> * </td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t </td>
<td class="paramname"><em>bConfigurationValue</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__config__descriptor.html">libusb_config_descriptor</a> ** </td>
<td class="paramname"><em>config</em> </td>
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<td>)</td>
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<p>Get a USB configuration descriptor with a specific bConfigurationValue. This is a non-blocking function which does not involve any requests being sent to the device.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dev</td><td>a device </td></tr>
<tr><td class="paramname">bConfigurationValue</td><td>the bConfigurationValue of the configuration you wish to retrieve </td></tr>
<tr><td class="paramname">config</td><td>output location for the USB configuration descriptor. Only valid if 0 was returned. Must be freed with <a class="el" href="group__libusb__desc.html#ga5216fee4a9565a04cfe7f5cd11903402">libusb_free_config_descriptor()</a> after use. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success </dd>
<dd>
LIBUSB_ERROR_NOT_FOUND if the configuration does not exist </dd>
<dd>
another LIBUSB_ERROR code on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__libusb__desc.html#ga75d1bb1f08171defd7bde6ec5746c0e5">libusb_get_active_config_descriptor()</a> </dd>
<dd>
<a class="el" href="group__libusb__desc.html#ga46e2cc3640dac4055b2f4787bacdc1bb">libusb_get_config_descriptor()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga725a403121776ae8ceb0f467eb8ac418">◆ </a></span>libusb_get_container_id_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_container_id_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__context.html">libusb_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__bos__dev__capability__descriptor.html">libusb_bos_dev_capability_descriptor</a> * </td>
<td class="paramname"><em>dev_cap</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__container__id__descriptor.html">libusb_container_id_descriptor</a> ** </td>
<td class="paramname"><em>container_id</em> </td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Get a Container ID descriptor</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>the context to operate on, or NULL for the default context </td></tr>
<tr><td class="paramname">dev_cap</td><td>Device Capability descriptor with a bDevCapabilityType of <a class="el" href="group__libusb__desc.html#gga6ccabbf3b3728ae69608ba83bba4e64cac3c00e8861b4b596ea1f53c505809e5e">libusb_capability_type::LIBUSB_BT_CONTAINER_ID</a> LIBUSB_BT_CONTAINER_ID </td></tr>
<tr><td class="paramname">container_id</td><td>output location for the Container ID descriptor. Only valid if 0 was returned. Must be freed with <a class="el" href="group__libusb__desc.html#ga514b8041db6bd4eddab94f652f22c121">libusb_free_container_id_descriptor()</a> after use. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success </dd>
<dd>
a LIBUSB_ERROR code on error </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga00c49c14505cf3fdaeb902176591105f">◆ </a></span>libusb_get_device_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_device_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__device.html">libusb_device</a> * </td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__device__descriptor.html">libusb_device_descriptor</a> * </td>
<td class="paramname"><em>desc</em> </td>
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<td></td>
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<p>Get the USB device descriptor for a given device.</p>
<p>This is a non-blocking function; the device descriptor is cached in memory.</p>
<p>Note since libusb-1.0.16, <a class="el" href="group__libusb__misc.html#gaabe4bc36a83358685d36a6c853cbb4de">LIBUSB_API_VERSION</a> >= 0x01000102, this function always succeeds.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dev</td><td>the device </td></tr>
<tr><td class="paramname">desc</td><td>output location for the descriptor data </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success or a LIBUSB_ERROR code on failure </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga02cf813c89e3b85a8b0af8c0efab8345">◆ </a></span>libusb_get_ss_endpoint_companion_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_ss_endpoint_companion_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__context.html">libusb_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const struct <a class="el" href="structlibusb__endpoint__descriptor.html">libusb_endpoint_descriptor</a> * </td>
<td class="paramname"><em>endpoint</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__ss__endpoint__companion__descriptor.html">libusb_ss_endpoint_companion_descriptor</a> ** </td>
<td class="paramname"><em>ep_comp</em> </td>
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<td></td>
<td>)</td>
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<p>Get an endpoints superspeed endpoint companion descriptor (if any)</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>the context to operate on, or NULL for the default context </td></tr>
<tr><td class="paramname">endpoint</td><td>endpoint descriptor from which to get the superspeed endpoint companion descriptor </td></tr>
<tr><td class="paramname">ep_comp</td><td>output location for the superspeed endpoint companion descriptor. Only valid if 0 was returned. Must be freed with <a class="el" href="group__libusb__desc.html#ga0bb786eb3137d3959d4bcb652f7562ff">libusb_free_ss_endpoint_companion_descriptor()</a> after use. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success </dd>
<dd>
LIBUSB_ERROR_NOT_FOUND if the configuration does not exist </dd>
<dd>
another LIBUSB_ERROR code on error </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga180913fb75c6b9953a739d96b902e2ee">◆ </a></span>libusb_get_ss_usb_device_capability_descriptor()</h2>
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<td class="memname">int API_EXPORTED libusb_get_ss_usb_device_capability_descriptor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structlibusb__context.html">libusb_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__bos__dev__capability__descriptor.html">libusb_bos_dev_capability_descriptor</a> * </td>
<td class="paramname"><em>dev_cap</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structlibusb__ss__usb__device__capability__descriptor.html">libusb_ss_usb_device_capability_descriptor</a> ** </td>
<td class="paramname"><em>ss_usb_device_cap</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Get a SuperSpeed USB Device Capability descriptor</p>