1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>struct drm_dp_mst_port</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux DRM Developer's Guide"><link rel="up" href="ch02s05.html#idp1125934820" title="Display Port MST Helper Functions Reference"><link rel="prev" href="API-struct-drm-dp-vcpi.html" title="struct drm_dp_vcpi"><link rel="next" href="API-struct-drm-dp-mst-branch.html" title="struct drm_dp_mst_branch"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">struct drm_dp_mst_port</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-drm-dp-vcpi.html">Prev</a> </td><th width="60%" align="center">Display Port MST Helper Functions Reference</th><td width="20%" align="right"> <a accesskey="n" href="API-struct-drm-dp-mst-branch.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-struct-drm-dp-mst-port"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct drm_dp_mst_port — 2 MST port 3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting"> 4struct drm_dp_mst_port { 5 struct kref kref; 6 u8 port_num; 7 bool input; 8 bool mcs; 9 bool ddps; 10 u8 pdt; 11 bool ldps; 12 u8 dpcd_rev; 13 u8 num_sdp_streams; 14 u8 num_sdp_stream_sinks; 15 uint16_t available_pbn; 16 struct list_head next; 17 struct drm_dp_mst_branch * mstb; 18 struct drm_dp_aux aux; 19 struct drm_dp_mst_branch * parent; 20 struct drm_dp_vcpi vcpi; 21 struct drm_connector * connector; 22 struct drm_dp_mst_topology_mgr * mgr; 23}; </pre></div><div class="refsect1"><a name="idp1125947364"></a><h2>Members</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">kref</span></dt><dd><p> 24 reference count for this port. 25 </p></dd><dt><span class="term">port_num</span></dt><dd><p> 26 port number 27 </p></dd><dt><span class="term">input</span></dt><dd><p> 28 if this port is an input port. 29 </p></dd><dt><span class="term">mcs</span></dt><dd><p> 30 message capability status - DP 1.2 spec. 31 </p></dd><dt><span class="term">ddps</span></dt><dd><p> 32 DisplayPort Device Plug Status - DP 1.2 33 </p></dd><dt><span class="term">pdt</span></dt><dd><p> 34 Peer Device Type 35 </p></dd><dt><span class="term">ldps</span></dt><dd><p> 36 Legacy Device Plug Status 37 </p></dd><dt><span class="term">dpcd_rev</span></dt><dd><p> 38 DPCD revision of device on this port 39 </p></dd><dt><span class="term">num_sdp_streams</span></dt><dd><p> 40 Number of simultaneous streams 41 </p></dd><dt><span class="term">num_sdp_stream_sinks</span></dt><dd><p> 42 Number of stream sinks 43 </p></dd><dt><span class="term">available_pbn</span></dt><dd><p> 44 Available bandwidth for this port. 45 </p></dd><dt><span class="term">next</span></dt><dd><p> 46 link to next port on this branch device 47 </p></dd><dt><span class="term">mstb</span></dt><dd><p> 48 branch device attach below this port 49 </p></dd><dt><span class="term">aux</span></dt><dd><p> 50 i2c aux transport to talk to device connected to this port. 51 </p></dd><dt><span class="term">parent</span></dt><dd><p> 52 branch device parent of this port 53 </p></dd><dt><span class="term">vcpi</span></dt><dd><p> 54 Virtual Channel Payload info for this port. 55 </p></dd><dt><span class="term">connector</span></dt><dd><p> 56 DRM connector this port is connected to. 57 </p></dd><dt><span class="term">mgr</span></dt><dd><p> 58 topology manager this port lives under. 59 </p></dd></dl></div></div><div class="refsect1"><a name="idp1125960700"></a><h2>Description</h2><p> 60 This structure represents an MST port endpoint on a device somewhere 61 in the MST topology. 62</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-struct-drm-dp-vcpi.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch02s05.html#idp1125934820">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-struct-drm-dp-mst-branch.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">struct drm_dp_vcpi</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">struct drm_dp_mst_branch</span></td></tr></table></div></body></html> 63