1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>struct hsi_msg</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="hsi.html" title="Chapter&#160;11.&#160;High Speed Synchronous Serial Interface (HSI)"><link rel="prev" href="API-struct-hsi-client-driver.html" title="struct hsi_client_driver"><link rel="next" href="API-struct-hsi-port.html" title="struct hsi_port"></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 hsi_msg</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-hsi-client-driver.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;11.&#160;High Speed Synchronous Serial Interface (HSI)</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-struct-hsi-port.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-struct-hsi-msg"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct hsi_msg &#8212; 
2     HSI message descriptor
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting">
4struct hsi_msg {
5  struct list_head link;
6  struct hsi_client * cl;
7  struct sg_table sgt;
8  void * context;
9  void (* complete) (struct hsi_msg *msg);
10  void (* destructor) (struct hsi_msg *msg);
11  int status;
12  unsigned int actual_len;
13  unsigned int channel;
14  unsigned int ttype:1;
15  unsigned int break_frame:1;
16};  </pre></div><div class="refsect1"><a name="idp1115610564"></a><h2>Members</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">link</span></dt><dd><p>
17   Free to use by the current descriptor owner
18      </p></dd><dt><span class="term">cl</span></dt><dd><p>
19   HSI device client that issues the transfer
20      </p></dd><dt><span class="term">sgt</span></dt><dd><p>
21   Head of the scatterlist array
22      </p></dd><dt><span class="term">context</span></dt><dd><p>
23   Client context data associated to the transfer
24      </p></dd><dt><span class="term">complete</span></dt><dd><p>
25   Transfer completion callback
26      </p></dd><dt><span class="term">destructor</span></dt><dd><p>
27   Destructor to free resources when flushing
28      </p></dd><dt><span class="term">status</span></dt><dd><p>
29   Status of the transfer when completed
30      </p></dd><dt><span class="term">actual_len</span></dt><dd><p>
31   Actual length of data transferred on completion
32      </p></dd><dt><span class="term">channel</span></dt><dd><p>
33   Channel were to TX/RX the message
34      </p></dd><dt><span class="term">ttype</span></dt><dd><p>
35   Transfer type (TX if set, RX otherwise)
36      </p></dd><dt><span class="term">break_frame</span></dt><dd><p>
37   if true HSI will send/receive a break frame. Data buffers are
38   ignored in the request.
39      </p></dd></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-struct-hsi-client-driver.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="hsi.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-struct-hsi-port.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">struct hsi_client_driver</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">struct hsi_port</span></td></tr></table></div></body></html>
40