1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>struct rs_control</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Reed-Solomon Library Programming Interface"><link rel="up" href="structs.html" title="Chapter&#160;4.&#160;Structures"><link rel="prev" href="structs.html" title="Chapter&#160;4.&#160;Structures"><link rel="next" href="pubfunctions.html" title="Chapter&#160;5.&#160;Public Functions Provided"></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 rs_control</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="structs.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;4.&#160;Structures</th><td width="20%" align="right">&#160;<a accesskey="n" href="pubfunctions.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-struct-rs-control"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct rs_control &#8212; 
2  rs control structure
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting">
4struct rs_control {
5  int mm;
6  int nn;
7  uint16_t * alpha_to;
8  uint16_t * index_of;
9  uint16_t * genpoly;
10  int nroots;
11  int fcr;
12  int prim;
13  int iprim;
14  int gfpoly;
15  int (* gffunc) (int);
16  int users;
17  struct list_head list;
18};  </pre></div><div class="refsect1"><a name="idp1121088308"></a><h2>Members</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">mm</span></dt><dd><p>
19Bits per symbol
20      </p></dd><dt><span class="term">nn</span></dt><dd><p>
21Symbols per block (= (1&lt;&lt;mm)-1)
22      </p></dd><dt><span class="term">alpha_to</span></dt><dd><p>
23log lookup table
24      </p></dd><dt><span class="term">index_of</span></dt><dd><p>
25Antilog lookup table
26      </p></dd><dt><span class="term">genpoly</span></dt><dd><p>
27Generator polynomial
28      </p></dd><dt><span class="term">nroots</span></dt><dd><p>
29Number of generator roots = number of parity symbols
30      </p></dd><dt><span class="term">fcr</span></dt><dd><p>
31First consecutive root, index form
32      </p></dd><dt><span class="term">prim</span></dt><dd><p>
33Primitive element, index form
34      </p></dd><dt><span class="term">iprim</span></dt><dd><p>
35prim-th root of 1, index form
36      </p></dd><dt><span class="term">gfpoly</span></dt><dd><p>
37The primitive generator polynominal
38      </p></dd><dt><span class="term">gffunc</span></dt><dd><p>
39Function to generate the field, if non-canonical representation
40      </p></dd><dt><span class="term">users</span></dt><dd><p>
41Users of this structure
42      </p></dd><dt><span class="term">list</span></dt><dd><p>
43List entry for the rs control list
44      </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="structs.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="structs.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="pubfunctions.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter&#160;4.&#160;Structures&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;Chapter&#160;5.&#160;Public Functions Provided</td></tr></table></div></body></html>
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