<?xml version="1.0" encoding="ANSI_X3.4-1968" standalone="no"?> <!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/html; charset=ANSI_X3.4-1968" /><title>struct rs_control</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Reed-Solomon Library Programming Interface" /><link rel="up" href="ch04.html" title="Chapter 4. Structures" /><link rel="prev" href="ch04.html" title="Chapter 4. Structures" /><link rel="next" href="ch05.html" title="Chapter 5. Public Functions Provided" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>struct rs_control</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch04.html">Prev</a> </td><th width="60%" align="center">Chapter 4. Structures</th><td width="20%" align="right"> <a accesskey="n" href="ch05.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="struct rs_control"><a id="API-struct-rs-control"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct rs_control — rs control structure </p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><pre class="programlisting"> struct rs_control { int mm; int nn; uint16_t * alpha_to; uint16_t * index_of; uint16_t * genpoly; int nroots; int fcr; int prim; int iprim; int gfpoly; int (* gffunc) (int); int users; struct list_head list; }; </pre></div><div class="refsect1" title="Members"><a id="id3053368"></a><h2>Members</h2><div class="variablelist"><dl><dt><span class="term">mm</span></dt><dd><p> Bits per symbol </p></dd><dt><span class="term">nn</span></dt><dd><p> Symbols per block (= (1<<mm)-1) </p></dd><dt><span class="term">alpha_to</span></dt><dd><p> log lookup table </p></dd><dt><span class="term">index_of</span></dt><dd><p> Antilog lookup table </p></dd><dt><span class="term">genpoly</span></dt><dd><p> Generator polynomial </p></dd><dt><span class="term">nroots</span></dt><dd><p> Number of generator roots = number of parity symbols </p></dd><dt><span class="term">fcr</span></dt><dd><p> First consecutive root, index form </p></dd><dt><span class="term">prim</span></dt><dd><p> Primitive element, index form </p></dd><dt><span class="term">iprim</span></dt><dd><p> prim-th root of 1, index form </p></dd><dt><span class="term">gfpoly</span></dt><dd><p> The primitive generator polynominal </p></dd><dt><span class="term">gffunc</span></dt><dd><p> Function to generate the field, if non-canonical representation </p></dd><dt><span class="term">users</span></dt><dd><p> Users of this structure </p></dd><dt><span class="term">list</span></dt><dd><p> List entry for the rs control list </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="ch04.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch04.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch05.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 4. Structures </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 5. Public Functions Provided</td></tr></table></div></body></html>