1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>nand_scan_bbt</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="MTD NAND Driver Programming Interface"><link rel="up" href="pubfunctions.html" title="Chapter&#160;10.&#160;Public Functions Provided"><link rel="prev" href="API-nand-release.html" title="nand_release"><link rel="next" href="API---nand-calculate-ecc.html" title="__nand_calculate_ecc"></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">nand_scan_bbt</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-nand-release.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;10.&#160;Public Functions Provided</th><td width="20%" align="right">&#160;<a accesskey="n" href="API---nand-calculate-ecc.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-nand-scan-bbt"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>nand_scan_bbt &#8212; 
2  [NAND Interface] scan, find, read and maybe create bad block table(s)
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">nand_scan_bbt </b>(</code></td><td>struct mtd_info * <var class="pdparam">mtd</var>, </td></tr><tr><td>&#160;</td><td>struct nand_bbt_descr * <var class="pdparam">bd</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1102791172"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>mtd</code></em></span></dt><dd><p>
4     MTD device structure
5    </p></dd><dt><span class="term"><em class="parameter"><code>bd</code></em></span></dt><dd><p>
6     descriptor for the good/bad block search pattern
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1102793716"></a><h2>Description</h2><p>
8   The function checks, if a bad block table(s) is/are already available. If
9   not it scans the device for manufacturer marked good / bad blocks and writes
10   the bad block table(s) to the selected place.
11   </p><p>
12
13   The bad block table memory is allocated here. It must be freed by calling
14   the nand_free_bbt function.
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