<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>read_abs_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="intfunctions.html" title="Chapter 11. Internal Functions Provided"><link rel="prev" href="API-read-bbt.html" title="read_bbt"><link rel="next" href="API-scan-read-oob.html" title="scan_read_oob"></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">read_abs_bbt</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-read-bbt.html">Prev</a> </td><th width="60%" align="center">Chapter 11. Internal Functions Provided</th><td width="20%" align="right"> <a accesskey="n" href="API-scan-read-oob.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-read-abs-bbt"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>read_abs_bbt —
[GENERIC] Read the bad block table starting at a given page
</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">read_abs_bbt </b>(</code></td><td>struct mtd_info * <var class="pdparam">mtd</var>, </td></tr><tr><td> </td><td>uint8_t * <var class="pdparam">buf</var>, </td></tr><tr><td> </td><td>struct nand_bbt_descr * <var class="pdparam">td</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">chip</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idp331793716"></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>
MTD device structure
</p></dd><dt><span class="term"><em class="parameter"><code>buf</code></em></span></dt><dd><p>
temporary buffer
</p></dd><dt><span class="term"><em class="parameter"><code>td</code></em></span></dt><dd><p>
descriptor for the bad block table
</p></dd><dt><span class="term"><em class="parameter"><code>chip</code></em></span></dt><dd><p>
read the table for a specific chip, -1 read all chips; applies only if
NAND_BBT_PERCHIP option is set
</p></dd></dl></div></div><div class="refsect1"><a name="idp331798452"></a><h2>Description</h2><p>
Read the bad block table for all chips starting at a given page. We assume
that the bbt bits are in consecutive order.
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