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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>SdFat: fat32_fsinfo Struct Reference</title>
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<div id="projectname">SdFat</div>
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<div class="title">fat32_fsinfo Struct Reference</div> </div>
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<p>FSINFO sector for a FAT32 volume.
<a href="structfat32__fsinfo.html#details">More...</a></p>
<p><code>#include &lt;SdFatStructs.h&gt;</code></p>
<p><a href="structfat32__fsinfo-members.html">List of all members.</a></p>
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Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a6c2d84388c0a38a74f7682fd602492c7">freeCount</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#aa8ee056cc1beb1355e15610c1beba5e3">leadSignature</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a539b3bb0a2ead9df417df9ac8b6b1606">nextFree</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#ac24bd4801a60a54e5133ed1bb71bcdaa">reserved1</a> [480]</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a9ec0e2756cd7e169268798a558df3814">reserved2</a> [12]</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#aa4a9ed657a0f58a7a1c75760c3a79fd4">structSignature</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a484dd16425e4e687dc914d12309470e0">tailSignature</a> [4]</td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>FSINFO sector for a FAT32 volume. </p>
</div><hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="a6c2d84388c0a38a74f7682fd602492c7"></a><!-- doxytag: member="fat32_fsinfo::freeCount" ref="a6c2d84388c0a38a74f7682fd602492c7" args="" -->
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<td class="memname">uint32_t <a class="el" href="structfat32__fsinfo.html#a6c2d84388c0a38a74f7682fd602492c7">fat32_fsinfo::freeCount</a></td>
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<p>Contains the last known free cluster count on the volume. If the value is 0xFFFFFFFF, then the free count is unknown and must be computed. Any other value can be used, but is not necessarily correct. It should be range checked at least to make sure it is &lt;= volume cluster count. </p>
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<a class="anchor" id="aa8ee056cc1beb1355e15610c1beba5e3"></a><!-- doxytag: member="fat32_fsinfo::leadSignature" ref="aa8ee056cc1beb1355e15610c1beba5e3" args="" -->
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<td class="memname">uint32_t <a class="el" href="structfat32__fsinfo.html#aa8ee056cc1beb1355e15610c1beba5e3">fat32_fsinfo::leadSignature</a></td>
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<p>must be 0X52, 0X52, 0X61, 0X41 </p>
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<a class="anchor" id="a539b3bb0a2ead9df417df9ac8b6b1606"></a><!-- doxytag: member="fat32_fsinfo::nextFree" ref="a539b3bb0a2ead9df417df9ac8b6b1606" args="" -->
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<td class="memname">uint32_t <a class="el" href="structfat32__fsinfo.html#a539b3bb0a2ead9df417df9ac8b6b1606">fat32_fsinfo::nextFree</a></td>
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<p>This is a hint for the FAT driver. It indicates the cluster number at which the driver should start looking for free clusters. If the value is 0xFFFFFFFF, then there is no hint and the driver should start looking at cluster 2. </p>
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<a class="anchor" id="ac24bd4801a60a54e5133ed1bb71bcdaa"></a><!-- doxytag: member="fat32_fsinfo::reserved1" ref="ac24bd4801a60a54e5133ed1bb71bcdaa" args="[480]" -->
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<td class="memname">uint8_t <a class="el" href="structfat32__fsinfo.html#ac24bd4801a60a54e5133ed1bb71bcdaa">fat32_fsinfo::reserved1</a>[480]</td>
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<p>must be zero </p>
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<a class="anchor" id="a9ec0e2756cd7e169268798a558df3814"></a><!-- doxytag: member="fat32_fsinfo::reserved2" ref="a9ec0e2756cd7e169268798a558df3814" args="[12]" -->
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<td class="memname">uint8_t <a class="el" href="structfat32__fsinfo.html#a9ec0e2756cd7e169268798a558df3814">fat32_fsinfo::reserved2</a>[12]</td>
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<p>must be zero </p>
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<a class="anchor" id="aa4a9ed657a0f58a7a1c75760c3a79fd4"></a><!-- doxytag: member="fat32_fsinfo::structSignature" ref="aa4a9ed657a0f58a7a1c75760c3a79fd4" args="" -->
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<td class="memname">uint32_t <a class="el" href="structfat32__fsinfo.html#aa4a9ed657a0f58a7a1c75760c3a79fd4">fat32_fsinfo::structSignature</a></td>
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<p>must be 0X72, 0X72, 0X41, 0X61 </p>
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<a class="anchor" id="a484dd16425e4e687dc914d12309470e0"></a><!-- doxytag: member="fat32_fsinfo::tailSignature" ref="a484dd16425e4e687dc914d12309470e0" args="[4]" -->
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<td class="memname">uint8_t <a class="el" href="structfat32__fsinfo.html#a484dd16425e4e687dc914d12309470e0">fat32_fsinfo::tailSignature</a>[4]</td>
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<p>must be 0X00, 0X00, 0X55, 0XAA </p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>Arduino/libraries/SdFat/<a class="el" href="_sd_fat_structs_8h.html">SdFatStructs.h</a></li>
</ul>
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<hr class="footer"/><address class="footer"><small>Generated on Thu Feb 7 2013 12:51:21 for SdFat by&#160;
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