173 lines
7.9 KiB
HTML
173 lines
7.9 KiB
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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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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>SdFat: fat32_fsinfo Struct Reference</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<!-- Generated by Doxygen 1.7.4 -->
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<div id="projectname">SdFat</div>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<li class="current"><a href="annotated.html"><span>Classes</span></a></li>
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<li><a href="annotated.html"><span>Class List</span></a></li>
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<li><a href="inherits.html"><span>Class Hierarchy</span></a></li>
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<li><a href="functions.html"><span>Class Members</span></a></li>
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<div class="header">
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<div class="summary">
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<a href="#pub-attribs">Public Attributes</a> </div>
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<div class="headertitle">
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<div class="title">fat32_fsinfo Struct Reference</div> </div>
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</div>
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<div class="contents">
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<!-- doxytag: class="fat32_fsinfo" -->
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<p>FSINFO sector for a FAT32 volume.
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<a href="structfat32__fsinfo.html#details">More...</a></p>
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<p><code>#include <SdFatStructs.h></code></p>
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<p><a href="structfat32__fsinfo-members.html">List of all members.</a></p>
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="pub-attribs"></a>
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Public Attributes</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a6c2d84388c0a38a74f7682fd602492c7">freeCount</a></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#aa8ee056cc1beb1355e15610c1beba5e3">leadSignature</a></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a539b3bb0a2ead9df417df9ac8b6b1606">nextFree</a></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#ac24bd4801a60a54e5133ed1bb71bcdaa">reserved1</a> [480]</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a9ec0e2756cd7e169268798a558df3814">reserved2</a> [12]</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#aa4a9ed657a0f58a7a1c75760c3a79fd4">structSignature</a></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structfat32__fsinfo.html#a484dd16425e4e687dc914d12309470e0">tailSignature</a> [4]</td></tr>
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</table>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<div class="textblock"><p>FSINFO sector for a FAT32 volume. </p>
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</div><hr/><h2>Member Data Documentation</h2>
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<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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</tr>
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<div class="memdoc">
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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 <= volume cluster count. </p>
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</div>
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</div>
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<a class="anchor" id="aa8ee056cc1beb1355e15610c1beba5e3"></a><!-- doxytag: member="fat32_fsinfo::leadSignature" ref="aa8ee056cc1beb1355e15610c1beba5e3" args="" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>must be 0X52, 0X52, 0X61, 0X41 </p>
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</div>
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</div>
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<a class="anchor" id="a539b3bb0a2ead9df417df9ac8b6b1606"></a><!-- doxytag: member="fat32_fsinfo::nextFree" ref="a539b3bb0a2ead9df417df9ac8b6b1606" args="" -->
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<div class="memitem">
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<table class="memname">
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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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</table>
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</div>
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<div class="memdoc">
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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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</div>
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</div>
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<a class="anchor" id="ac24bd4801a60a54e5133ed1bb71bcdaa"></a><!-- doxytag: member="fat32_fsinfo::reserved1" ref="ac24bd4801a60a54e5133ed1bb71bcdaa" args="[480]" -->
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<div class="memitem">
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<table class="memname">
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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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>must be zero </p>
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</div>
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</div>
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<a class="anchor" id="a9ec0e2756cd7e169268798a558df3814"></a><!-- doxytag: member="fat32_fsinfo::reserved2" ref="a9ec0e2756cd7e169268798a558df3814" args="[12]" -->
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<div class="memitem">
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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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>must be zero </p>
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</div>
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</div>
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<a class="anchor" id="aa4a9ed657a0f58a7a1c75760c3a79fd4"></a><!-- doxytag: member="fat32_fsinfo::structSignature" ref="aa4a9ed657a0f58a7a1c75760c3a79fd4" args="" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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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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</table>
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</div>
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<div class="memdoc">
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<p>must be 0X72, 0X72, 0X41, 0X61 </p>
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</div>
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</div>
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<a class="anchor" id="a484dd16425e4e687dc914d12309470e0"></a><!-- doxytag: member="fat32_fsinfo::tailSignature" ref="a484dd16425e4e687dc914d12309470e0" args="[4]" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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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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</table>
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</div>
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<div class="memdoc">
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<p>must be 0X00, 0X00, 0X55, 0XAA </p>
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</div>
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</div>
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<hr/>The documentation for this struct was generated from the following file:<ul>
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<li>Arduino/libraries/SdFat/<a class="el" href="_sd_fat_structs_8h.html">SdFatStructs.h</a></li>
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</ul>
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</div>
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<hr class="footer"/><address class="footer"><small>Generated on Thu Feb 7 2013 12:51:21 for SdFat by 
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.4 </small></address>
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</body>
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</html>
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