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498 lines
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498 lines
22 KiB
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<a href="class_fs_cache-members.html">List of all members</a> </div>
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<div class="headertitle">
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<div class="title">FsCache Class Reference</div> </div>
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</div><!--header-->
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<div class="contents">
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<p>Sector cache.
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<a href="class_fs_cache.html#details">More...</a></p>
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<p><code>#include <ExFatPartition.h></code></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a1533fdfef219ae4f3d6fb9299f51a1ee"><td class="memItemLeft" align="right" valign="top">uint8_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a1533fdfef219ae4f3d6fb9299f51a1ee">cacheBuffer</a> ()</td></tr>
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<tr class="separator:a1533fdfef219ae4f3d6fb9299f51a1ee"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a734ac2e9931f141c9ba9a3ef021a8691"><td class="memItemLeft" align="right" valign="top">uint8_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a734ac2e9931f141c9ba9a3ef021a8691">clear</a> ()</td></tr>
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<tr class="separator:a734ac2e9931f141c9ba9a3ef021a8691"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af50f564561a2db190280769d4641147b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#af50f564561a2db190280769d4641147b">dirty</a> ()</td></tr>
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<tr class="separator:af50f564561a2db190280769d4641147b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2483025514ecc0f69cabffcbeb052678"><td class="memItemLeft" align="right" valign="top">uint8_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a2483025514ecc0f69cabffcbeb052678">get</a> (uint32_t <a class="el" href="class_fs_cache.html#a5b90e145400de8687d9f34536b134130">sector</a>, uint8_t option)</td></tr>
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<tr class="separator:a2483025514ecc0f69cabffcbeb052678"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2e56c9443880e3db0b68cc50217e8abe"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a2e56c9443880e3db0b68cc50217e8abe">init</a> (<a class="el" href="class_sd_spi_card.html">BlockDevice</a> *blockDev)</td></tr>
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<tr class="separator:a2e56c9443880e3db0b68cc50217e8abe"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a963ea866ca2a9c4f63afd57cf287733d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a963ea866ca2a9c4f63afd57cf287733d">invalidate</a> ()</td></tr>
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<tr class="separator:a963ea866ca2a9c4f63afd57cf287733d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a22f4284aefd18f569d962d37f4a5db70"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a22f4284aefd18f569d962d37f4a5db70">isDirty</a> ()</td></tr>
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<tr class="separator:a22f4284aefd18f569d962d37f4a5db70"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5b90e145400de8687d9f34536b134130"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a5b90e145400de8687d9f34536b134130">sector</a> ()</td></tr>
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<tr class="separator:a5b90e145400de8687d9f34536b134130"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5a2c8fb432d7b7590ebb43200ca21893"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a5a2c8fb432d7b7590ebb43200ca21893">sync</a> ()</td></tr>
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<tr class="separator:a5a2c8fb432d7b7590ebb43200ca21893"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-attribs"></a>
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Static Public Attributes</h2></td></tr>
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<tr class="memitem:a1df1d63f86fcf36e1ae08a48a05ead8b"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a1df1d63f86fcf36e1ae08a48a05ead8b">CACHE_FOR_READ</a> = 0</td></tr>
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<tr class="separator:a1df1d63f86fcf36e1ae08a48a05ead8b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ade321e6538ffc77c7f36ea200decaa6f"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#ade321e6538ffc77c7f36ea200decaa6f">CACHE_FOR_WRITE</a> = <a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a></td></tr>
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<tr class="separator:ade321e6538ffc77c7f36ea200decaa6f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab694436995afb87d6e31693b47811243"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#ab694436995afb87d6e31693b47811243">CACHE_OPTION_NO_READ</a> = 2</td></tr>
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<tr class="separator:ab694436995afb87d6e31693b47811243"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae960459db6fda0de3d67768d3b59331d"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#ae960459db6fda0de3d67768d3b59331d">CACHE_RESERVE_FOR_WRITE</a> = <a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a> | <a class="el" href="class_fs_cache.html#ab694436995afb87d6e31693b47811243">CACHE_OPTION_NO_READ</a></td></tr>
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<tr class="separator:ae960459db6fda0de3d67768d3b59331d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9d83a0401f452c0572c4c4f869b698ab"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a> = 1</td></tr>
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<tr class="separator:a9d83a0401f452c0572c4c4f869b698ab"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:abb6b6426373bb591f027ac29eca4bacb"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fs_cache.html#abb6b6426373bb591f027ac29eca4bacb">CACHE_STATUS_MASK</a> = <a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a></td></tr>
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<tr class="separator:abb6b6426373bb591f027ac29eca4bacb"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Sector cache. </p>
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</div><h2 class="groupheader">Member Function Documentation</h2>
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<a class="anchor" id="a1533fdfef219ae4f3d6fb9299f51a1ee"></a>
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<td class="memname">uint8_t* FsCache::cacheBuffer </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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<dl class="section return"><dt>Returns</dt><dd>Cache sector address. </dd></dl>
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<td class="memname">uint8_t* FsCache::clear </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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<dl class="section return"><dt>Returns</dt><dd>Clear the cache and returns a pointer to the cache. </dd></dl>
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<td class="memname">void FsCache::dirty </td>
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<td>(</td>
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<td></td>
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<p>Set current sector dirty. </p>
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</div>
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<td class="memname">uint8_t * FsCache::get </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>sector</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>option</em> </td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Fill cache with sector data. </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">sector</td><td>Sector to read. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">option</td><td>mode for cached sector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Address of cached sector. </dd></dl>
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<td class="memname">void FsCache::init </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="class_sd_spi_card.html">BlockDevice</a> * </td>
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<td class="paramname"><em>blockDev</em></td><td>)</td>
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<td></td>
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<p>Initialize the cache. </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">blockDev</td><td>Block device for this partition. </td></tr>
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</dd>
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</dl>
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<td class="memname">void FsCache::invalidate </td>
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<td>(</td>
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<p>Invalidate current cache sector.</p>
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<p>Copyright (c) 20011-2017 Bill Greiman This file is part of the <a class="el" href="class_sd_fs.html" title="SD file system class for FAT16, FAT32, and exFAT volumes. ">SdFs</a> library for SD memory cards.</p>
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<p>MIT License</p>
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<p>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:</p>
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<p>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.</p>
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<p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. </p>
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<td class="memname">bool FsCache::isDirty </td>
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<td>(</td>
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<dl class="section return"><dt>Returns</dt><dd>dirty status </dd></dl>
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<td class="memname">uint32_t FsCache::sector </td>
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<dl class="section return"><dt>Returns</dt><dd>Logical sector number for cached sector. </dd></dl>
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<p>Write current sector if dirty. </p><dl class="section return"><dt>Returns</dt><dd>true for success else false. </dd></dl>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">const uint8_t FsCache::CACHE_FOR_READ = 0</td>
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<p>Cache sector for read. </p>
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<td class="memname">const uint8_t FsCache::CACHE_FOR_WRITE = <a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a></td>
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<p>Cache sector for write. </p>
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<td class="memname">const uint8_t FsCache::CACHE_OPTION_NO_READ = 2</td>
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<p>Sync existing sector but do not read new sector. </p>
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<td class="memname">const uint8_t FsCache::CACHE_RESERVE_FOR_WRITE = <a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a> | <a class="el" href="class_fs_cache.html#ab694436995afb87d6e31693b47811243">CACHE_OPTION_NO_READ</a></td>
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<p>Reserve cache sector for write - do not read from sector device. </p>
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<td class="memname">const uint8_t FsCache::CACHE_STATUS_DIRTY = 1</td>
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<p>Cached sector is dirty </p>
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<td class="memname">const uint8_t FsCache::CACHE_STATUS_MASK = <a class="el" href="class_fs_cache.html#a9d83a0401f452c0572c4c4f869b698ab">CACHE_STATUS_DIRTY</a></td>
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<p>Cache sector status bits </p>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li>ArduinoSdFs/libraries/SdFs/src/ExFatLib/<a class="el" href="_ex_fat_partition_8h.html">ExFatPartition.h</a></li>
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<li>ArduinoSdFs/libraries/SdFs/src/ExFatLib/ExFatPartition.cpp</li>
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