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teensy-sdfat

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<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pub-static-methods">Static Public Member Functions</a> &#124;
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<p>FAT16/FAT32 file with Arduino Stream.  
 <a href="class_file32.html#details">More...</a></p>

<p><code>#include &lt;FatFile.h&gt;</code></p>
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Inheritance diagram for File32:</div>
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Collaboration diagram for File32:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a0112cc39b64aac6f1ec47741397a7582"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a0112cc39b64aac6f1ec47741397a7582">available</a> ()</td></tr>
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<tr class="memitem:a651ffa37e7e586fc3c2de8cbbd500ea6"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a651ffa37e7e586fc3c2de8cbbd500ea6">available32</a> ()</td></tr>
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<tr class="memitem:a052e2c15a39b322a5307b693b8835b22"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a052e2c15a39b322a5307b693b8835b22">clearError</a> ()</td></tr>
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<tr class="memitem:aeca2a2eff91e6aa55fe1b0e3860c9a05"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aeca2a2eff91e6aa55fe1b0e3860c9a05">clearWriteError</a> ()</td></tr>
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<tr class="memitem:afd16af325e0642e4bff6430b7d8bb18b"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#afd16af325e0642e4bff6430b7d8bb18b">close</a> ()</td></tr>
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<tr class="memitem:a5ac8a604863d18840f4a93c5c788b7c8"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a5ac8a604863d18840f4a93c5c788b7c8">firstBlock</a> () const</td></tr>
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<tr class="memitem:ad0dbbd083180f44c7a3ce7124d4ce19c"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ad0dbbd083180f44c7a3ce7124d4ce19c">getError</a> ()</td></tr>
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<tr class="memitem:aba30e92a66f8e0d2f815c85662772a58"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aba30e92a66f8e0d2f815c85662772a58">getSFN</a> (char *<a class="el" href="class_stream_file.html#a8792c863080576eb65ce6cacbe1dd931">name</a>)</td></tr>
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<tr class="memitem:abfd02c5d26f7d4f8739a8610116a6660"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#abfd02c5d26f7d4f8739a8610116a6660">isSubDir</a> () const</td></tr>
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<tr class="memitem:a48087bdeb6b94fc27e0f74c3d90af5a9"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a48087bdeb6b94fc27e0f74c3d90af5a9">isSystem</a> () const</td></tr>
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<tr class="memitem:aa484d5b2b147c5f3fe0e26b6eaf11ffc"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aa484d5b2b147c5f3fe0e26b6eaf11ffc">isWritable</a> () const</td></tr>
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<tr class="memitem:a60ab9d16bcc778150a364c26de467de1"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a60ab9d16bcc778150a364c26de467de1">ls</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr, uint8_t flags=0, uint8_t indent=0)</td></tr>
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<tr class="memitem:a6a11f3307da6232b5f2d11812832d93a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a6a11f3307da6232b5f2d11812832d93a">ls</a> (uint8_t flags=0)</td></tr>
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<tr class="memitem:abab5b9f72cc796388dd4eed01d13d90d"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#abab5b9f72cc796388dd4eed01d13d90d">mkdir</a> (<a class="el" href="class_fat_file.html">FatFile</a> *dir, const char *path, bool pFlag=true)</td></tr>
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<tr class="memitem:a8792c863080576eb65ce6cacbe1dd931"><td class="memItemLeft" align="right" valign="top">const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a8792c863080576eb65ce6cacbe1dd931">name</a> () const</td></tr>
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<tr class="memitem:afd3e4d5a76b6751ca796fc57f4dd2be4"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#afd3e4d5a76b6751ca796fc57f4dd2be4">open</a> (const char *path, oflag_t oflag=0X00)</td></tr>
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<tr class="memitem:a58d6ea245f1bc3ae7a6df311cd25052f"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a58d6ea245f1bc3ae7a6df311cd25052f">open</a> (<a class="el" href="class_fat_file.html">FatFile</a> *dirFile, const char *path, oflag_t oflag)</td></tr>
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<tr class="memitem:ab44920bb9cd5414b8e69c9dc4343394a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ab44920bb9cd5414b8e69c9dc4343394a">open</a> (<a class="el" href="class_fat_file.html">FatFile</a> *dirFile, uint16_t index, oflag_t oflag)</td></tr>
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<tr class="memitem:af49a42dc64cd954debb271eae5639059"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#af49a42dc64cd954debb271eae5639059">open</a> (<a class="el" href="class_fat_volume.html">FatVolume</a> *vol, const char *path, oflag_t oflag)</td></tr>
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<tr class="memitem:a7f98b908a686574efbd7e1d20121ef9a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a7f98b908a686574efbd7e1d20121ef9a">openNext</a> (<a class="el" href="class_fat_file.html">FatFile</a> *dirFile, oflag_t oflag=0X00)</td></tr>
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<tr class="memitem:a571434707124ee554d659ec82e2ef750"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_file32.html">File32</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_file32.html#a571434707124ee554d659ec82e2ef750">openNextFile</a> (oflag_t oflag=0X00)</td></tr>
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<tr class="memitem:a7e0c0548fed3a69e7284b91b694439d4"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a7e0c0548fed3a69e7284b91b694439d4">openRoot</a> (<a class="el" href="class_fat_volume.html">FatVolume</a> *vol)</td></tr>
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<tr class="memitem:acd141c43d03cf790b3b9806f3b059e77"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#acd141c43d03cf790b3b9806f3b059e77">operator bool</a> ()</td></tr>
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<tr class="memitem:af0da96e502485133ca0cff27fa130082"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#af0da96e502485133ca0cff27fa130082">peek</a> ()</td></tr>
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<tr class="memitem:a18a04d1e68a0c1e3e38e5712cd9bbc03"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a18a04d1e68a0c1e3e38e5712cd9bbc03">position</a> ()</td></tr>
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<tr class="memitem:aeeb13b9de68bf9097c863c41d655ee83"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aeeb13b9de68bf9097c863c41d655ee83">preAllocate</a> (uint32_t length)</td></tr>
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<tr class="memitem:a22be4c339d0bfa331f75415b74dd4f37"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a22be4c339d0bfa331f75415b74dd4f37">printAccessDate</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:a19b3196bb1f6a68a2447e53b09369aef"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a19b3196bb1f6a68a2447e53b09369aef">printAccessDateTime</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:ab22396a285e27b53501a0047ddd97f59"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ab22396a285e27b53501a0047ddd97f59">printCreateDateTime</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:aa4a61a0cca1813d2ad0f6fe99cc4e41d"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aa4a61a0cca1813d2ad0f6fe99cc4e41d">printField</a> (double value, char term, uint8_t prec=2)</td></tr>
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<tr class="memitem:a90ccef676afd62bbe7c773dd863a56e0"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a90ccef676afd62bbe7c773dd863a56e0">printField</a> (float value, char term, uint8_t prec=2)</td></tr>
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<tr class="memitem:a8f906be79086f38943cb0911310d67bf"><td class="memTemplParams" colspan="2">template&lt;typename Type &gt; </td></tr>
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<tr class="memitem:a12a5d2de2737c201aa39ca1bd2ab9c47"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a12a5d2de2737c201aa39ca1bd2ab9c47">printFileSize</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:a43c8a1cabcae673e43c590f5db44c65a"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a43c8a1cabcae673e43c590f5db44c65a">printModifyDateTime</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:ad1cbc3aeb0f5193b7a26595966da9621"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ad1cbc3aeb0f5193b7a26595966da9621">printName</a> ()</td></tr>
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<tr class="memitem:afe18a787fb8640e2d2483370c770f82f"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#afe18a787fb8640e2d2483370c770f82f">printName</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:a791cd7aade71f609aab62ec018aea3c0"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a791cd7aade71f609aab62ec018aea3c0">printSFN</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr)</td></tr>
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<tr class="memitem:a249a5d428f303e2a8e7c3ae476e74829"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a249a5d428f303e2a8e7c3ae476e74829">read</a> ()</td></tr>
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<tr class="memitem:aba893af8107a18017482d2311b066187"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aba893af8107a18017482d2311b066187">read</a> (void *buf, size_t count)</td></tr>
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<tr class="memitem:a29502cd34ef186763d2196daef27df1f"><td class="memItemLeft" align="right" valign="top">int8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a29502cd34ef186763d2196daef27df1f">readDir</a> (DirFat_t *dir)</td></tr>
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<tr class="memitem:ac837a537fbcca14c7aa390c5fc9f4e7c"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ac837a537fbcca14c7aa390c5fc9f4e7c">remove</a> ()</td></tr>
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<tr class="memitem:a75d3276f0b02b03e863afafe5731fedb"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a75d3276f0b02b03e863afafe5731fedb">remove</a> (const char *path)</td></tr>
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<tr class="memitem:a4cebcac13c1f4c9de7a055ae73133599"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a4cebcac13c1f4c9de7a055ae73133599">rename</a> (const char *newPath)</td></tr>
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<tr class="memitem:a4b42f2454ff462555c07ea094a92a1e0"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a4b42f2454ff462555c07ea094a92a1e0">rename</a> (<a class="el" href="class_fat_file.html">FatFile</a> *dirFile, const char *newPath)</td></tr>
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<tr class="memitem:a5aac6e0b3cb08fc8b8668e916a8b0ca5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a5aac6e0b3cb08fc8b8668e916a8b0ca5">rewind</a> ()</td></tr>
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<tr class="memitem:a91e8cfbde27d6879b4f51d2ceb2a9f06"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a91e8cfbde27d6879b4f51d2ceb2a9f06">rewindDirectory</a> ()</td></tr>
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<tr class="memitem:a9515bac181d33e7f0125e88fa2ccd283"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a9515bac181d33e7f0125e88fa2ccd283">rmdir</a> ()</td></tr>
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<tr class="memitem:ac780a80526f86d3def701ecdc99d8bfe"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ac780a80526f86d3def701ecdc99d8bfe">rmRfStar</a> ()</td></tr>
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<tr class="memitem:a773ee6f661fc689a5187f51cb5498086"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a773ee6f661fc689a5187f51cb5498086">seek</a> (uint32_t pos)</td></tr>
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<tr class="memitem:a5812037ea30777cc350698ad26f2c73f"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a5812037ea30777cc350698ad26f2c73f">seekCur</a> (int32_t offset)</td></tr>
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<tr class="memitem:a84f677f4e75ef6fa2eb632f4cdf6b486"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a84f677f4e75ef6fa2eb632f4cdf6b486">seekEnd</a> (int32_t offset=0)</td></tr>
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<tr class="memitem:ab067190d25733ed7e697d9890f61fd7a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#ab067190d25733ed7e697d9890f61fd7a">seekSet</a> (uint32_t pos)</td></tr>
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<tr class="memitem:a5813d451e7f7ba57a04d177caffc5a9f"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a5813d451e7f7ba57a04d177caffc5a9f">size</a> ()</td></tr>
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<tr class="memitem:a67f3dc4896c542d695e11aac927f585e"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a67f3dc4896c542d695e11aac927f585e">sync</a> ()</td></tr>
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<tr class="memitem:a56dabdf73833b7e961c4530eb8e16d23"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a56dabdf73833b7e961c4530eb8e16d23">timestamp</a> (uint8_t flags, uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute, uint8_t second)</td></tr>
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<tr class="memitem:a7dda881dac19ea2aa9b2e85a229a98d7"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a7dda881dac19ea2aa9b2e85a229a98d7">truncate</a> ()</td></tr>
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<tr class="memitem:aa6e663098a578635d37d92e82d18d616"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aa6e663098a578635d37d92e82d18d616">truncate</a> (uint32_t length)</td></tr>
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<tr class="memitem:a081dd810835f1ebf8c23ffe92706b485"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a081dd810835f1ebf8c23ffe92706b485">write</a> (const char *str)</td></tr>
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<tr class="memitem:a0ace3aaaf6d0fb673a43059c0664fab6"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_file.html#a0ace3aaaf6d0fb673a43059c0664fab6">write</a> (const uint8_t *buffer, size_t <a class="el" href="class_stream_file.html#a5813d451e7f7ba57a04d177caffc5a9f">size</a>)</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a94df8090f16e9666cdc53ca20f6aff90"><td class="memItemLeft" align="right" valign="top">static bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a94df8090f16e9666cdc53ca20f6aff90">legal83Char</a> (uint8_t c)</td></tr>
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<tr class="memitem:aabcd863883bfcfb37b63dbd6021f7eb8"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#aabcd863883bfcfb37b63dbd6021f7eb8">printFatDate</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr, uint16_t fatDate)</td></tr>
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<tr class="memitem:a7f84d953190ea94710dad9ebb897b957"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_file.html#a7f84d953190ea94710dad9ebb897b957">printFatTime</a> (<a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr, uint16_t fatTime)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>FAT16/FAT32 file with Arduino Stream. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a0112cc39b64aac6f1ec47741397a7582">&#9670;&nbsp;</a></span>available()</h2>

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          <td class="memname">int <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::available </td>
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<dl class="section return"><dt>Returns</dt><dd>number of bytes available from the current position to EOF or INT_MAX if more than INT_MAX bytes are available. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a651ffa37e7e586fc3c2de8cbbd500ea6">&#9670;&nbsp;</a></span>available32()</h2>

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<dl class="section return"><dt>Returns</dt><dd>The number of bytes available from the current position to EOF for normal files. Zero is returned for directory files. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a052e2c15a39b322a5307b693b8835b22">&#9670;&nbsp;</a></span>clearError()</h2>

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          <td class="memname">void FatFile::clearError </td>
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<p>Clear all error bits. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#aeca2a2eff91e6aa55fe1b0e3860c9a05">&#9670;&nbsp;</a></span>clearWriteError()</h2>

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          <td class="memname">void FatFile::clearWriteError </td>
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<p>Set writeError to zero </p>

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<h2 class="memtitle"><span class="permalink"><a href="#afd16af325e0642e4bff6430b7d8bb18b">&#9670;&nbsp;</a></span>close()</h2>

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<p>Close a file and force cached data and directory information to be written to the storage device.</p>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a12b3c5a763416ca62c70e3db74033cd0">&#9670;&nbsp;</a></span>contiguousRange()</h2>

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          <td class="memname">bool FatFile::contiguousRange </td>
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          <td class="paramtype">uint32_t *&#160;</td>
          <td class="paramname"><em>bgnSector</em>, </td>
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          <td class="paramtype">uint32_t *&#160;</td>
          <td class="paramname"><em>endSector</em>&#160;</td>
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<p>Check for contiguous file and return its raw sector range.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[out]</td><td class="paramname">bgnSector</td><td>the first sector address for the file. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">endSector</td><td>the last sector address for the file.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a0853fbd44aee2798d14d8e3aed78f8bf">&#9670;&nbsp;</a></span>createContiguous() <span class="overload">[1/2]</span></h2>

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          <td class="memname">bool FatFile::createContiguous </td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em>, </td>
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          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>size</em>&#160;</td>
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<p>Create and open a new contiguous file of a specified size.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a validfile name. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>The desired file size.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a0afc2a1cffa238d1cb2049bfa2d8d199">&#9670;&nbsp;</a></span>createContiguous() <span class="overload">[2/2]</span></h2>

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          <td>(</td>
          <td class="paramtype"><a class="el" href="class_fat_file.html">FatFile</a> *&#160;</td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em>, </td>
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          <td class="paramtype">uint32_t&#160;</td>
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<p>Create and open a new contiguous file of a specified size.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">dirFile</td><td>The directory where the file will be created. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a validfile name. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>The desired file size.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a526f3dd56ce205690e45ffc86ef6f891">&#9670;&nbsp;</a></span>curCluster()</h2>

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<dl class="section return"><dt>Returns</dt><dd>The current cluster number for a file or directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a97e0620949f97e9b9c91ed1094d728aa">&#9670;&nbsp;</a></span>curPosition()</h2>

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<dl class="section return"><dt>Returns</dt><dd>The current position for a file or directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a2f4e9ab3056125b07f15d14ca26d5346">&#9670;&nbsp;</a></span>dirEntry()</h2>

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<p>Return a file's directory entry.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[out]</td><td class="paramname">dir</td><td>Location for return of the file's directory entry.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ae5ec24d4a94d3780384d3f2b731c7eb9">&#9670;&nbsp;</a></span>dirIndex()</h2>

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<dl class="section return"><dt>Returns</dt><dd>Directory entry index. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ae2ed15f05c9ccbce355e7a8d3ce8382d">&#9670;&nbsp;</a></span>dirSize()</h2>

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<dl class="section return"><dt>Returns</dt><dd>The number of bytes allocated to a directory or zero if an error occurs. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a4f01d27954ae49aeb6888ac7302f55d9">&#9670;&nbsp;</a></span>dmpFile()</h2>

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          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>pos</em>, </td>
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          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>n</em>&#160;</td>
        </tr>
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          <td>)</td>
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        </tr>
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<p>Dump file in Hex </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for list. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">pos</td><td>Start position in file. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>number of locations to dump. </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a50242f98dea0d4488ce4039a279f2a57">&#9670;&nbsp;</a></span>exists()</h2>

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          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em></td><td>)</td>
          <td></td>
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<p>Test for the existence of a file in a directory</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>Path of the file to be tested for.</td></tr>
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  </dd>
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<p>The calling instance must be an open directory file.</p>
<p>dirFile.exists("TOFIND.TXT") searches for "TOFIND.TXT" in the directory dirFile.</p>
<dl class="section return"><dt>Returns</dt><dd>True if the file exists. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a33e0b0a8a342047f29ab8e8aae9cae14">&#9670;&nbsp;</a></span>fgetpos()</h2>

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          <td class="memname">void FatFile::fgetpos </td>
          <td>(</td>
          <td class="paramtype">fspos_t *&#160;</td>
          <td class="paramname"><em>pos</em></td><td>)</td>
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<p>get position for streams </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">pos</td><td>struct to receive position </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a9e05a51767f7c8f70c6f337eecbdca03">&#9670;&nbsp;</a></span>fgets()</h2>

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          <td class="memname">int FatFile::fgets </td>
          <td>(</td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>str</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>num</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>delim</em> = <code><a class="el" href="_stdio_stream_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></code>&#160;</td>
        </tr>
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          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>Get a string from a file.</p>
<p><a class="el" href="class_fat_file.html#a9e05a51767f7c8f70c6f337eecbdca03">fgets()</a> reads bytes from a file into the array pointed to by <em>str</em>, until <em>num</em> - 1 bytes are read, or a delimiter is read and transferred to <em>str</em>, or end-of-file is encountered. The string is then terminated with a null byte.</p>
<p><a class="el" href="class_fat_file.html#a9e05a51767f7c8f70c6f337eecbdca03">fgets()</a> deletes CR, '\r', from the string. This insures only a '\n' terminates the string for Windows text files which use CRLF for newline.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">str</td><td>Pointer to the array where the string is stored. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">num</td><td>Maximum number of characters to be read (including the final null byte). Usually the length of the array <em>str</em> is used. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">delim</td><td>Optional set of delimiters. The default is "\n".</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>For success <a class="el" href="class_fat_file.html#a9e05a51767f7c8f70c6f337eecbdca03">fgets()</a> returns the length of the string in <em>str</em>. If no data is read, <a class="el" href="class_fat_file.html#a9e05a51767f7c8f70c6f337eecbdca03">fgets()</a> returns zero for EOF or -1 if an error occurred. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a874940574b9c99e763526465adf8dc28">&#9670;&nbsp;</a></span>fileSize()</h2>

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<dl class="section return"><dt>Returns</dt><dd>The total number of bytes in a file. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a5ac8a604863d18840f4a93c5c788b7c8">&#9670;&nbsp;</a></span>firstBlock()</h2>

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          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>first sector of file or zero for empty file. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#af3108df387f30ca3d367dd390a04daaa">&#9670;&nbsp;</a></span>firstSector()</h2>

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          <td class="paramname"></td><td>)</td>
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<dl class="section return"><dt>Returns</dt><dd>first sector of file or zero for empty file. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a32f813e659414892a58aa5157fe14f82">&#9670;&nbsp;</a></span>flush()</h2>

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          <td class="memname">void <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::flush </td>
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<p>Ensure that any bytes written to the file are saved to the SD card. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac042c43d41ecfff4e101b88f3f82086e">&#9670;&nbsp;</a></span>fsetpos()</h2>

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          <td class="memname">void FatFile::fsetpos </td>
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          <td class="paramtype">const fspos_t *&#160;</td>
          <td class="paramname"><em>pos</em></td><td>)</td>
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<p>set position for streams </p><dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pos</td><td>struct with value for new position </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ad0dbbd083180f44c7a3ce7124d4ce19c">&#9670;&nbsp;</a></span>getError()</h2>

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<dl class="section return"><dt>Returns</dt><dd>All error bits. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aafa565e286440aab612cdb430fc01da5">&#9670;&nbsp;</a></span>getName()</h2>

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          <td>(</td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>name</em>, </td>
        </tr>
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          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>size</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>Get a file's name followed by a zero byte.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">name</td><td>An array of characters for the file's name. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>The size of the array in bytes. The array must be at least 13 bytes long. The file's name will be truncated if the file's name is too long. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aba30e92a66f8e0d2f815c85662772a58">&#9670;&nbsp;</a></span>getSFN()</h2>

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          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>name</em></td><td>)</td>
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<p>Get a file's Short File Name followed by a zero byte.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[out]</td><td class="paramname">name</td><td>An array of characters for the file's name. The array must be at least 13 bytes long. </td></tr>
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  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a8062c0d3a118e8d77d0310418703d5f5">&#9670;&nbsp;</a></span>getWriteError()</h2>

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<dl class="section return"><dt>Returns</dt><dd>value of writeError </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a16478eafdb731e867fb627d19091c3ce">&#9670;&nbsp;</a></span>isContiguous()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if the file is contiguous. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a933360b20b496421b2bd9ee7a95563a6">&#9670;&nbsp;</a></span>isDir()</h2>

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          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is a directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a586ad44055eca4c1b2b457299b829d44">&#9670;&nbsp;</a></span>isDirectory()</h2>

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<p>This function reports if the current file is a directory or not. </p><dl class="section return"><dt>Returns</dt><dd>true if the file is a directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#acc5a87da1a5c8cb9758bfeaa7ae47b57">&#9670;&nbsp;</a></span>isFile()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is a normal file. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ae216b4a2bc44a9cfb88478fa051a1fd8">&#9670;&nbsp;</a></span>isHidden()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is a hidden file. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#af8f456ab790e818bfdd225cf6ffd40f3">&#9670;&nbsp;</a></span>isLFN()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>true if this file has a Long File Name. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a8b8a2850c086d3ce79bee64a23fbf7a6">&#9670;&nbsp;</a></span>isOpen()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is an open file/directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ae60b4cedb69c88ac641813d5edfa6b4a">&#9670;&nbsp;</a></span>isReadable()</h2>

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          <td class="memname">bool FatFile::isReadable </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True file is writable. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#abaf639ec8f86f34aeb7e6b3615526f0b">&#9670;&nbsp;</a></span>isReadOnly()</h2>

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<dl class="section return"><dt>Returns</dt><dd>True if file is read-only </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a03421a0c28649332f55e6ca06d3aeedb">&#9670;&nbsp;</a></span>isRoot()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is the root directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a8fda8004720ec4cc55710869dbb52e35">&#9670;&nbsp;</a></span>isRoot32()</h2>

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          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is the FAT32 root directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a0cc65089f7ce6c1ff92edbf0bff59dee">&#9670;&nbsp;</a></span>isRootFixed()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is the FAT12 of FAT16 root directory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#abfd02c5d26f7d4f8739a8610116a6660">&#9670;&nbsp;</a></span>isSubDir()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is a subdirectory. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a48087bdeb6b94fc27e0f74c3d90af5a9">&#9670;&nbsp;</a></span>isSystem()</h2>

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          <td class="paramname"></td><td>)</td>
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<dl class="section return"><dt>Returns</dt><dd>True if this is a system file. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aa484d5b2b147c5f3fe0e26b6eaf11ffc">&#9670;&nbsp;</a></span>isWritable()</h2>

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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>True file is writable. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a94df8090f16e9666cdc53ca20f6aff90">&#9670;&nbsp;</a></span>legal83Char()</h2>

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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>c</em></td><td>)</td>
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<p>Check for a legal 8.3 character. </p><dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">c</td><td>Character to be checked. </td></tr>
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  </dd>
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<dl class="section return"><dt>Returns</dt><dd>true for a legal 8.3 character. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a60ab9d16bcc778150a364c26de467de1">&#9670;&nbsp;</a></span>ls() <span class="overload">[1/2]</span></h2>

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          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>flags</em> = <code>0</code>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>indent</em> = <code>0</code>&#160;</td>
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<p>List directory contents.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for list.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">flags</td><td>The inclusive OR of</td></tr>
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<p>LS_DATE - Print file modification date</p>
<p>LS_SIZE - Print file size.</p>
<p>LS_R - Recursive list of subdirectories.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">indent</td><td>Amount of space before file name. Used for recursive list to indicate subdirectory level.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a6a11f3307da6232b5f2d11812832d93a">&#9670;&nbsp;</a></span>ls() <span class="overload">[2/2]</span></h2>

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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>flags</em> = <code>0</code></td><td>)</td>
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<p>List directory contents.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">flags</td><td>The inclusive OR of</td></tr>
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<p>LS_DATE - Print file modification date</p>
<p>LS_SIZE - Print file size.</p>
<p>LS_R - Recursive list of subdirectories.</p>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#abab5b9f72cc796388dd4eed01d13d90d">&#9670;&nbsp;</a></span>mkdir()</h2>

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          <td>(</td>
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          <td class="paramname"><em>dir</em>, </td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em>, </td>
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          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>pFlag</em> = <code>true</code>&#160;</td>
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<p>Make a new directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">dir</td><td>An open <a class="el" href="class_fat_file.html" title="Basic file class.">FatFile</a> instance for the directory that will contain the new directory.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid name for the new directory.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">pFlag</td><td>Create missing parent directories if true.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a8792c863080576eb65ce6cacbe1dd931">&#9670;&nbsp;</a></span>name()</h2>

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          <td class="memname">const char* <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::name </td>
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<p>No longer implemented due to Long File Names.</p>
<p>Use <a class="el" href="class_fat_file.html#aafa565e286440aab612cdb430fc01da5">getName(char* name, size_t size)</a>. </p><dl class="section return"><dt>Returns</dt><dd>a pointer to replacement suggestion. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#afd3e4d5a76b6751ca796fc57f4dd2be4">&#9670;&nbsp;</a></span>open() <span class="overload">[1/4]</span></h2>

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          <td class="paramname"><em>oflag</em> = <code>0X00</code>&#160;</td>
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<p>Open a file in the current working volume.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid name for a file to be opened.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">oflag</td><td>bitwise-inclusive OR of open flags. See see <a class="el" href="class_fat_file.html#a58d6ea245f1bc3ae7a6df311cd25052f">FatFile::open(FatFile*, const char*, uint8_t)</a>.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a58d6ea245f1bc3ae7a6df311cd25052f">&#9670;&nbsp;</a></span>open() <span class="overload">[2/4]</span></h2>

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          <td>(</td>
          <td class="paramtype"><a class="el" href="class_fat_file.html">FatFile</a> *&#160;</td>
          <td class="paramname"><em>dirFile</em>, </td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">oflag_t&#160;</td>
          <td class="paramname"><em>oflag</em>&#160;</td>
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          <td>)</td>
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<p>Open a file or directory by name.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">dirFile</td><td>An open <a class="el" href="class_fat_file.html" title="Basic file class.">FatFile</a> instance for the directory containing the file to be opened.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid name for a file to be opened.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">oflag</td><td>Values for <em>oflag</em> are constructed by a bitwise-inclusive OR of flags from the following list. Only one of O_RDONLY, O_READ, O_WRONLY, O_WRITE, or O_RDWR is allowed.</td></tr>
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<p>O_RDONLY - Open for reading.</p>
<p>O_READ - Same as O_RDONLY.</p>
<p>O_WRONLY - Open for writing.</p>
<p>O_WRITE - Same as O_WRONLY.</p>
<p>O_RDWR - Open for reading and writing.</p>
<p>O_APPEND - If set, the file offset shall be set to the end of the file prior to each write.</p>
<p>O_AT_END - Set the initial position at the end of the file.</p>
<p>O_CREAT - If the file exists, this flag has no effect except as noted under O_EXCL below. Otherwise, the file shall be created</p>
<p>O_EXCL - If O_CREAT and O_EXCL are set, <a class="el" href="class_fat_file.html#af49a42dc64cd954debb271eae5639059">open()</a> shall fail if the file exists.</p>
<p>O_TRUNC - If the file exists and is a regular file, and the file is successfully opened and is not read only, its length shall be truncated to 0.</p>
<p>WARNING: A given file must not be opened by more than one <a class="el" href="class_fat_file.html" title="Basic file class.">FatFile</a> object or file corruption may occur.</p>
<dl class="section note"><dt>Note</dt><dd>Directory files must be opened read only. Write and truncation is not allowed for directory files.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ab44920bb9cd5414b8e69c9dc4343394a">&#9670;&nbsp;</a></span>open() <span class="overload">[3/4]</span></h2>

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          <td>(</td>
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          <td class="paramname"><em>dirFile</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint16_t&#160;</td>
          <td class="paramname"><em>index</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">oflag_t&#160;</td>
          <td class="paramname"><em>oflag</em>&#160;</td>
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          <td>)</td>
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<p>Open a file by index.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">dirFile</td><td>An open <a class="el" href="class_fat_file.html" title="Basic file class.">FatFile</a> instance for the directory.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">index</td><td>The <em>index</em> of the directory entry for the file to be opened. The value for <em>index</em> is (directory file position)/32.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">oflag</td><td>bitwise-inclusive OR of open flags. See see <a class="el" href="class_fat_file.html#a58d6ea245f1bc3ae7a6df311cd25052f">FatFile::open(FatFile*, const char*, uint8_t)</a>.</td></tr>
  </table>
  </dd>
</dl>
<p>See <a class="el" href="class_fat_file.html#af49a42dc64cd954debb271eae5639059">open()</a> by path for definition of flags. </p><dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<a id="af49a42dc64cd954debb271eae5639059"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af49a42dc64cd954debb271eae5639059">&#9670;&nbsp;</a></span>open() <span class="overload">[4/4]</span></h2>

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          <td class="memname">bool FatFile::open </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_fat_volume.html">FatVolume</a> *&#160;</td>
          <td class="paramname"><em>vol</em>, </td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em>, </td>
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          <td class="paramtype">oflag_t&#160;</td>
          <td class="paramname"><em>oflag</em>&#160;</td>
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          <td>)</td>
          <td></td><td></td>
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<p>Open a file in the volume root directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">vol</td><td>Volume where the file is located.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>with a valid name for a file to be opened.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">oflag</td><td>bitwise-inclusive OR of open flags. See see <a class="el" href="class_fat_file.html#a58d6ea245f1bc3ae7a6df311cd25052f">FatFile::open(FatFile*, const char*, uint8_t)</a>.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a7f98b908a686574efbd7e1d20121ef9a">&#9670;&nbsp;</a></span>openNext()</h2>

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          <td class="memname">bool FatFile::openNext </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_fat_file.html">FatFile</a> *&#160;</td>
          <td class="paramname"><em>dirFile</em>, </td>
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          <td></td>
          <td class="paramtype">oflag_t&#160;</td>
          <td class="paramname"><em>oflag</em> = <code>0X00</code>&#160;</td>
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          <td>)</td>
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<p>Open the next file or subdirectory in a directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">dirFile</td><td>An open <a class="el" href="class_fat_file.html" title="Basic file class.">FatFile</a> instance for the directory containing the file to be opened.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">oflag</td><td>bitwise-inclusive OR of open flags. See see <a class="el" href="class_fat_file.html#a58d6ea245f1bc3ae7a6df311cd25052f">FatFile::open(FatFile*, const char*, uint8_t)</a>.</td></tr>
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  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a571434707124ee554d659ec82e2ef750">&#9670;&nbsp;</a></span>openNextFile()</h2>

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          <td class="memname"><a class="el" href="class_file32.html">File32</a> File32::openNextFile </td>
          <td>(</td>
          <td class="paramtype">oflag_t&#160;</td>
          <td class="paramname"><em>oflag</em> = <code>0X00</code></td><td>)</td>
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<p>Opens the next file or folder in a directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">oflag</td><td>open flags. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a FatStream object. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a7e0c0548fed3a69e7284b91b694439d4">&#9670;&nbsp;</a></span>openRoot()</h2>

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          <td class="memname">bool FatFile::openRoot </td>
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          <td class="paramtype"><a class="el" href="class_fat_volume.html">FatVolume</a> *&#160;</td>
          <td class="paramname"><em>vol</em></td><td>)</td>
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<p>Open a volume's root directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">vol</td><td>The FAT volume containing the root directory to be opened.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#acd141c43d03cf790b3b9806f3b059e77">&#9670;&nbsp;</a></span>operator bool()</h2>

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<p>The parenthesis operator.</p>
<dl class="section return"><dt>Returns</dt><dd>true if a file is open. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#af0da96e502485133ca0cff27fa130082">&#9670;&nbsp;</a></span>peek()</h2>

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          <td class="memname">int <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::peek </td>
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<p>Return the next available byte without consuming it.</p>
<dl class="section return"><dt>Returns</dt><dd>The byte if no error and not at eof else -1; </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a18a04d1e68a0c1e3e38e5712cd9bbc03">&#9670;&nbsp;</a></span>position()</h2>

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          <td class="memname">uint32_t  <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::position </td>
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<dl class="section return"><dt>Returns</dt><dd>the current file position. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aeeb13b9de68bf9097c863c41d655ee83">&#9670;&nbsp;</a></span>preAllocate()</h2>

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          <td class="memname">bool FatFile::preAllocate </td>
          <td>(</td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>length</em></td><td>)</td>
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<p>Allocate contiguous clusters to an empty file.</p>
<p>The file must be empty with no clusters allocated.</p>
<p>The file will contain uninitialized data.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">length</td><td>size of the file in bytes. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a22be4c339d0bfa331f75415b74dd4f37">&#9670;&nbsp;</a></span>printAccessDate()</h2>

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          <td class="memname">size_t FatFile::printAccessDate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's access date</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of characters printed. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a19b3196bb1f6a68a2447e53b09369aef">&#9670;&nbsp;</a></span>printAccessDateTime()</h2>

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          <td class="memname">size_t FatFile::printAccessDateTime </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's access date</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of characters printed. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ab22396a285e27b53501a0047ddd97f59">&#9670;&nbsp;</a></span>printCreateDateTime()</h2>

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          <td class="memname">size_t FatFile::printCreateDateTime </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's creation date and time</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of bytes printed. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aabcd863883bfcfb37b63dbd6021f7eb8">&#9670;&nbsp;</a></span>printFatDate()</h2>

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          <td class="memname">static void FatFile::printFatDate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint16_t&#160;</td>
          <td class="paramname"><em>fatDate</em>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Print a directory date field.</p>
<p>Format is yyyy-mm-dd.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">fatDate</td><td>The date field from a directory entry. </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a7f84d953190ea94710dad9ebb897b957">&#9670;&nbsp;</a></span>printFatTime()</h2>

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          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
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          <td class="paramtype">uint16_t&#160;</td>
          <td class="paramname"><em>fatTime</em>&#160;</td>
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<p>Print a directory time field.</p>
<p>Format is hh:mm:ss.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">fatTime</td><td>The time field from a directory entry. </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aa4a61a0cca1813d2ad0f6fe99cc4e41d">&#9670;&nbsp;</a></span>printField() <span class="overload">[1/3]</span></h2>

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          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>value</em>, </td>
        </tr>
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          <td class="paramkey"></td>
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          <td class="paramtype">char&#160;</td>
          <td class="paramname"><em>term</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>prec</em> = <code>2</code>&#160;</td>
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<p>Print a number followed by a field terminator. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>The number to be printed. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">term</td><td>The field terminator. Use '\n' for CR LF. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">prec</td><td>Number of digits after decimal point. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of bytes written or -1 if an error occurs. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a90ccef676afd62bbe7c773dd863a56e0">&#9670;&nbsp;</a></span>printField() <span class="overload">[2/3]</span></h2>

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          <td>(</td>
          <td class="paramtype">float&#160;</td>
          <td class="paramname"><em>value</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">char&#160;</td>
          <td class="paramname"><em>term</em>, </td>
        </tr>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>prec</em> = <code>2</code>&#160;</td>
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          <td>)</td>
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<p>Print a number followed by a field terminator. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>The number to be printed. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">term</td><td>The field terminator. Use '\n' for CR LF. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">prec</td><td>Number of digits after decimal point. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of bytes written or -1 if an error occurs. </dd></dl>

</div>
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<a id="a8f906be79086f38943cb0911310d67bf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8f906be79086f38943cb0911310d67bf">&#9670;&nbsp;</a></span>printField() <span class="overload">[3/3]</span></h2>

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          <td>(</td>
          <td class="paramtype">Type&#160;</td>
          <td class="paramname"><em>value</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
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          <td class="paramtype">char&#160;</td>
          <td class="paramname"><em>term</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Print a number followed by a field terminator. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>The number to be printed. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">term</td><td>The field terminator. Use '\n' for CR LF. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of bytes written or -1 if an error occurs. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a12a5d2de2737c201aa39ca1bd2ab9c47">&#9670;&nbsp;</a></span>printFileSize()</h2>

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          <td class="memname">size_t FatFile::printFileSize </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's size.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of characters printed is returned for success and zero is returned for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a43c8a1cabcae673e43c590f5db44c65a">&#9670;&nbsp;</a></span>printModifyDateTime()</h2>

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          <td class="memname">size_t FatFile::printModifyDateTime </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's modify date and time</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of characters printed. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ad1cbc3aeb0f5193b7a26595966da9621">&#9670;&nbsp;</a></span>printName() <span class="overload">[1/2]</span></h2>

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<p>Print a file's name.</p>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#afe18a787fb8640e2d2483370c770f82f">&#9670;&nbsp;</a></span>printName() <span class="overload">[2/2]</span></h2>

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          <td>(</td>
          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's name</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a791cd7aade71f609aab62ec018aea3c0">&#9670;&nbsp;</a></span>printSFN()</h2>

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          <td class="paramtype"><a class="el" href="_sys_call_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
          <td class="paramname"><em>pr</em></td><td>)</td>
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<p>Print a file's Short File Name.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for output.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of characters printed is returned for success and zero is returned for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a249a5d428f303e2a8e7c3ae476e74829">&#9670;&nbsp;</a></span>read() <span class="overload">[1/2]</span></h2>

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<p>Read the next byte from a file.</p>
<dl class="section return"><dt>Returns</dt><dd>For success return the next byte in the file as an int. If an error occurs or end of file is reached return -1. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aba893af8107a18017482d2311b066187">&#9670;&nbsp;</a></span>read() <span class="overload">[2/2]</span></h2>

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          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>count</em>&#160;</td>
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<p>Read data from a file starting at the current position.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">buf</td><td>Pointer to the location that will receive the data.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">count</td><td>Maximum number of bytes to read.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>For success <a class="el" href="class_stream_file.html#a249a5d428f303e2a8e7c3ae476e74829">read()</a> returns the number of bytes read. A value less than <em>nbyte</em>, including zero, will be returned if end of file is reached. If an error occurs, <a class="el" href="class_stream_file.html#a249a5d428f303e2a8e7c3ae476e74829">read()</a> returns -1. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a29502cd34ef186763d2196daef27df1f">&#9670;&nbsp;</a></span>readDir()</h2>

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          <td class="memname">int8_t FatFile::readDir </td>
          <td>(</td>
          <td class="paramtype">DirFat_t *&#160;</td>
          <td class="paramname"><em>dir</em></td><td>)</td>
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<p>Read the next directory entry from a directory file.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">dir</td><td>The DirFat_t struct that will receive the data.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>For success <a class="el" href="class_fat_file.html#a29502cd34ef186763d2196daef27df1f">readDir()</a> returns the number of bytes read. A value of zero will be returned if end of file is reached. If an error occurs, <a class="el" href="class_fat_file.html#a29502cd34ef186763d2196daef27df1f">readDir()</a> returns -1. Possible errors include <a class="el" href="class_fat_file.html#a29502cd34ef186763d2196daef27df1f">readDir()</a> called before a directory has been opened, this is not a directory file or an I/O error occurred. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ac837a537fbcca14c7aa390c5fc9f4e7c">&#9670;&nbsp;</a></span>remove() <span class="overload">[1/2]</span></h2>

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<p>Remove a file.</p>
<p>The directory entry and all data for the file are deleted.</p>
<dl class="section note"><dt>Note</dt><dd>This function should not be used to delete the 8.3 version of a file that has a long name. For example if a file has the long name "New Text Document.txt" you should not delete the 8.3 name "NEWTEX~1.TXT".</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a75d3276f0b02b03e863afafe5731fedb">&#9670;&nbsp;</a></span>remove() <span class="overload">[2/2]</span></h2>

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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>path</em></td><td>)</td>
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<p>Remove a file.</p>
<p>The directory entry and all data for the file are deleted.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>Path for the file to be removed.</td></tr>
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  </dd>
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<p>Example use: dirFile.remove(filenameToRemove);</p>
<dl class="section note"><dt>Note</dt><dd>This function should not be used to delete the 8.3 version of a file that has a long name. For example if a file has the long name "New Text Document.txt" you should not delete the 8.3 name "NEWTEX~1.TXT".</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a4cebcac13c1f4c9de7a055ae73133599">&#9670;&nbsp;</a></span>rename() <span class="overload">[1/2]</span></h2>

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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>newPath</em></td><td>)</td>
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<p>Rename a file or subdirectory. </p><dl class="section note"><dt>Note</dt><dd>the renamed file will be moved to the current volume working directory.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">newPath</td><td>New path name for the file/directory.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a4b42f2454ff462555c07ea094a92a1e0">&#9670;&nbsp;</a></span>rename() <span class="overload">[2/2]</span></h2>

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          <td class="paramtype"><a class="el" href="class_fat_file.html">FatFile</a> *&#160;</td>
          <td class="paramname"><em>dirFile</em>, </td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>newPath</em>&#160;</td>
        </tr>
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          <td></td>
          <td>)</td>
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<p>Rename a file or subdirectory.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">dirFile</td><td>Directory for the new path. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">newPath</td><td>New path name for the file/directory.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a5aac6e0b3cb08fc8b8668e916a8b0ca5">&#9670;&nbsp;</a></span>rewind()</h2>

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<p>Set the file's current position to zero. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a91e8cfbde27d6879b4f51d2ceb2a9f06">&#9670;&nbsp;</a></span>rewindDirectory()</h2>

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<p>Rewind a file if it is a directory </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a9515bac181d33e7f0125e88fa2ccd283">&#9670;&nbsp;</a></span>rmdir()</h2>

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          <td class="memname">bool FatFile::rmdir </td>
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<p>Remove a directory file.</p>
<p>The directory file will be removed only if it is empty and is not the root directory. <a class="el" href="class_fat_file.html#a9515bac181d33e7f0125e88fa2ccd283">rmdir()</a> follows DOS and Windows and ignores the read-only attribute for the directory.</p>
<dl class="section note"><dt>Note</dt><dd>This function should not be used to delete the 8.3 version of a directory that has a long name. For example if a directory has the long name "New folder" you should not delete the 8.3 name "NEWFOL~1".</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ac780a80526f86d3def701ecdc99d8bfe">&#9670;&nbsp;</a></span>rmRfStar()</h2>

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<p>Recursively delete a directory and all contained files.</p>
<p>This is like the Unix/Linux 'rm -rf *' if called with the root directory hence the name.</p>
<p>Warning - This will remove all contents of the directory including subdirectories. The directory will then be removed if it is not root. The read-only attribute for files will be ignored.</p>
<dl class="section note"><dt>Note</dt><dd>This function should not be used to delete the 8.3 version of a directory that has a long name. See <a class="el" href="class_fat_file.html#ac837a537fbcca14c7aa390c5fc9f4e7c">remove()</a> and <a class="el" href="class_fat_file.html#a9515bac181d33e7f0125e88fa2ccd283">rmdir()</a>.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a773ee6f661fc689a5187f51cb5498086">&#9670;&nbsp;</a></span>seek()</h2>

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          <td>(</td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>pos</em></td><td>)</td>
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<p>Seek to a new position in the file, which must be between 0 and the size of the file (inclusive).</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pos</td><td>the new file position. </td></tr>
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  </dd>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a5812037ea30777cc350698ad26f2c73f">&#9670;&nbsp;</a></span>seekCur()</h2>

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          <td class="paramtype">int32_t&#160;</td>
          <td class="paramname"><em>offset</em></td><td>)</td>
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<p>Set the files position to current position + <em>pos</em>. See <a class="el" href="class_fat_file.html#ab067190d25733ed7e697d9890f61fd7a">seekSet()</a>. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">offset</td><td>The new position in bytes from the current position. </td></tr>
  </table>
  </dd>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a84f677f4e75ef6fa2eb632f4cdf6b486">&#9670;&nbsp;</a></span>seekEnd()</h2>

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          <td class="memname">bool FatFile::seekEnd </td>
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          <td class="paramtype">int32_t&#160;</td>
          <td class="paramname"><em>offset</em> = <code>0</code></td><td>)</td>
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<p>Set the files position to end-of-file + <em>offset</em>. See <a class="el" href="class_fat_file.html#ab067190d25733ed7e697d9890f61fd7a">seekSet()</a>. Can't be used for directory files since file size is not defined. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">offset</td><td>The new position in bytes from end-of-file. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ab067190d25733ed7e697d9890f61fd7a">&#9670;&nbsp;</a></span>seekSet()</h2>

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          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>pos</em></td><td>)</td>
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<p>Sets a file's position.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pos</td><td>The new position in bytes from the beginning of the file.</td></tr>
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  </dd>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a5813d451e7f7ba57a04d177caffc5a9f">&#9670;&nbsp;</a></span>size()</h2>

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<dl class="section return"><dt>Returns</dt><dd>the file's size. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a67f3dc4896c542d695e11aac927f585e">&#9670;&nbsp;</a></span>sync()</h2>

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<p>The <a class="el" href="class_fat_file.html#a67f3dc4896c542d695e11aac927f585e">sync()</a> call causes all modified data and directory fields to be written to the storage device.</p>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a56dabdf73833b7e961c4530eb8e16d23">&#9670;&nbsp;</a></span>timestamp()</h2>

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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>flags</em>, </td>
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          <td class="paramtype">uint16_t&#160;</td>
          <td class="paramname"><em>year</em>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>month</em>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>day</em>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>hour</em>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>minute</em>, </td>
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          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>second</em>&#160;</td>
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<p>Set a file's timestamps in its directory entry.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">flags</td><td>Values for <em>flags</em> are constructed by a bitwise-inclusive OR of flags from the following list</td></tr>
  </table>
  </dd>
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<p>T_ACCESS - Set the file's last access date.</p>
<p>T_CREATE - Set the file's creation date and time.</p>
<p>T_WRITE - Set the file's last write/modification date and time.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">year</td><td>Valid range 1980 - 2107 inclusive.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">month</td><td>Valid range 1 - 12 inclusive.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">day</td><td>Valid range 1 - 31 inclusive.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">hour</td><td>Valid range 0 - 23 inclusive.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">minute</td><td>Valid range 0 - 59 inclusive.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">second</td><td>Valid range 0 - 59 inclusive</td></tr>
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  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>It is possible to set an invalid date since there is no check for the number of days in a month.</dd>
<dd>
Modify and access timestamps may be overwritten if a date time callback function has been set by dateTimeCallback().</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a7dda881dac19ea2aa9b2e85a229a98d7">&#9670;&nbsp;</a></span>truncate() <span class="overload">[1/2]</span></h2>

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<p>Truncate a file at the current file position. will be maintained if it is less than or equal to <em>length</em> otherwise it will be set to end of file.</p>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aa6e663098a578635d37d92e82d18d616">&#9670;&nbsp;</a></span>truncate() <span class="overload">[2/2]</span></h2>

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          <td class="paramtype">uint32_t&#160;</td>
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<p>Truncate a file to a specified length. The current file position will be set to end of file.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">length</td><td>The desired length for the file.</td></tr>
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  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a081dd810835f1ebf8c23ffe92706b485">&#9670;&nbsp;</a></span>write() <span class="overload">[1/4]</span></h2>

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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>str</em></td><td>)</td>
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<p>Write a string to a file. Used by the Arduino Print class. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">str</td><td>Pointer to the string. Use getWriteError to check for errors. </td></tr>
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  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>count of characters written for success or -1 for failure. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a0ace3aaaf6d0fb673a43059c0664fab6">&#9670;&nbsp;</a></span>write() <span class="overload">[2/4]</span></h2>

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          <td class="memname">size_t <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::write </td>
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<p>Write data to an open file.</p>
<dl class="section note"><dt>Note</dt><dd>Data is moved to the cache but may not be written to the storage device until <a class="el" href="class_fat_file.html#a67f3dc4896c542d695e11aac927f585e">sync()</a> is called.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">buffer</td><td>Pointer to the location of the data to be written.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>Number of bytes to write.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>For success <a class="el" href="class_stream_file.html#a0695220134825199b39dee82f18ab1ec">write()</a> returns the number of bytes written, always <em>size</em>. </dd></dl>

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          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>count</em>&#160;</td>
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<p>Write data to an open file.</p>
<dl class="section note"><dt>Note</dt><dd>Data is moved to the cache but may not be written to the storage device until <a class="el" href="class_fat_file.html#a67f3dc4896c542d695e11aac927f585e">sync()</a> is called.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">buf</td><td>Pointer to the location of the data to be written.</td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">count</td><td>Number of bytes to write.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>For success <a class="el" href="class_stream_file.html#a0695220134825199b39dee82f18ab1ec">write()</a> returns the number of bytes written, always <em>count</em>. If an error occurs, <a class="el" href="class_stream_file.html#a0695220134825199b39dee82f18ab1ec">write()</a> returns -1. Possible errors include <a class="el" href="class_stream_file.html#a0695220134825199b39dee82f18ab1ec">write()</a> is called before a file has been opened, write is called for a read-only file, device is full, a corrupt file system or an I/O error. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a0695220134825199b39dee82f18ab1ec">&#9670;&nbsp;</a></span>write() <span class="overload">[4/4]</span></h2>

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          <td class="memname">size_t <a class="el" href="class_stream_file.html">StreamFile</a>&lt; <a class="el" href="class_fat_file.html">FatFile</a> , uint32_t  &gt;::write </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>b</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">inherited</span></span>  </td>
  </tr>
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<p>Write a byte to a file. Required by the Arduino Print class. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>the byte to be written. Use getWriteError to check for errors. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>1 for success and 0 for failure. </dd></dl>

</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>ArduinoSdFat/libraries/SdFat/src/FatLib/<a class="el" href="_fat_file_8h.html">FatFile.h</a></li>
</ul>
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