rotek
/
module_universal_io


			
				
					
						
						
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<div class="para">
<h2>DIR</h2>
<p>The <tt>DIR</tt> structure is used for the work area to read a directory by <tt>f_oepndir</tt>, <tt>f_readdir</tt>, <tt>f_findfirst</tt> and <tt>f_findnext</tt> function. Application program must not modify any member in this structure, or any data on the FAT volume can be collapsed.</p>
<pre>
<span class="k">typedef</span> <span class="k">struct</span> {
    FATFS*  fs;         <span class="c">/* Pointer to the owner file system object */</span>
    WORD    id;         <span class="c">/* Owner file system mount ID */</span>
    WORD    index;      <span class="c">/* Index of directory entry to start to search next */</span>
    DWORD   sclust;     <span class="c">/* Table start cluster (0:Root directory) */</span>
    DWORD   clust;      <span class="c">/* Current cluster */</span>
    DWORD   sect;       <span class="c">/* Current sector */</span>
    BYTE*   dir;        <span class="c">/* Pointer to the current SFN entry in the win[] */</span>
    BYTE*   fn;         <span class="c">/* Pointer to the SFN buffer (in/out) {file[8],ext[3],status[1]} */</span>
<span class="k">#if</span> _FS_LOCK
    UINT    lockid;     <span class="c">/* Sub-directory lock ID (0:Root directory) */</span>
<span class="k">#endif</span>
<span class="k">#if</span> _USE_LFN
    WCHAR*  lfn;        <span class="c">/* Pointer to the LFN buffer (in/out) */</span>
    WORD    lfn_idx;    <span class="c">/* Index of the LFN entris (0xFFFF:No LFN) */</span>
<span class="k">#endif</span>
<span class="k">#if</span> _USE_FIND
    const TCHAR*  pat;  <span class="c">/* Ponter to the matching pattern */</span>
<span class="k">#endif</span>
} DIR;
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