## DIR

`DIR`構造体は、f_opendir(), f_readdir()のワーク・エリアとして使用されます。

    typedef struct _DIR_ {
        FATFS*  fs;        /* Pointer to the owner file system object */
        WORD    id;        /* Owner file system mount ID */
        WORD    index;     /* Current index number */
        DWORD   sclust;    /* Table start cluster (0:Static table) */
        DWORD   clust;     /* Current cluster */
        DWORD   sect;      /* Current sector */
        BYTE*   dir;       /* Pointer to the current SFN entry in the win[] */
        BYTE*   fn;        /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
    #if _USE_LFN
        WCHAR*  lfn;       /* Pointer to the LFN working buffer */
        WORD    lfn_idx;   /* Last matched LFN index (0xFFFF:No LFN) */
    #endif
    } DIR;

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