## FIL

`FIL`構造体は、f_open()で作成され、そのファイルの状態を保持します。アプリケーションから書き換え可能なメンバはありません。

#### FatFs

    typedef struct _FIL {
        WORD    id;             /* Owner file system mount ID (inverted) */
        BYTE    flag;           /* File status flags */
        BYTE    csect;          /* Sector address in the cluster */
        FATFS*  fs;             /* Pointer to the owner file system object */
        DWORD   fptr;           /* File R/W pointer */
        DWORD   fsize;          /* File size */
        DWORD   org_clust;      /* File start cluster */
        DWORD   curr_clust;     /* Current cluster */
        DWORD   curr_sect;      /* Current sector */
        DWORD   dir_sect;       /* Sector containing the directory entry */
        BYTE*   dir_ptr;        /* Ponter to the directory entry in the window */
        BYTE    buffer[512];    /* File R/W buffer */
    } FIL;

#### Tiny-FatFs

    typedef struct _FIL {
        WORD    id;             /* Owner file system mount ID (inverted) */
        BYTE    flag;           /* File status flags */
        BYTE    csect;          /* Sector address in the cluster */
        FATFS*  fs;             /* Pointer to owner file system */
        DWORD   fptr;           /* File R/W pointer */
        DWORD   fsize;          /* File size */
        CLUST   org_clust;      /* File start cluster */
        CLUST   curr_clust;     /* Current cluster */
        DWORD   curr_sect;      /* Current sector */
        DWORD   dir_sect;       /* Sector containing the directory entry */
        BYTE*   dir_ptr;        /* Ponter to the directory entry in the window */
    } FIL;

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