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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