savelij13
25f499b847
- Fixed f_unlink() may return FR_OK on error. - Fixed wrong cache control in f_lseek(). - Added relative path feature. - Added f_chdir(). - Added f_chdrive(). - Added proper case conversion to extended char.
52 lines
2.1 KiB
HTML
52 lines
2.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="ja">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<link rel="up" title="FatFs" href="../00index_j.html">
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<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs - FATFS</title>
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</head>
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<body>
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<div class="para">
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<h2>FATFS</h2>
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<p><tt>FATFS</tt>構造体は、個々の論理ドライブのダイナミック・ワーク・エリアを保持し、f_mount()でFatFsモジュールに登録されます。標準状態では次のようなメンバになっています。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。</p>
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<pre>
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typedef struct _FATFS_ {
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BYTE fs_type; /* FAT sub type */
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BYTE drive; /* Physical drive number */
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BYTE csize; /* Number of sectors per cluster */
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BYTE n_fats; /* Number of FAT copies */
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BYTE wflag; /* win[] dirty flag (1:must be written back) */
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WORD id; /* File system mount ID */
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WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */
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#if _FS_REENTRANT
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HANDLE h_mutex; /* Handle to the mutex (Platform dependent) */
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#endif
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#if _MAX_SS != 512
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WORD s_size; /* Sector size */
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#endif
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#if !_FS_READONLY
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BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
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DWORD last_clust; /* Last allocated cluster */
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DWORD free_clust; /* Number of free clusters */
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DWORD fsi_sector; /* fsinfo sector */
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#endif
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DWORD sects_fat; /* Sectors per fat */
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DWORD max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */
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DWORD fatbase; /* FAT start sector */
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DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */
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DWORD database; /* Data start sector */
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DWORD winsect; /* Current sector appearing in the win[] */
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BYTE win[_MAX_SS]; /* Disk access window for Directory/FAT */
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} FATFS;
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</pre>
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</div>
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<p class="foot"><a href="../00index_j.html">戻る</a></p>
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</body>
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