Zusammengehörigkeiten von FAT directory functions:

Funktionen
void	fat_close_dir (struct fat_dir_struct *dd)

uint8_t	fat_create_dir (struct fat_dir_struct parent, const char dir, struct fat_dir_entry_struct *dir_entry)

struct fat_dir_struct *	fat_open_dir (struct fat_fs_struct fs, const struct fat_dir_entry_struct dir_entry)

uint8_t	fat_read_dir (struct fat_dir_struct dd, struct fat_dir_entry_struct dir_entry)

uint8_t	fat_reset_dir (struct fat_dir_struct *dd)

Ausführliche Beschreibung

Functions for managing directories.

Dokumentation der Funktionen

void fat_close_dir ( struct fat_dir_struct * dd )

Closes a directory descriptor.

This function destroys a directory descriptor which was previously obtained by calling fat_open_dir(). When this function returns, the given descriptor will be invalid.

Parameter

[in] dd The directory descriptor to close.

Siehe auch: fat_open_dir

Definiert in Zeile 1363 der Datei fat.c.

Hier ist ein Graph der zeigt, wo diese Funktion aufgerufen wird:

uint8_t fat_create_dir	(	struct fat_dir_struct *	parent,
		const char *	dir,
		struct fat_dir_entry_struct *	dir_entry
	)

Creates a directory.

Creates a directory and obtains its directory entry. If the directory to create already exists, its directory entry will be returned within the dir_entry parameter.

Zu beachten: The notes which apply to fat_create_file() also apply to this function.

Parameter

[in]	parent	The handle of the parent directory of the new directory.
[in]	dir	The name of the directory to create.
[out]	dir_entry	The directory entry to fill for the new directory.

Rückgabe: 0 on failure, 1 on success.

Siehe auch: fat_delete_dir

Definiert in Zeile 2139 der Datei fat.c.

Hier ist ein Graph, der zeigt, was diese Funktion aufruft:

struct fat_dir_struct* fat_open_dir	(	struct fat_fs_struct *	fs,
		const struct fat_dir_entry_struct *	dir_entry
	)

Opens a directory.

Parameter

[in]	fs	The filesystem on which the directory to open resides.
[in]	dir_entry	The directory entry which stands for the directory to open.

Rückgabe: An opaque directory descriptor on success, 0 on failure.

Siehe auch: fat_close_dir

Definiert in Zeile 1324 der Datei fat.c.

Hier ist ein Graph der zeigt, wo diese Funktion aufgerufen wird:

uint8_t fat_read_dir	(	struct fat_dir_struct *	dd,
		struct fat_dir_entry_struct *	dir_entry
	)

Reads the next directory entry contained within a parent directory.

Parameter

[in]	dd	The descriptor of the parent directory from which to read the entry.
[out]	dir_entry	Pointer to a buffer into which to write the directory entry information.

Rückgabe: 0 on failure, 1 on success.

Siehe auch: fat_reset_dir

Definiert in Zeile 1382 der Datei fat.c.

Hier ist ein Graph, der zeigt, was diese Funktion aufruft:

Hier ist ein Graph der zeigt, wo diese Funktion aufgerufen wird:

uint8_t fat_reset_dir ( struct fat_dir_struct * dd )

Resets a directory handle.

Resets the directory handle such that reading restarts with the first directory entry.

Parameter

[in] dd The directory handle to reset.

Rückgabe: 0 on failure, 1 on success.

Siehe auch: fat_read_dir

Definiert in Zeile 1487 der Datei fat.c.

Hier ist ein Graph der zeigt, wo diese Funktion aufgerufen wird:


	by Hanna