The Standard Embedded Flash File System, EFFS-STD
#include< fsf.h>
. More...

Topics
	STD File System Seek Codes

Macros
#define	fs_getfreespace(drivenum, space)
	Provides information about the drive space usage.
#define	fs_mkdir(dirname)
	Makes a new directory.
#define	fs_chdir(dirname)
	Change the directory.
#define	fs_rmdir(dirname)
	Removes a directory.
#define	fs_delete(filename)
	Deletes a file.
#define	fs_findfirst(filename, find)
	Find the first file or subdirectory in a specified directory.
#define	fs_findnext(find)
	Finds the next file or subdirectory in a specified directory after a previous call to fs_findfirst() or fs_findnext().
#define	fs_open(filename, mode)
	Opens a file in the file system.
#define	fs_close(filehandle)
	Closes an opened file.
#define	fs_write(buf, size, size_st, filehandle)
	Write data to the file at the current position.
#define	fs_read(buf, size, size_st, filehandle)
	Read data from the current position in a file.
#define	fs_seek(filehandle, offset, whence)
	Move the stream position of an open file.
#define	fs_eof(filehandle)
	Check whether the current position in the open target file is the end of the file.
#define	fs_rewind(filehandle)
	Sets the file position in the open target file to the start of the file.
#define	fs_settimedate(filename, ctime, cdate)
	Set the time and date of a file or directory.
#define	fs_gettimedate(filename, pctime, pcdate)
	Get the time and date of a file or directory.

Detailed Description

The Standard Embedded Flash File System, EFFS-STD
#include< fsf.h>
.

Macro Definition Documentation

◆ fs_chdir

#define fs_chdir ( dirname )

#include <fsf.h>

Value:

fsm_chdir(dirname)

Change the directory.

Parameters

dirname The directory to change to.

Return values

FS_NOERR	If able to change to the directory
!FS_NOERR	If unable to change to the directory

See also: fs_mkdir(); fs_rmdir()

◆ fs_close

#define fs_close ( filehandle )

#include <fsf.h>

Value:

fsm_close(filehandle)

Closes an opened file.

Parameters

filehandle A handle to the file to close.

Return values

FS_NOERR	If able to close the file
!FS_NOERR	If unable to close the file

◆ fs_delete

#define fs_delete ( filename )

#include <fsf.h>

Value:

fsm_delete(filename)

Deletes a file.

A read-only or open file cannot be deleted.

Parameters

filename The name of the file to be deleted.

Return values

FS_NOERR	If able to delete the file
!FS_NOERR	If unable to delete the file

◆ fs_eof

#define fs_eof ( filehandle )

#include <fsf.h>

Value:

fsm_eof(filehandle)

Check whether the current position in the open target file is the end of the file.

Parameters

filehandle A handle to the file to check.

Return values

0	Nothing at the end of the file
!0	The end of the file, or an error

◆ fs_findfirst

#define fs_findfirst	(		filename,
			find )

#include <fsf.h>

Value:

fsm_findfirst(filename, find)

Find the first file or subdirectory in a specified directory.

Note: If this is called with "*.*" and this is not the root directory, the first entry found will be ".", which is the current directory.

Parameters

filename	The name of the file to find.
find	Where to store the found information.

Return values

FS_NOERR	If the file was found
!FS_NOERR	If the file wasn't found or there are errors

See also: fs_findnext()

◆ fs_findnext

#define fs_findnext ( find )

#include <fsf.h>

Value:

fsm_findnext(find)

Finds the next file or subdirectory in a specified directory after a previous call to fs_findfirst() or fs_findnext().

Note: If this is called with "*.*" and this is not the root directory, the first entry found will be ".", which is the current directory.

Parameters

find	Where to store the found information.

Return values

FS_NOERR	If the file was found
!FS_NOERR	If the file wasn't found or there are errors

See also: fs_findfirst()

◆ fs_getfreespace

#define fs_getfreespace	(		drivenum,
			space )

#include <fsf.h>

Value:

fsm_getfreespace(drivenum, space)

Provides information about the drive space usage.

Parameters

drivenum	The drive number to get space usage for.
space	The structure to store the usage information in.

Return values

FS_NOERR	If able to get the drive space usage
!FS_NOERR	If unable to get the drive space usage

◆ fs_gettimedate

#define fs_gettimedate	(	filename,
		pctime,
		pcdate )

#include <fsf.h>

Value:

fsm_gettimedate(filename, pctime, pcdate)

Get the time and date of a file or directory.

Parameters

filename	The name of the file or directory to modify.
pctime	A pointer to store the creation time of the file or directory.
pcdate	A pointer to store the creation date of the file or directory.

Return values

FS_NOERR	If able to get time and date
!FS_NOERR	If unable to get time and date

◆ fs_mkdir

#define fs_mkdir ( dirname )

#include <fsf.h>

Value:

fsm_mkdir(dirname)

Makes a new directory.

Parameters

dirname The name to use for the new directory.

Return values

FS_NOERR	If able to make the directory
!FS_NOERR	If unable to make the directory

See also: fs_chdir(); fs_rmdir()

◆ fs_open

#define fs_open	(		filename,
			mode )

#include <fsf.h>

Value:

fsm_open(filename, mode)

Opens a file in the file system.

Parameters

filename The name of the file to open.

mode

The mode to open the file in. The following options are available:

"r": Reading. The stream is positioned at the beginning of the file.
"r+": Reading and writing. The stream is positioned at the beginning of the file.
"w": Truncate file to 0 length or create for writing. The stream is positioned at the beginning of the file.
"w+": Reading and writing. Create if it doesn't exist, or truncate if it does. The stream is positioned at the beginning of the file.
"a": Append, and create if it doesn't exist. The stream is positioned at the end of the file.
"a+": Reading and appending, and create if it doesn't exist. The stream is positioned at the end of the file.

Return values

FS_FILE*	Pointer to the file if it could be opened
0	If it a file could not be opened

See also: fs_close()

◆ fs_read

#define fs_read	(	buf,
		size,
		size_st,
		filehandle )

#include <fsf.h>

Value:

fsm_read(buf, size, size_st, filehandle)

Read data from the current position in a file.

Parameters

buf	A pointer where the data should be read.
size	The size of the items to be read.
size_st	The number of items to be read.
filehandle	A handle to the file to read to.

Returns: The number of items read.

◆ fs_rewind

#define fs_rewind ( filehandle )

#include <fsf.h>

Value:

fsm_rewind(filehandle)

Sets the file position in the open target file to the start of the file.

Parameters

filehandle A handle to the file operate on.

Return values

FS_NOERR	If successful
!FS_NOERR	If there was an error

◆ fs_rmdir

#define fs_rmdir ( dirname )

#include <fsf.h>

Value:

fsm_rmdir(dirname)

Removes a directory.

Note: The target directory must be empty, otherwise an error code is returned.

Parameters

dirname The name of the directory to remove.

Return values

FS_NOERR	If able to get the drive space usage
!FS_NOERR	If unable to get the drive space usage

See also: fs_chdir(); fs_mkdir()

◆ fs_seek

#define fs_seek	(	filehandle,
		offset,
		whence )

#include <fsf.h>

Value:

fsm_seek(filehandle, offset, whence)

Move the stream position of an open file.

Parameters

filehandle	A handle to the file to move the position of.
offset	The relative byte position according to whence.
whence	Where to calculate the offset from. Can be a value from fSeekCodeGroup.

Return values

FS_NOERR	If the seek operation was successful
!FS_NOERR	If there was an error

◆ fs_settimedate

#define fs_settimedate	(	filename,
		ctime,
		cdate )

#include <fsf.h>

Value:

fsm_settimedate(filename, ctime, cdate)

Set the time and date of a file or directory.

Parameters

filename	The name of the file or directory to modify.
ctime	The creation time of the file or directory.
cdate	The creation date of the file or directory.

Return values

FS_NOERR	If able to set time and date
!FS_NOERR	If unable to set time and date

◆ fs_write

#define fs_write	(	buf,
		size,
		size_st,
		filehandle )

#include <fsf.h>

Value:

fsm_write(buf, size, size_st, filehandle)

Write data to the file at the current position.

Parameters

buf	A pointer to the data to write.
size	The size of the items to write.
size_st	The number of items to write.
filehandle	A handle to the file to write to.

Returns: The number of items written.

Topics

Macros

Detailed Description

Macro Definition Documentation

◆ fs_chdir

◆ fs_close

◆ fs_delete

◆ fs_eof

◆ fs_findfirst

◆ fs_findnext

◆ fs_getfreespace

◆ fs_gettimedate

◆ fs_mkdir

◆ fs_open

◆ fs_read

◆ fs_rewind

◆ fs_rmdir

◆ fs_seek

◆ fs_settimedate

◆ fs_write