| Revision | Updates | Migration Notes |
|---|---|---|
| R0.15 Nov 6, 2022 |
Changed user provided synchronization functions in order to completely eliminate the platform dependency from FatFs code. Fixed a potential error in f_mount when FF_FS_REENTRANT. Fixed file lock control FF_FS_LOCK is not mutal excluded when FF_FS_REENTRANT && FF_VOLUMES > 1 is true. Fixed f_mkfs creates broken exFAT volume when the size of volume is >= 2^32 sectors. Fixed string functions cannot write the unicode characters not in BMP when FF_LFN_UNICODE == 2 (UTF-8). Fixed a compatibility issue in identification of GPT header. |
User provided synchronization functions, ff_cre_syncobj, ff_del_syncobj, ff_req_grant and ff_rel_grant, needed when FF_FS_REENTRANT are replaced with ff_mutex_create, ff_mutex_delete, ff_mutex_take and ff_mutex_give respectively. For example, see ffsystem.c. FF_SYNC_t is removed from the configuration options. |
| R0.14b Apr 17, 2021 |
Made FatFs uses standard library string.h for copy, compare and search instead of built-in string functions. Added support for long long integer and floating point to f_printf. (FF_STRF_LLI and FF_STRF_FP) Made path name parser ignores the terminating separator to allow "dir/". Improved the compatibility in Unix style path name feature. Fixed the file gets dead-locked when f_open failed with certain conditions. (appeared at R0.12a) Fixed f_mkfs can create wrong exFAT volume due to a timing dependent error. (appeared at R0.12) Fixed code page 855 cannot be set by f_setcp. (appeared at R0.13) Fixed some compiler warnings. |
From this revision, FatFs depends on string.h. |
| R0.14a Dec 05, 2020 |
Limited number of recursive calls in f_findnext to prevent stack overflow. Fixed old floppy disks formatted with MS-DOS 2.x and 3.x cannot be mounted. Fixed some compiler warnings. |
Number of wildcards in the matching pattern in f_findfirst is limited to 4. |
| R0.14 Oct 14, 2019 |
Added support for 64-bit LBA and GUID partition table (FF_LBA64) Changed some API functions, f_mkfs and f_fdisk. Fixed f_open cannot find the file with file name in length of FF_MAX_LFN characters. Fixed f_readdir cannot retrieve long file names in length of FF_MAX_LFN - 1 characters. Fixed f_readdir returns file names with wrong case conversion. (appeared at R0.12) Fixed f_mkfs can fail to create exFAT volume in the second partition. (appeared at R0.12) |
Usage of f_mkfs and f_fdisk is changed and some features are added to these functions. |
| R0.13c Oct 14, 2018 |
Supported stdint.h for C99 and later. (integer.h was included in ff.h) Fixed reading a directory gets infinite loop when the last directory entry is not empty. (appeared at R0.12) Fixed creating a sub-directory in the fragmented sub-directory on the exFAT volume collapses FAT chain of the parent directory. (appeared at R0.12) Fixed f_getcwd cause output buffer overrun when the buffer has a valid drive number. (appeared at R0.13b) |
From this revision, FatFs depends on stdint.h in C99 or later. integer.h is removed. |
| R0.13b Apr 07, 2018 |
Added support for UTF-32 encoding on the API. (FF_LFN_UNICODE = 3) Added support for Unix style volume prefix. (FF_STR_VOLUME_ID = 2) Fixed accesing objects in the exFAT root directory beyond the cluster boundary can fail. (appeared at R0.12c) Fixed f_setlabel does not reject some invalid characters. (appeared at R0.09b) |
|
| R0.13a Oct 14, 2017 |
Added support for UTF-8 encoding on the API. (FF_LFN_UNICODE = 2) Added options for file name output buffer. (FF_LFN_BUF, FF_SFN_BUF) Added dynamic memory allocation option for working buffer of f_mkfs and f_fdisk. Fixed f_fdisk and f_mkfs create the partition table with wrong CHS parameters. (appeared at R0.09) Fixed f_unlink can cause lost clusters at fragmented file on the exFAT volume. (appeared at R0.12c) Fixed f_setlabel rejects some valid characters for exFAT volume. (appeared at R0.12) |
|
| R0.13 May 21, 2017 |
Prefix of configuration item names are changed from "_" to "FF_". Added f_setcp, run-time code page configuration. (FF_CODE_PAGE = 0) Improved cluster allocation time on stretch a deep buried cluster chain. Improved processing time of f_mkdir with large cluster size by using FF_USE_LFN = 3. Improved exFAT NoFatChain flag of the fragmented file to be set after it is truncated and got contiguous. Fixed archive attribute is left not set when a file on the exFAT volume is renamed. (appeared at R0.12) Fixed exFAT FAT entry can be collapsed when write or lseek operation to the existing file is done. (appeared at R0.12c) Fixed creating a file can fail when a new cluster allocation to the exFAT directory occures. (appeared at R0.12c) |
ASCII only configuration, FF_CODE_PAGE = 1, is removed. Use FF_CODE_PAGE = 437 instead. |
| R0.12c Mar 04, 2017 |
Improved write throughput at the fragmented file on the exFAT volume. Made memory usage for exFAT be able to be reduced as decreasing _MAX_LFN. Fixed successive f_getfree can return wrong count on the FAT12/16 volume. (appeared at R0.12) Fixed configuration option _VOLUMES cannot be set 10. (appeared at R0.10c) |
|
| R0.12b Sep 4, 2016 |
Made f_rename be able to rename objects with the same name but case. Fixed an error in the case conversion teble of code page 866. (ff.c) Fixed writing data is truncated at the file offset 4GiB on the exFAT volume. (appeared at R0.12) Fixed creating a file in the root directory of exFAT volume can fail. (appeared at R0.12) Fixed f_mkfs creating exFAT volume with too small cluster size can collapse unallocated memory. (appeared at R0.12a) Fixed wrong object name can be returned when read directory at Unicode cfg. (appeared at R0.12) Fixed large file allocation/removing on the exFAT volume collapses allocation bitmap. (appeared at R0.12) Fixed some internal errors in f_expand and f_lseek. (appeared at R0.12) |
|
| R0.12a Jul 10, 2016 |
Added support for creating exFAT volume with some changes of f_mkfs. Added a file open method FA_OPEN_APPEND. f_forward is available regardless of _FS_TINY. Fixed f_mkfs creates broken volume. (appeared at R0.12) Fixed wrong memory read in create_name. (appeared at R0.12) Fixed compilation fails at some configurations, _USE_FASTSEEK and _USE_FORWARD. |
Usage of f_mkfs is changed. |
| R0.12 Apr 12, 2016 |
Added support for exFAT file system. (_FS_EXFAT) Added f_expand. (_USE_EXPAND) Changed some members in FINFO and behavior of f_readdir. Added a configuration option _USE_CHMOD. Fixed errors in the case conversion teble of Unicode (cc*.c). |
Usage and members of FINFO sructure used in f_readdir is changed. Dot entries in the sub-directory are never appear in f_readdir. ".." does not work as path name in exFAT volume. f_getcwd does not work in exFAT volume. Many members in FIL and DIR structure are changed. To use f_chmod, _USE_CHMOD needs to be set. _WORD_ACCESS is removed from the configuration options. |
| R0.11a Sep 5, 2015 |
Fixed wrong media change can lead a deadlock at thread-safe configuration. Added code page 771, 860, 861, 863, 864, 865 and 869. (_CODE_PAGE) Fixed errors in the case conversion teble of code page 437 and 850 (ff.c). Fixed errors in the case conversion teble of Unicode (cc*.c). |
Removed some code pages actually not exist on the standard systems. (_CODE_PAGE) |
| R0.11 Feb 9, 2015 |
Added f_findfirst and f_findnext. (_USE_FIND) Fixed f_unlink does not remove cluster chain of the file. (appeared at R0.10c) Fixed _FS_NORTC option does not work properly. (appeared at R0.10c) |
|
| R0.10c Nov 9, 2014 |
Added a configuration option for the platforms without RTC. (_FS_NORTC) Fixed volume label created by Mac OS X cannot be retrieved with f_getlabel. (appeared at R0.09b) Fixed a potential problem of FAT access that can appear on disk error. Fixed null pointer dereference on attempting to delete the root direcotry. (appeared at R0.08) |
|
| R0.10b May 19, 2014 |
Fixed a hard error in the disk I/O layer can collapse the directory entry. Fixed LFN entry is not deleted on delete/rename an object with its lossy converted SFN. (appeared at R0.07) |
|
| R0.10a Jan 15, 2014 |
Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID) Added an option for minimum sector size. (_MIN_SS) 2nd argument of f_rename can have a drive number and it will be ignored. Fixed f_mount with forced mount fails when drive number is larger than 0. (appeared at R0.10) Fixed f_close invalidates the file object without volume lock. Fixed volume lock is left acquired after return from f_closedir. (appeared at R0.10) Fixed creation of a directory entry with LFN fails on too many SFN collisions. (appeared at R0.07) |
|
| R0.10 Oct 2, 2013 |
Added an option for character encoding on the file. (_STRF_ENCODE) Added f_closedir. Added forced full FAT scan option for f_getfree. (_FS_NOFSINFO) Added forced mount option with changes of f_mount. Improved behavior of volume auto detection. Improved write throughput of f_puts and f_printf. Changed argument of f_chdrive, f_mkfs, disk_read and disk_write. Fixed f_write can be truncated when the file size is close to 4 GB. Fixed f_open, f_mkdir and f_setlabel can return incorrect result code on error. |
|
| R0.09b Jan 24, 2013 |
Added f_getlabel and f_setlabel. (_USE_LABEL) |
|
| R0.09a Aug 27, 2012 |
Fixed assertion failure due to OS/2 EA on FAT12/16 volume. Changed file functions reject null object pointer to avoid crash. Changed option name _FS_SHARE to _FS_LOCK. |
|
| R0.09 Sep 6, 2011 |
f_mkfs supports multiple partition on a physical drive. Added f_fdisk. (_MULTI_PARTITION = 2) |
|
| R0.08b Jan 15, 2011 |
Fast seek function is also applied to f_read and f_write. f_lseek reports required table size on creating CLMP. Extended format syntax of f_printf. Ignores duplicated directory separators in given path names. |
|
| R0.08a Aug 16, 2010 |
Added f_getcwd. (_FS_RPATH = 2) Added sector erase function. (_USE_ERASE) Moved file lock semaphore table from fs object to the bss. Fixed f_mkdir creates wrong directory on non-LFN cfg when the given name contains ';'. Fixed f_mkfs creates wrong FAT32 volume. |
|
| R0.08 May 15, 2010 |
Added an option to _USE_LFN Added support of file lock. (_FS_SHARE) Added fast seek function. (_USE_FASTSEEK) Changed a type name on the API, XCHAR to TCHAR. Changed member, fname, in the FILINFO on Unicode cfg. String functions support UTF-8 encoding files on Unicode cfg. |
|
| R0.07e Nov 3, 2009 |
Separated out configuration options from ff.h to ffconf.h. Added a configuration option, _LFN_UNICODE. Fixed f_unlink fails to remove a sub-dir on _FS_RPATH. Fixed name matching error on the 13 char boundary. Changed f_readdir to return the SFN with always upper case on non-LFN cfg. |
|
| R0.07c Jan 21, 2009 |
Fixed f_unlink may return FR_OK on error. Fixed wrong cache control in f_lseek. Added support of relative path. Added f_chdir. Added f_chdrive. Added proper case conversion to extended characters. |
|
| R0.07a Apr 14, 2009 |
Separated out OS dependent code on re-entrant configuration. Added multiple sector size support. |
|
| R0.07 Apr 1, 2009 |
Merged Tiny-FatFs into FatFs as a buffer configuration option. Added support for long file extension. Added multiple code page support. Added re-entrancy for multitask operation. Added auto cluster size selection to f_mkfs. Added rewind option to f_readdir. Changed result code of critical errors. Renamed string functions to avoid name collision. |
|
| R0.06 Apr 1, 2008 |
Added f_forward. (Tiny-FatFs) Added string functions: f_gets, f_putc, f_puts and f_printf. Improved performance of f_lseek on moving to the same or following cluster. |
|
| R0.05a Feb 3, 2008 |
Added f_truncate. Added f_utime. Fixed off by one error at FAT sub-type determination. Fixed btr in f_read can be mistruncated. Fixed cached sector is left not flushed when create and close without write. |
|
| R0.05 Aug 26, 2007 |
Changed arguments of f_read, f_write. Changed arguments of f_mkfs. (FatFs) Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs) Fixed f_mkdir on FAT32 creates broken directory. (FatFs) |
|
| R0.04b May 5, 2007 |
Added _USE_NTFLAG option. Added support for FSInfo in FAT32 volume. Fixed some problems corresponds to FAT32. (Tiny-FatFs) Fixed DBCS name can result FR_INVALID_NAME. Fixed short seek (<= csize) collapses the file object. |
|
| R0.04a Apr 1, 2007 |
Supported multiple partitions on a plysical drive. (FatFs) Added minimization level 3. Added a capability of extending file size to f_lseek. Fixed an endian sensitive code in f_mkfs. (FatFs) Fixed a problem corresponds to FAT32 support. (Tiny-FatFs) |
|
| R0.04 Feb 4, 2007 |
Supported multiple drive system. (FatFs) Changed some APIs for multiple drive system. Added f_mkfs. (FatFs) Added _USE_FAT32 option. (Tiny-FatFs) |
|
| R0.03a Dec 11, 2006 |
Improved cluster scan algolithm to write files fast. Fixed f_mkdir creates broken directory on FAT32. |
|
| R0.03 Sep 22, 2006 |
Added f_rename.
Changed option _FS_MINIMUM to _FS_MINIMIZE. |
|
| R0.02a Jun 10, 2006 |
Added a configuration option _FS_MINIMUM. |
|
| R0.02 Jun 01, 2006 |
Added FAT12. Removed unbuffered mode. Fixed a problem on small (<32M) patition. |
|
| R0.01 Apr 29, 2006 |
First release. |