source: UsbWattMeter/trunk/fatfs/00readme.txt@ 165

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1FatFs Module Source Files R0.10b (C)ChaN, 2014
2
3
4FILES
5
6 ffconf.h Configuration file for FatFs module.
7 ff.h Common include file for FatFs and application module.
8 ff.c FatFs module.
9 diskio.h Common include file for FatFs and disk I/O module.
10 diskio.c An example of glue function to attach existing disk I/O module to FatFs.
11 integer.h Integer type definitions for FatFs.
12 option Optional external functions.
13
14 Low level disk I/O module is not included in this archive because the FatFs
15 module is only a generic file system layer and not depend on any specific
16 storage device. You have to provide a low level disk I/O module that written
17 to control your storage device.
18
19
20
21AGREEMENTS
22
23 FatFs module is an open source software to implement FAT file system to
24 small embedded systems. This is a free software and is opened for education,
25 research and commercial developments under license policy of following trems.
26
27 Copyright (C) 2014, ChaN, all right reserved.
28
29 * The FatFs module is a free software and there is NO WARRANTY.
30 * No restriction on use. You can use, modify and redistribute it for
31 personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
32 * Redistributions of source code must retain the above copyright notice.
33
34
35
36REVISION HISTORY
37
38 Feb 26, 2006 R0.00 Prototype
39
40 Apr 29, 2006 R0.01 First release.
41
42 Jun 01, 2006 R0.02 Added FAT12.
43 Removed unbuffered mode.
44 Fixed a problem on small (<32M) patition.
45
46 Jun 10, 2006 R0.02a Added a configuration option _FS_MINIMUM.
47
48 Sep 22, 2006 R0.03 Added f_rename.
49 Changed option _FS_MINIMUM to _FS_MINIMIZE.
50
51 Dec 11, 2006 R0.03a Improved cluster scan algolithm to write files fast.
52 Fixed f_mkdir creates incorrect directory on FAT32.
53
54 Feb 04, 2007 R0.04 Supported multiple drive system. (FatFs)
55 Changed some APIs for multiple drive system.
56 Added f_mkfs. (FatFs)
57 Added _USE_FAT32 option. (Tiny-FatFs)
58
59 Apr 01, 2007 R0.04a Supported multiple partitions on a plysical drive. (FatFs)
60 Fixed an endian sensitive code in f_mkfs. (FatFs)
61 Added a capability of extending the file size to f_lseek.
62 Added minimization level 3.
63 Fixed a problem that can collapse a sector when recreate an
64 existing file in any sub-directory at non FAT32 cfg. (Tiny-FatFs)
65
66 May 05, 2007 R0.04b Added _USE_NTFLAG option.
67 Added FSInfo support.
68 Fixed some problems corresponds to FAT32. (Tiny-FatFs)
69 Fixed DBCS name can result FR_INVALID_NAME.
70 Fixed short seek (0 < ofs <= csize) collapses the file object.
71
72 Aug 25, 2007 R0.05 Changed arguments of f_read, f_write.
73 Changed arguments of f_mkfs. (FatFs)
74 Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs)
75 Fixed f_mkdir on FAT32 creates incorrect directory. (FatFs)
76
77 Feb 03, 2008 R0.05a Added f_truncate().
78 Added f_utime().
79 Fixed off by one error at FAT sub-type determination.
80 Fixed btr in f_read() can be mistruncated.
81 Fixed cached sector is not flushed when create and close without write.
82
83 Apr 01, 2008 R0.06 Added f_forward(). (Tiny-FatFs)
84 Added string functions: fputc(), fputs(), fprintf() and fgets().
85 Improved performance of f_lseek() on move to the same or following cluster.
86
87 Apr 01, 2009, R0.07 Merged Tiny-FatFs as a buffer configuration option.
88 Added long file name support.
89 Added multiple code page support.
90 Added re-entrancy for multitask operation.
91 Added auto cluster size selection to f_mkfs().
92 Added rewind option to f_readdir().
93 Changed result code of critical errors.
94 Renamed string functions to avoid name collision.
95
96 Apr 14, 2009, R0.07a Separated out OS dependent code on reentrant cfg.
97 Added multiple sector size support.
98
99 Jun 21, 2009, R0.07c Fixed f_unlink() may return FR_OK on error.
100 Fixed wrong cache control in f_lseek().
101 Added relative path feature.
102 Added f_chdir().
103 Added f_chdrive().
104 Added proper case conversion for extended characters.
105
106 Nov 03, 2009 R0.07e Separated out configuration options from ff.h to ffconf.h.
107 Added a configuration option, _LFN_UNICODE.
108 Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
109 Fixed name matching error on the 13 char boundary.
110 Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
111
112 May 15, 2010, R0.08 Added a memory configuration option. (_USE_LFN)
113 Added file lock feature. (_FS_SHARE)
114 Added fast seek feature. (_USE_FASTSEEK)
115 Changed some types on the API, XCHAR->TCHAR.
116 Changed fname member in the FILINFO structure on Unicode cfg.
117 String functions support UTF-8 encoding files on Unicode cfg.
118
119 Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
120 Added sector erase feature. (_USE_ERASE)
121 Moved file lock semaphore table from fs object to the bss.
122 Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
123 Fixed f_mkfs() creates wrong FAT32 volume.
124
125 Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
126 f_lseek() reports required table size on creating CLMP.
127 Extended format syntax of f_printf function.
128 Ignores duplicated directory separators in given path names.
129
130 Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
131 Added f_fdisk(). (_MULTI_PARTITION = 2)
132
133 Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16.
134 Changed f_open() and f_opendir() reject null object pointer to avoid crash.
135 Changed option name _FS_SHARE to _FS_LOCK.
136
137 Jan 23,'13 R0.09b Added f_getlabel() and f_setlabel(). (_USE_LABEL)
138
139 Oct 02,'13 R0.10 Added selection of character encoding on the file. (_STRF_ENCODE)
140 Added f_closedir().
141 Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO)
142 Added forced mount feature with changes of f_mount().
143 Improved behavior of volume auto detection.
144 Improved write throughput of f_puts() and f_printf().
145 Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write().
146 Fixed f_write() can be truncated when the file size is close to 4GB.
147 Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect error code.
148
149 Jan 15,'14 R0.10a Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID)
150 Added a configuration option of minimum sector size. (_MIN_SS)
151 2nd argument of f_rename() can have a drive number and it will be ignored.
152 Fixed f_mount() with forced mount fails when drive number is >= 1.
153 Fixed f_close() invalidates the file object without volume lock.
154 Fixed f_closedir() returns but the volume lock is left acquired.
155 Fixed creation of an entry with LFN fails on too many SFN collisions.
156
157 Mar 19,'14 R0.10b Fixed a hard error in the disk I/O layer can collapse the directory entry.
158 Fixed LFN entry is not deleted on delete/rename an object with lossy converted SFN.
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