savelij13/FatFS
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fatfs v0.07c Jun 21, 2009:

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- 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.
This commit is contained in:
savelij13 committed 2025-09-11 09:33:51 +03:00
1 parent 3bb1c09ac4
commit 25f499b847
57 files changed
+1888 -982
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doc/en/open.html
+15 -13
View File
@@ -15,9 +15,9 @@
<p>The f_open function creates a <em>file object</em> to be used to access the file.</p>
<pre>
FRESULT f_open (
FIL* <em>FileObject</em>, /* Pointer to the blank file object structure */
const char* <em>FileName</em>, /* Pointer to the file neme */
BYTE <em>ModeFlags</em> /* Mode flags */
FIL* <em>FileObject</em>, /* Pointer to the blank file object structure */
const XCHAR* <em>FileName</em>, /* Pointer to the file neme */
BYTE <em>ModeFlags</em> /* Mode flags */
);
</pre>
</div>
@@ -83,7 +83,7 @@ FRESULT f_open (
<div class="para">
<h4>Description</h4>
<p>The created file object is used for subsequent calls to refer to the file. When close an open file object, use <a href="close.html">f_close</a> function. If modified file is not closed, the file may be collapsed.</p>
<p>The created file object is used for subsequent calls to refer to the file. When close an open file object, use <a href="close.html">f_close</a> function. If the modified file is not closed, the file may be collapsed.</p>
<p>Before using any file function, a work area (file system object) must be given to the logical drive with <a href="mount.html">f_mount</a> function. All file functions can work after this procedure.</p>
<p>The mode flags, <tt>FA_WRITE, FA_CREATE_ALWAYS, FA_CREATE_NEW, FA_OPEN_ALWAYS</tt>, are not available in read-only configuration.</p>
</div>
@@ -92,24 +92,25 @@ FRESULT f_open (
<div class="para">
<h4>Example (File Copy)</h4>
<pre>
void main ()
void main (void)
{
FATFS fs; // Work area (file system object) for logical drive
FATFS fs[2]; // Work area (file system object) for logical drives
FIL fsrc, fdst; // file objects
BYTE buffer[4096]; // file copy buffer
FRESULT res; // FatFs function common result code
UINT br, bw; // File R/W count
// Register a work area for logical drive 0
f_mount(0, &amp;fs);
// Register work area for logical drives
f_mount(0, &amp;fs[0]);
f_mount(1, &amp;fs[1]);
// Open source file
res = f_open(&amp;fsrc, "srcfile.dat", FA_OPEN_EXISTING | FA_READ);
// Open source file on the drive 1
res = f_open(&amp;fsrc, "1:srcfile.dat", FA_OPEN_EXISTING | FA_READ);
if (res) die(res);
// Create destination file
res = f_open(&amp;fdst, "dstfile.dat", FA_CREATE_ALWAYS | FA_WRITE);
// Create destination file on the drive 0
res = f_open(&amp;fdst, "0:dstfile.dat", FA_CREATE_ALWAYS | FA_WRITE);
if (res) die(res);
// Copy source to destination
@@ -124,8 +125,9 @@ void main ()
f_close(&amp;fsrc);
f_close(&amp;fdst);
// Unregister a work area before discard it
// Unregister work area before discard it
f_mount(0, NULL);
f_mount(1, NULL);
}
</pre>
</div>