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fatfs v0.04 Feb 04, 2007:

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- Supported multiple drive system.
- Changed some APIs for multiple drive system.
- Added f_mkfs().
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savelij13 committed 2025-09-11 09:03:34 +03:00
1 parent f76dc3a97f
commit 3d65978d31
75 files changed
+2636 -1380
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doc/en/write.html
+9 -9
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@@ -15,10 +15,10 @@
<p>The f_write writes data to a file.</p>
<pre>
FRESULT f_write (
FIL* <em>FileObject</em>, // Pointer to the file object structure
const void* <em>Buffer</em>, // Pointer to the data to be written
WORD <em>ByteToWrite</em>, // Number of bytes to write
WORD* <em>ByteWritten</em> // Pointer to the variable to return number of bytes written
FIL* <em>FileObject</em>, /* Pointer to the file object structure */
const void* <em>Buffer</em>, /* Pointer to the data to be written */
WORD <em>ByteToWrite</em>, /* Number of bytes to write */
WORD* <em>ByteWritten</em> /* Pointer to the variable to return number of bytes written */
);
</pre>
</div>
@@ -27,7 +27,7 @@ FRESULT f_write (
<h4>Parameter</h4>
<dl class="par">
<dt>FileObject</dt>
<dd>Pointer to the valid file object structure.</dd>
<dd>Pointer to the open file object structure.</dd>
<dt>Buffer</dt>
<dd>Pointer to the data to be written.</dd>
<dt>ByteToWrite</dt>
@@ -46,18 +46,18 @@ FRESULT f_write (
<dt>FR_DENIED</dt>
<dd>The function denied due to the file has been opened in read only mode.</dd>
<dt>FR_RW_ERROR</dt>
<dd>Any error occured in low level disk I/O.</dd>
<dd>Any error has occured in low level disk I/O layer.</dd>
<dt>FR_NOT_READY</dt>
<dd>The disk drive cannot work due to no medium in the drive or any other reason.</dd>
<dt>FR_NOT_ENABLED</dt>
<dd>FatFs module is not enabled.</dd>
<dt>FR_INVALID_OBJECT</dt>
<dd>The file object is invalid.</dd>
</dl>
</div>
<div class="para">
<h4>Description</h4>
<p>The read/write pointer increases in number of bytes written. The <tt>ByteWritten</tt> will be less than <tt>ByteToWrite</tt> when disk gets full during write function. This function is not supported in read-only configuration.</p>
<p>The read/write pointer in the file object is increased in number of bytes written. The <tt>ByteWritten</tt> will become less than <tt>ByteToWrite</tt> when disk gets full during write function. This function is not supported in read-only configuration.</p>
</div>