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8<title>VFInactivateDrive(W)</title>
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12
13<h1>VFInactivateDrive(W)</h1>
14
15<h2>Syntax</h2>
16<dl><dd><pre><code>
17#include &lt;revolution/vf.h&gt;
18
19typedef s32	VFErr;
20
21VFErr VFInactivateDrive( const char* drive );
22VFErr VFInactivateDriveW( const VFWchar* drive );
23
24VFErr VFInactivateDriveForce( const char* drive );
25VFErr VFInactivateDriveForceW( const VFWchar* drive );
26</code></pre></dd></dl>
27
28<h2>Arguments</h2>
29<p>
30<TABLE border="1" >
31  <tr>
32<TD valign="top" width="120" bgcolor="#ffffe8"><CODE><STRONG><EM>drive</EM></STRONG></CODE></TD>
33<TD width="520">The name of the mounted drive. Specify a single letter.</TD>
34  </tr>
35</TABLE>
36</p>
37
38<h2>Return Values</h2>
39<PRE>
40Returns 0 when successful.
41Otherwise, returns <code><a href="./VFErr.html">VFErr</a></code> other than 0.
42</PRE>
43
44
45<H2>Description</H2>
46<p>
47Disables an already mounted drive. Call the separate function, <CODE>VFDetachDrive()</CODE>, as reservations will not be cleared otherwise. The name of the drive can be specified from A to Z.<br> As a result of this process, all of the data in the VF cache is written back to the media and the cache buffer is completely deallocated. <br>The data in VF cache is written back to the media and the cache buffer is released even if (<CODE>VF_WRITE_BACK_CACHE</CODE>) has been specified as the mode in <CODE>VFBuffering</CODE>.<BR><br> <CODE>VFInactiveDrive(W)</CODE> cannot deactivate the drive if there are open files and/or directories on the specified drive (<CODE>VF_ERR_EACCES</CODE>), or if a write-back to the device failed during deactivation (<CODE>VF_ERR_EIO</CODE>).<br> In contrast, because <CODE>VFInactiveDriveForce(W)</CODE> destroys any opened file information and proceeds with the unmount process, it can deactivate a drive in the states described above. In this case, the data of the open file may not be reflected correctly on the media.<br>
48
49</p>
50
51<h2>See Also</h2>
52<p>
53<code><a href="./VFActivateDrive.html">VFActivateDrive</a></code>, <code><a href="./VFUnmountDrive.html">VFUnmountDrive</a></code>
54</p>
55
56<H2>Revision History</H2>
57<p>
582006/11/09<br>2007/05/08 Revised the text about the cache.
59</p>
60
61
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