BYTE <spanclass="arg">pdrv</span><spanclass="c">/* [IN] Physical drive number */</span>
);
</pre>
</div>
<divclass="para arg">
<h4>Parameter</h4>
<dlclass="par">
<dt>pdrv</dt>
<dd>Physical drive number to identify the target device. Always zero at single drive system.</dd>
</dl>
</div>
<divclass="para ret">
<h4>Return Values</h4>
<p>The current drive status is returned in combination of status flags described below. FatFs refers only <tt>STA_NOINIT</tt> and <tt>STA_PROTECT</tt>.</p>
<dd>Indicates that the device is not initialized and not ready to work. This flag is set on system reset, media removal or failure of <tt>disk_initialize</tt> function. It is cleared on <tt>disk_initialize</tt> function succeeded. Any media change that occurs asynchronously must be captured and reflect it to the status flags, or auto-mount function will not work correctly. If the system does not support media change detection, application program needs to force de-initialize the file system object and re-mount the volume with <tt>f_mount</tt> function after each media change.</dd>
<dd>Indicates that the medium is write protected. This is always cleared at the drives without write protect function. Not valid if no medium in the drive.</dd>