 is always prohibited, and also open file must not be renamed or deleted. A violation of these rules can cause data colluption.</p>
<p>The file lock control can be enabled by <tt><a href="config.html#fs_lock">_FS_LOCK</a></tt> option. The value of option defines the number of open objects to manage simultaneously. In this case, if any open, rename or remove that violating the file shareing rule that described above is attempted, the file function will rejected with <tt>FR_LOCKED</tt>. If number of open obje