ed when <tt>FF_USE_MKFS == 1</tt>. Note that FatFs does not have FTL (flash translation layer). Either disk I/O layter or storage device must have an FTL in it.</td></tr>
<tr><td>CTRL_TRIM</td><td>Informs the disk I/O layter or the storage device that the data on the block of sectors is no longer needed and it can be erased. The sector block is specified in an <tt>LBA_t</tt> array <tt>{&lt;Start LBA&gt;, &lt;End LBA&gt;}</tt> that pointed by <tt class="arg">buff</tt>. This is an identical command to Trim o