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<div class="para func">
<h2>disk_ioctl</h2>
<p>The disk_ioctl function is called to control device specific features and miscellaneous functions other than generic read/write.</p>
<pre>
DRESULT disk_ioctl (
  BYTE <span class="arg">pdrv</span>,     <span class="c">/* [IN] Drive number */</span>
  BYTE <span class="arg">cmd</span>,      <span class="c">/* [IN] Control command code */</span>
  void* <span class="arg">buff</span>     <span class="c">/* [I/O] Parameter and data buff