duplicating on the driver side. This is especially useful when using
the <function>read()</function> or <function>write()</function>, which
are not augmented by timestamps or sequence counters, and to avoid
-unneccessary data copying.</para>
+unnecessary data copying.</para>
<para>Further these ioctls can be used to determine the number of
buffers used internally by a driver in read/write mode. For