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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.basic_serial_port.lowest_layer_type"></a><a class="link" href="lowest_layer_type.html" title="basic_serial_port::lowest_layer_type">basic_serial_port::lowest_layer_type</a>
</h4></div></div></div>
<p>
<a class="indexterm" name="id828152"></a>
A <a class="link" href="../basic_serial_port.html" title="basic_serial_port"><code class="computeroutput"><span class="identifier">basic_serial_port</span></code></a> is always the
lowest layer.
</p>
<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">basic_serial_port</span><span class="special"><</span> <span class="identifier">SerialPortService</span> <span class="special">></span> <span class="identifier">lowest_layer_type</span><span class="special">;</span>
</pre>
<a name="asio.reference.basic_serial_port.lowest_layer_type.types"></a><h6>
<a name="id828216"></a>
<a class="link" href="lowest_layer_type.html#asio.reference.basic_serial_port.lowest_layer_type.types">Types</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="implementation_type.html" title="basic_serial_port::implementation_type"><span class="bold"><strong>implementation_type</strong></span></a>
</p>
</td>
<td>
<p>
The underlying implementation type of I/O object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="lowest_layer_type.html" title="basic_serial_port::lowest_layer_type"><span class="bold"><strong>lowest_layer_type</strong></span></a>
</p>
</td>
<td>
<p>
A basic_serial_port is always the lowest layer.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="native_type.html" title="basic_serial_port::native_type"><span class="bold"><strong>native_type</strong></span></a>
</p>
</td>
<td>
<p>
The native representation of a serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="service_type.html" title="basic_serial_port::service_type"><span class="bold"><strong>service_type</strong></span></a>
</p>
</td>
<td>
<p>
The type of the service that will be used to provide I/O operations.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.basic_serial_port.lowest_layer_type.member_functions"></a><h6>
<a name="id828366"></a>
<a class="link" href="lowest_layer_type.html#asio.reference.basic_serial_port.lowest_layer_type.member_functions">Member
Functions</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="assign.html" title="basic_serial_port::assign"><span class="bold"><strong>assign</strong></span></a>
</p>
</td>
<td>
<p>
Assign an existing native serial port to the serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="async_read_some.html" title="basic_serial_port::async_read_some"><span class="bold"><strong>async_read_some</strong></span></a>
</p>
</td>
<td>
<p>
Start an asynchronous read.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="async_write_some.html" title="basic_serial_port::async_write_some"><span class="bold"><strong>async_write_some</strong></span></a>
</p>
</td>
<td>
<p>
Start an asynchronous write.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="basic_serial_port.html" title="basic_serial_port::basic_serial_port"><span class="bold"><strong>basic_serial_port</strong></span></a>
</p>
</td>
<td>
<p>
Construct a basic_serial_port without opening it.
</p>
<p>
Construct and open a basic_serial_port.
</p>
<p>
Construct a basic_serial_port on an existing native serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="cancel.html" title="basic_serial_port::cancel"><span class="bold"><strong>cancel</strong></span></a>
</p>
</td>
<td>
<p>
Cancel all asynchronous operations associated with the serial
port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="close.html" title="basic_serial_port::close"><span class="bold"><strong>close</strong></span></a>
</p>
</td>
<td>
<p>
Close the serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="get_io_service.html" title="basic_serial_port::get_io_service"><span class="bold"><strong>get_io_service</strong></span></a>
</p>
</td>
<td>
<p>
Get the io_service associated with the object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="get_option.html" title="basic_serial_port::get_option"><span class="bold"><strong>get_option</strong></span></a>
</p>
</td>
<td>
<p>
Get an option from the serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="io_service.html" title="basic_serial_port::io_service"><span class="bold"><strong>io_service</strong></span></a>
</p>
</td>
<td>
<p>
(Deprecated: use get_io_service().) Get the io_service associated
with the object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="is_open.html" title="basic_serial_port::is_open"><span class="bold"><strong>is_open</strong></span></a>
</p>
</td>
<td>
<p>
Determine whether the serial port is open.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="lowest_layer.html" title="basic_serial_port::lowest_layer"><span class="bold"><strong>lowest_layer</strong></span></a>
</p>
</td>
<td>
<p>
Get a reference to the lowest layer.
</p>
<p>
Get a const reference to the lowest layer.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="native.html" title="basic_serial_port::native"><span class="bold"><strong>native</strong></span></a>
</p>
</td>
<td>
<p>
Get the native serial port representation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="open.html" title="basic_serial_port::open"><span class="bold"><strong>open</strong></span></a>
</p>
</td>
<td>
<p>
Open the serial port using the specified device name.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="read_some.html" title="basic_serial_port::read_some"><span class="bold"><strong>read_some</strong></span></a>
</p>
</td>
<td>
<p>
Read some data from the serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="send_break.html" title="basic_serial_port::send_break"><span class="bold"><strong>send_break</strong></span></a>
</p>
</td>
<td>
<p>
Send a break sequence to the serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="set_option.html" title="basic_serial_port::set_option"><span class="bold"><strong>set_option</strong></span></a>
</p>
</td>
<td>
<p>
Set an option on the serial port.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="write_some.html" title="basic_serial_port::write_some"><span class="bold"><strong>write_some</strong></span></a>
</p>
</td>
<td>
<p>
Write some data to the serial port.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.basic_serial_port.lowest_layer_type.protected_data_members"></a><h6>
<a name="id828866"></a>
<a class="link" href="lowest_layer_type.html#asio.reference.basic_serial_port.lowest_layer_type.protected_data_members">Protected
Data Members</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="implementation.html" title="basic_serial_port::implementation"><span class="bold"><strong>implementation</strong></span></a>
</p>
</td>
<td>
<p>
The underlying implementation of the I/O object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="service.html" title="basic_serial_port::service"><span class="bold"><strong>service</strong></span></a>
</p>
</td>
<td>
<p>
The service associated with the I/O object.
</p>
</td>
</tr>
</tbody>
</table></div>
<p>
The <a class="link" href="../basic_serial_port.html" title="basic_serial_port"><code class="computeroutput"><span class="identifier">basic_serial_port</span></code></a>
class template provides functionality that is common to all serial ports.
</p>
<a name="asio.reference.basic_serial_port.lowest_layer_type.thread_safety"></a><h6>
<a name="id828995"></a>
<a class="link" href="lowest_layer_type.html#asio.reference.basic_serial_port.lowest_layer_type.thread_safety">Thread
Safety</a>
</h6>
<p>
<span class="bold"><strong>Distinct</strong></span> <span class="bold"><strong>objects:</strong></span>
Safe.
</p>
<p>
<span class="bold"><strong>Shared</strong></span> <span class="bold"><strong>objects:</strong></span>
Unsafe.
</p>
<a name="asio.reference.basic_serial_port.lowest_layer_type.requirements"></a><h6>
<a name="id829045"></a>
<a class="link" href="lowest_layer_type.html#asio.reference.basic_serial_port.lowest_layer_type.requirements">Requirements</a>
</h6>
<p>
<span class="bold"><strong>Header: </strong></span><code class="literal">asio/basic_serial_port.hpp</code>
</p>
<p>
<span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</code>
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 Christopher M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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