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<div class="title">sio.h File Reference</div>  </div>
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<div class="textblock"><code>#include &quot;<a class="el" href="../../d2/d2d/arch_8h_source.html">net/arch.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="../../dc/dba/opt_8h_source.html">net/opt.h</a>&quot;</code><br />
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Include dependency graph for sio.h:</div>
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<p><a href="../../da/dda/sio_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ac868e938508a529a77cdc81a6765bd0b"><td class="memItemLeft" align="right" valign="top">typedef void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a127c33a3c36b7de915a9fe0e1223e063"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#a127c33a3c36b7de915a9fe0e1223e063">sio_open</a> (<a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> devnum)</td></tr>
<tr class="separator:a127c33a3c36b7de915a9fe0e1223e063"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac5a6563ee5f12459451010139a04a03b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#ac5a6563ee5f12459451010139a04a03b">sio_read</a> (<a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> fd, <a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *data, <a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> len)</td></tr>
<tr class="separator:ac5a6563ee5f12459451010139a04a03b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aee1b714fc5a4f0fa198537fa7ea48359"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#aee1b714fc5a4f0fa198537fa7ea48359">sio_read_abort</a> (<a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> fd)</td></tr>
<tr class="separator:aee1b714fc5a4f0fa198537fa7ea48359"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5747f8d8042b712aa5219d5338bf2721"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#a5747f8d8042b712aa5219d5338bf2721">sio_recv</a> (<a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> fd)</td></tr>
<tr class="separator:a5747f8d8042b712aa5219d5338bf2721"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2c60bae2a81c07930ee504308f6a38b2"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#a2c60bae2a81c07930ee504308f6a38b2">sio_send</a> (<a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> c, <a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> fd)</td></tr>
<tr class="separator:a2c60bae2a81c07930ee504308f6a38b2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3780ab1928702f82974ee66988220040"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#a3780ab1928702f82974ee66988220040">sio_tryread</a> (<a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> fd, <a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *data, <a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> len)</td></tr>
<tr class="separator:a3780ab1928702f82974ee66988220040"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a23df0f187d94bc56513062032289c488"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/dda/sio_8h.html#a23df0f187d94bc56513062032289c488">sio_write</a> (<a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> fd, <a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *data, <a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> len)</td></tr>
<tr class="separator:a23df0f187d94bc56513062032289c488"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Typedef Documentation</h2>
<a id="ac868e938508a529a77cdc81a6765bd0b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac868e938508a529a77cdc81a6765bd0b">&#9670;&nbsp;</a></span>sio_fd_t</h2>

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          <td class="memname">typedef void* <a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">Definition at line <a class="el" href="../../da/dda/sio_8h_source.html#l00048">48</a> of file <a class="el" href="../../da/dda/sio_8h_source.html">sio.h</a>.</p>

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<h2 class="groupheader">Function Documentation</h2>
<a id="a127c33a3c36b7de915a9fe0e1223e063"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a127c33a3c36b7de915a9fe0e1223e063">&#9670;&nbsp;</a></span>sio_open()</h2>

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        <tr>
          <td class="memname"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a> sio_open </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&#160;</td>
          <td class="paramname"><em>devnum</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Opens a serial device for communication.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">devnum</td><td>device number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>handle to serial device if successful, NULL otherwise </dd></dl>

</div>
</div>
<a id="ac5a6563ee5f12459451010139a04a03b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac5a6563ee5f12459451010139a04a03b">&#9670;&nbsp;</a></span>sio_read()</h2>

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        <tr>
          <td class="memname"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> sio_read </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td>
          <td class="paramname"><em>fd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a>&#160;</td>
          <td class="paramname"><em>len</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Reads from the serial device.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">fd</td><td>serial device handle </td></tr>
    <tr><td class="paramname">data</td><td>pointer to data buffer for receiving </td></tr>
    <tr><td class="paramname">len</td><td>maximum length (in bytes) of data to receive </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of bytes actually received - may be 0 if aborted by sio_read_abort</dd></dl>
<dl class="section note"><dt>Note</dt><dd>This function will block until data can be received. The blocking can be cancelled by calling <a class="el" href="../../da/dda/sio_8h.html#aee1b714fc5a4f0fa198537fa7ea48359">sio_read_abort()</a>. </dd></dl>

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<a id="aee1b714fc5a4f0fa198537fa7ea48359"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aee1b714fc5a4f0fa198537fa7ea48359">&#9670;&nbsp;</a></span>sio_read_abort()</h2>

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          <td class="memname">void sio_read_abort </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td>
          <td class="paramname"><em>fd</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Aborts a blocking <a class="el" href="../../da/dda/sio_8h.html#ac5a6563ee5f12459451010139a04a03b">sio_read()</a> call.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">fd</td><td>serial device handle </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a id="a5747f8d8042b712aa5219d5338bf2721"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5747f8d8042b712aa5219d5338bf2721">&#9670;&nbsp;</a></span>sio_recv()</h2>

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          <td class="memname"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> sio_recv </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td>
          <td class="paramname"><em>fd</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Receives a single character from the serial device.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">fd</td><td>serial device handle</td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>This function will block until a character is received. </dd></dl>

</div>
</div>
<a id="a2c60bae2a81c07930ee504308f6a38b2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2c60bae2a81c07930ee504308f6a38b2">&#9670;&nbsp;</a></span>sio_send()</h2>

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          <td class="memname">void sio_send </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&#160;</td>
          <td class="paramname"><em>c</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td>
          <td class="paramname"><em>fd</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Sends a single character to the serial device.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">c</td><td>character to send </td></tr>
    <tr><td class="paramname">fd</td><td>serial device handle</td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>This function will block until the character can be sent. </dd></dl>

</div>
</div>
<a id="a3780ab1928702f82974ee66988220040"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3780ab1928702f82974ee66988220040">&#9670;&nbsp;</a></span>sio_tryread()</h2>

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          <td class="memname"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> sio_tryread </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td>
          <td class="paramname"><em>fd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a>&#160;</td>
          <td class="paramname"><em>len</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Tries to read from the serial device. Same as sio_read but returns immediately if no data is available and never blocks.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">fd</td><td>serial device handle </td></tr>
    <tr><td class="paramname">data</td><td>pointer to data buffer for receiving </td></tr>
    <tr><td class="paramname">len</td><td>maximum length (in bytes) of data to receive </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of bytes actually received </dd></dl>

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<a id="a23df0f187d94bc56513062032289c488"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a23df0f187d94bc56513062032289c488">&#9670;&nbsp;</a></span>sio_write()</h2>

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          <td class="memname"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> sio_write </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../da/dda/sio_8h.html#ac868e938508a529a77cdc81a6765bd0b">sio_fd_t</a>&#160;</td>
          <td class="paramname"><em>fd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a>&#160;</td>
          <td class="paramname"><em>len</em>&#160;</td>
        </tr>
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          <td>)</td>
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<p>Writes to the serial device.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">fd</td><td>serial device handle </td></tr>
    <tr><td class="paramname">data</td><td>pointer to data to send </td></tr>
    <tr><td class="paramname">len</td><td>length (in bytes) of data to send </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of bytes actually sent</dd></dl>
<dl class="section note"><dt>Note</dt><dd>This function will block until all data can be sent. </dd></dl>

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