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<h1>/builddir/build/BUILD/alsa-lib-1.0.17a/src/pcm/pcm_null.c File Reference</h1>PCM Null Plugin Interface. <a href="#_details">More...</a>
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<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__null_8c.html#0298ab6596b3fa5adb880857f4b51401">snd_pcm_null_open</a> (<a class="el" href="group___p_c_m.html#gb5676348e7618b444e28907607660cef">snd_pcm_t</a> **pcmp, const char *name, <a class="el" href="group___p_c_m.html#g854f0966bd0d7248ed3d9e5c293136ed">snd_pcm_stream_t</a> stream, int mode)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a new null PCM. <a href="#0298ab6596b3fa5adb880857f4b51401"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__null_8c.html#1b5fef795479d6b7d9088926d663d10a">_snd_pcm_null_open</a> (<a class="el" href="group___p_c_m.html#gb5676348e7618b444e28907607660cef">snd_pcm_t</a> **pcmp, const char *name, <a class="el" href="group___config.html#gb7dc173feea5bedcd999bba678eb53a7">snd_config_t</a> *root, <a class="el" href="group___config.html#gb7dc173feea5bedcd999bba678eb53a7">snd_config_t</a> *conf, <a class="el" href="group___p_c_m.html#g854f0966bd0d7248ed3d9e5c293136ed">snd_pcm_stream_t</a> stream, int mode)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a new Null PCM. <a href="#1b5fef795479d6b7d9088926d663d10a"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
PCM Null Plugin Interface.
<p>
<dl compact><dt><b>Author:</b></dt><dd>Abramo Bagnara <<a href="mailto:abramo@alsa-project.org">abramo@alsa-project.org</a>> </dd></dl>
<dl compact><dt><b>Date:</b></dt><dd>2000-2001 </dd></dl>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="1b5fef795479d6b7d9088926d663d10a"></a><!-- doxytag: member="pcm_null.c::_snd_pcm_null_open" ref="1b5fef795479d6b7d9088926d663d10a" args="(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)" -->
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<td class="memname">int _snd_pcm_null_open </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#gb5676348e7618b444e28907607660cef">snd_pcm_t</a> ** </td>
<td class="paramname"> <em>pcmp</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___config.html#gb7dc173feea5bedcd999bba678eb53a7">snd_config_t</a> * </td>
<td class="paramname"> <em>root</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___config.html#gb7dc173feea5bedcd999bba678eb53a7">snd_config_t</a> * </td>
<td class="paramname"> <em>conf</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#g854f0966bd0d7248ed3d9e5c293136ed">snd_pcm_stream_t</a> </td>
<td class="paramname"> <em>stream</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>mode</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Creates a new Null PCM.
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<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>pcmp</em> </td><td>Returns created PCM handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>name</em> </td><td>Name of PCM </td></tr>
<tr><td valign="top"></td><td valign="top"><em>root</em> </td><td>Root configuration node </td></tr>
<tr><td valign="top"></td><td valign="top"><em>conf</em> </td><td>Configuration node with Null PCM description </td></tr>
<tr><td valign="top"></td><td valign="top"><em>stream</em> </td><td>Stream type </td></tr>
<tr><td valign="top"></td><td valign="top"><em>mode</em> </td><td>Stream mode </td></tr>
</table>
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<dl compact><dt><b>Return values:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>zero</em> </td><td>on success otherwise a negative error code </td></tr>
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<dl compact><dt><b>Warning:</b></dt><dd>Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future. </dd></dl>
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<a class="anchor" name="0298ab6596b3fa5adb880857f4b51401"></a><!-- doxytag: member="pcm_null.c::snd_pcm_null_open" ref="0298ab6596b3fa5adb880857f4b51401" args="(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode)" -->
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<td class="memname">int snd_pcm_null_open </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#gb5676348e7618b444e28907607660cef">snd_pcm_t</a> ** </td>
<td class="paramname"> <em>pcmp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#g854f0966bd0d7248ed3d9e5c293136ed">snd_pcm_stream_t</a> </td>
<td class="paramname"> <em>stream</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>mode</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
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<div class="memdoc">
<p>
Creates a new null PCM.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>pcmp</em> </td><td>Returns created PCM handle </td></tr>
<tr><td valign="top"></td><td valign="top"><em>name</em> </td><td>Name of PCM </td></tr>
<tr><td valign="top"></td><td valign="top"><em>stream</em> </td><td>Stream type </td></tr>
<tr><td valign="top"></td><td valign="top"><em>mode</em> </td><td>Stream mode </td></tr>
</table>
</dl>
<dl compact><dt><b>Return values:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>zero</em> </td><td>on success otherwise a negative error code </td></tr>
</table>
</dl>
<dl compact><dt><b>Warning:</b></dt><dd>Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future. </dd></dl>
</div>
</div><p>
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