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<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>ALSA project - the C library reference: External Filter plugin SDK</title>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<h1>External Filter plugin SDK<br>
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[<a class="el" href="group___plugin___s_d_k.html">External PCM plugin SDK</a>]</small>
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</h1><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Data Structures</h2></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug</a></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html">snd_pcm_extplug_callback</a></td></tr>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g4854f28f6805a788cd2a117e82224946">SND_PCM_EXTPLUG_VERSION_MAJOR</a> 1</td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g5030132784eea83ffe1a58b21efc5934">SND_PCM_EXTPLUG_VERSION_MINOR</a> 0</td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#gd003584c8ec5dd20e79cd1c565c1d117">SND_PCM_EXTPLUG_VERSION_TINY</a> 1</td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#gde3e571a17c909eac1e58a1bdb4603a3">SND_PCM_EXTPLUG_VERSION</a></td></tr>
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<tr><td colspan="2"><br><h2>Typedefs</h2></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">typedef <a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g1aefaedf9d1cba412f1ebfb884f05b45">snd_pcm_extplug_t</a></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">typedef <a class="el" href="structsnd__pcm__extplug__callback.html">snd_pcm_extplug_callback</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g9d8340212da6e371e00be36403bf6071">snd_pcm_extplug_callback_t</a></td></tr>
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<tr><td colspan="2"><br><h2>Enumerations</h2></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">enum </td><td class="memItemRight" valign="bottom">{ <a class="el" href="group___p_c_m___ext_plug.html#gg1af138ee919beeb88a50aa27b42124b71d5379b0579703933f070b7c3cb845f5">SND_PCM_EXTPLUG_HW_FORMAT</a>,
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<a class="el" href="group___p_c_m___ext_plug.html#gg1af138ee919beeb88a50aa27b42124b711867774d63675bb1fe3ecd1933ebed0">SND_PCM_EXTPLUG_HW_CHANNELS</a>,
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<a class="el" href="group___p_c_m___ext_plug.html#gg1af138ee919beeb88a50aa27b42124b79c1195746498d1a75a6476950d147213">SND_PCM_EXTPLUG_HW_PARAMS</a>
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<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g57892d908bc602543ad645fcf278d4bc">snd_pcm_extplug_create</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, 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> *slave_conf, <a class="el" href="group___p_c_m.html#g854f0966bd0d7248ed3d9e5c293136ed">snd_pcm_stream_t</a> stream, int mode)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Create an extplug instance. <a href="#g57892d908bc602543ad645fcf278d4bc"></a><br></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g73cde6bb5aafcbdc89a79897c9d9535c">snd_pcm_extplug_delete</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Delete the extplug instance. <a href="#g73cde6bb5aafcbdc89a79897c9d9535c"></a><br></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#ga658989357015fadc3776038f9186afc">snd_pcm_extplug_params_reset</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Reset extplug parameters. <a href="#ga658989357015fadc3776038f9186afc"></a><br></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#gcb52f3c06dc627450d69c7aa05f8508e">snd_pcm_extplug_set_param_list</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *extplug, int type, unsigned int num_list, const unsigned int *list)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Set master parameter as the list. <a href="#gcb52f3c06dc627450d69c7aa05f8508e"></a><br></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g687a2749106b0be206e9b4ec62df009d">snd_pcm_extplug_set_param_minmax</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *extplug, int type, unsigned int min, unsigned int max)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Set master parameter as the min/max values. <a href="#g687a2749106b0be206e9b4ec62df009d"></a><br></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g84a3f300cf1193988f416fafb7c88258">snd_pcm_extplug_set_slave_param_list</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *extplug, int type, unsigned int num_list, const unsigned int *list)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Set slave parameter as the list. <a href="#g84a3f300cf1193988f416fafb7c88258"></a><br></td></tr>
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<tr><td class="memItemLeft" align="right" nowrap="nowrap" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___ext_plug.html#g92adb0c7061c59fb1034ba57a2cb08f9">snd_pcm_extplug_set_slave_param_minmax</a> (<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *extplug, int type, unsigned int min, unsigned int max)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Set slave parameter as the min/max values. <a href="#g92adb0c7061c59fb1034ba57a2cb08f9"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
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See the <a class="el" href="pcm.html">PCM (digital audio) interface</a> page for more details. <hr><h2>Define Documentation</h2>
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<a class="anchor" name="gde3e571a17c909eac1e58a1bdb4603a3"></a><!-- doxytag: member="pcm_extplug.h::SND_PCM_EXTPLUG_VERSION" ref="gde3e571a17c909eac1e58a1bdb4603a3" args="" -->
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<div class="memproto">
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<td class="memname">#define SND_PCM_EXTPLUG_VERSION </td>
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<b>Value:</b></p><div class="fragment"><pre class="fragment">((<a class="code" href="group___p_c_m___ext_plug.html#g4854f28f6805a788cd2a117e82224946">SND_PCM_EXTPLUG_VERSION_MAJOR</a><<16) |\<br> (<a class="code" href="group___p_c_m___ext_plug.html#g5030132784eea83ffe1a58b21efc5934">SND_PCM_EXTPLUG_VERSION_MINOR</a><<8) |\<br> (<a class="code" href="group___p_c_m___ext_plug.html#gd003584c8ec5dd20e79cd1c565c1d117">SND_PCM_EXTPLUG_VERSION_TINY</a>))<br></pre></div>Filter-plugin protocol version
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<a class="anchor" name="g4854f28f6805a788cd2a117e82224946"></a><!-- doxytag: member="pcm_extplug.h::SND_PCM_EXTPLUG_VERSION_MAJOR" ref="g4854f28f6805a788cd2a117e82224946" args="" -->
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</p><div class="memitem">
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<td class="memname">#define SND_PCM_EXTPLUG_VERSION_MAJOR 1 </td>
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Protocol major version
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<a class="anchor" name="g5030132784eea83ffe1a58b21efc5934"></a><!-- doxytag: member="pcm_extplug.h::SND_PCM_EXTPLUG_VERSION_MINOR" ref="g5030132784eea83ffe1a58b21efc5934" args="" -->
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</p><div class="memitem">
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<div class="memproto">
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<td class="memname">#define SND_PCM_EXTPLUG_VERSION_MINOR 0 </td>
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Protocol minor version
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<a class="anchor" name="gd003584c8ec5dd20e79cd1c565c1d117"></a><!-- doxytag: member="pcm_extplug.h::SND_PCM_EXTPLUG_VERSION_TINY" ref="gd003584c8ec5dd20e79cd1c565c1d117" args="" -->
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<td class="memname">#define SND_PCM_EXTPLUG_VERSION_TINY 1 </td>
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Protocol tiny version
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</p><hr><h2>Typedef Documentation</h2>
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<a class="anchor" name="g9d8340212da6e371e00be36403bf6071"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_callback_t" ref="g9d8340212da6e371e00be36403bf6071" args="" -->
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<td class="memname">typedef struct <a class="el" href="structsnd__pcm__extplug__callback.html">snd_pcm_extplug_callback</a> <a class="el" href="structsnd__pcm__extplug__callback.html">snd_pcm_extplug_callback_t</a> </td>
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Callback table of extplug
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<a class="anchor" name="g1aefaedf9d1cba412f1ebfb884f05b45"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_t" ref="g1aefaedf9d1cba412f1ebfb884f05b45" args="" -->
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<td class="memname">typedef struct <a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug</a> <a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> </td>
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Handle of external filter plugin
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</p><hr><h2>Enumeration Type Documentation</h2>
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<a class="anchor" name="g1af138ee919beeb88a50aa27b42124b7"></a><!-- doxytag: member="pcm_extplug.h::@5" ref="g1af138ee919beeb88a50aa27b42124b7" args="" -->
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<td class="memname">anonymous enum </td>
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hw constraints for extplug </p><dl compact="compact"><dt><b>Enumerator: </b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><em><a class="anchor" name="gg1af138ee919beeb88a50aa27b42124b71d5379b0579703933f070b7c3cb845f5"></a><!-- doxytag: member="SND_PCM_EXTPLUG_HW_FORMAT" ref="gg1af138ee919beeb88a50aa27b42124b71d5379b0579703933f070b7c3cb845f5" args="" -->SND_PCM_EXTPLUG_HW_FORMAT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="gg1af138ee919beeb88a50aa27b42124b711867774d63675bb1fe3ecd1933ebed0"></a><!-- doxytag: member="SND_PCM_EXTPLUG_HW_CHANNELS" ref="gg1af138ee919beeb88a50aa27b42124b711867774d63675bb1fe3ecd1933ebed0" args="" -->SND_PCM_EXTPLUG_HW_CHANNELS</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="gg1af138ee919beeb88a50aa27b42124b79c1195746498d1a75a6476950d147213"></a><!-- doxytag: member="SND_PCM_EXTPLUG_HW_PARAMS" ref="gg1af138ee919beeb88a50aa27b42124b79c1195746498d1a75a6476950d147213" args="" -->SND_PCM_EXTPLUG_HW_PARAMS</em> </td><td>
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max number of hw constraints </td></tr>
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</p><hr><h2>Function Documentation</h2>
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<a class="anchor" name="g57892d908bc602543ad645fcf278d4bc"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_create" ref="g57892d908bc602543ad645fcf278d4bc" args="(snd_pcm_extplug_t *ext, const char *name, snd_config_t *root, snd_config_t *slave_conf, snd_pcm_stream_t stream, int mode)" -->
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<td class="memname">int snd_pcm_extplug_create </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">const char * </td>
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<td class="paramname"> <em>name</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype"><a class="el" href="group___config.html#gb7dc173feea5bedcd999bba678eb53a7">snd_config_t</a> * </td>
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<td class="paramname"> <em>root</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype"><a class="el" href="group___config.html#gb7dc173feea5bedcd999bba678eb53a7">snd_config_t</a> * </td>
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<td class="paramname"> <em>slave_conf</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype"><a class="el" href="group___p_c_m.html#g854f0966bd0d7248ed3d9e5c293136ed">snd_pcm_stream_t</a> </td>
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<td class="paramname"> <em>stream</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>mode</em></td><td> </td>
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</td><td width="100%"><br>
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Create an extplug instance.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>name</em> </td><td>name of the PCM </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>root</em> </td><td>configuration tree root </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>slave_conf</em> </td><td>slave configuration root </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>stream</em> </td><td>stream direction </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>mode</em> </td><td>PCM open mode </td></tr>
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<dl class="return" compact="compact"><dt><b>Returns:</b></dt><dd>0 if successful, or a negative error code</dd></dl>Creates
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the extplug instance based on the given handle. The slave_conf argument
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is mandatory, and usually taken from the config tree of the PCM plugin
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as "slave" config value. name, root, stream and mode arguments are the
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values used for opening the PCM.<p>
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The callback is the mandatory field of extplug handle. At least, start,
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stop and pointer callbacks must be set before calling this function. </p></div>
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<a class="anchor" name="g73cde6bb5aafcbdc89a79897c9d9535c"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_delete" ref="g73cde6bb5aafcbdc89a79897c9d9535c" args="(snd_pcm_extplug_t *ext)" -->
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<td class="memname">int snd_pcm_extplug_delete </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em> </td>
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<td> ) </td>
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<td width="100%"><br>
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Delete the extplug instance.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle to delete </td></tr>
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<dl class="return" compact="compact"><dt><b>Returns:</b></dt><dd>0 if successful, or a negative error code</dd></dl>
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The destructor of extplug instance. Closes the PCM and deletes the associated resources.
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<a class="anchor" name="ga658989357015fadc3776038f9186afc"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_params_reset" ref="ga658989357015fadc3776038f9186afc" args="(snd_pcm_extplug_t *ext)" -->
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</p><div class="memitem">
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<td class="memname">void snd_pcm_extplug_params_reset </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em> </td>
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<td> ) </td>
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<td width="100%"><br>
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Reset extplug parameters.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle</td></tr>
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Resets the all parameters for the given extplug handle.
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<a class="anchor" name="gcb52f3c06dc627450d69c7aa05f8508e"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_set_param_list" ref="gcb52f3c06dc627450d69c7aa05f8508e" args="(snd_pcm_extplug_t *extplug, int type, unsigned int num_list, const unsigned int *list)" -->
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</p><div class="memitem">
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<td class="memname">int snd_pcm_extplug_set_param_list </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>type</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">unsigned int </td>
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<td class="paramname"> <em>num_list</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">const unsigned int * </td>
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<td class="paramname"> <em>list</em></td><td> </td>
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</td><td width="100%"><br>
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Set master parameter as the list.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>type</em> </td><td>parameter type </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>num_list</em> </td><td>number of available values </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>list</em> </td><td>the list of available values </td></tr>
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<dl class="return" compact="compact"><dt><b>Returns:</b></dt><dd>0 if successful, or a negative error code</dd></dl>Sets
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the master parameter as the list. The available values of the given
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parameter type of this PCM (as input) is restricted to the ones of the
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<a class="anchor" name="g687a2749106b0be206e9b4ec62df009d"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_set_param_minmax" ref="g687a2749106b0be206e9b4ec62df009d" args="(snd_pcm_extplug_t *extplug, int type, unsigned int min, unsigned int max)" -->
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</p><div class="memitem">
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<div class="memproto">
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<td class="memname">int snd_pcm_extplug_set_param_minmax </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>type</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">unsigned int </td>
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<td class="paramname"> <em>min</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">unsigned int </td>
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<td class="paramname"> <em>max</em></td><td> </td>
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</td><td width="100%"><br>
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Set master parameter as the min/max values.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>type</em> </td><td>parameter type </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>min</em> </td><td>the minimum value </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>max</em> </td><td>the maximum value </td></tr>
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<dl class="return" compact="compact"><dt><b>Returns:</b></dt><dd>0 if successful, or a negative error code</dd></dl>Sets
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the master parameter as the min/max values. The available values of the
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given parameter type of this PCM (as input) is restricted between the
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given minimum and maximum values. </div>
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<a class="anchor" name="g84a3f300cf1193988f416fafb7c88258"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_set_slave_param_list" ref="g84a3f300cf1193988f416fafb7c88258" args="(snd_pcm_extplug_t *extplug, int type, unsigned int num_list, const unsigned int *list)" -->
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</p><div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">int snd_pcm_extplug_set_slave_param_list </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>type</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">unsigned int </td>
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<td class="paramname"> <em>num_list</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">const unsigned int * </td>
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<td class="paramname"> <em>list</em></td><td> </td>
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</td><td width="100%"><br>
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Set slave parameter as the list.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>type</em> </td><td>parameter type </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>num_list</em> </td><td>number of available values </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>list</em> </td><td>the list of available values </td></tr>
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<dl class="return" compact="compact"><dt><b>Returns:</b></dt><dd>0 if successful, or a negative error code</dd></dl>Sets
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the slave parameter as the list. The available values of the given
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parameter type of the slave PCM is restricted to the ones of the given
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<a class="anchor" name="g92adb0c7061c59fb1034ba57a2cb08f9"></a><!-- doxytag: member="pcm_extplug.h::snd_pcm_extplug_set_slave_param_minmax" ref="g92adb0c7061c59fb1034ba57a2cb08f9" args="(snd_pcm_extplug_t *extplug, int type, unsigned int min, unsigned int max)" -->
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</p><div class="memitem">
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<div class="memproto">
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<td class="memname">int snd_pcm_extplug_set_slave_param_minmax </td>
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<td class="paramtype"><a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> * </td>
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<td class="paramname"> <em>extplug</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>type</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">unsigned int </td>
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<td class="paramname"> <em>min</em>, </td>
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<td class="paramkey"><br>
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<td class="paramtype">unsigned int </td>
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<td class="paramname"> <em>max</em></td><td> </td>
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</td><td width="100%"><br>
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Set slave parameter as the min/max values.
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</p><dl compact="compact"><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellpadding="0" cellspacing="2">
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<tbody><tr><td valign="top"><br>
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</td><td valign="top"><em>extplug</em> </td><td>the extplug handle </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>type</em> </td><td>parameter type </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>min</em> </td><td>the minimum value </td></tr>
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<tr><td valign="top"><br>
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</td><td valign="top"><em>max</em> </td><td>the maximum value </td></tr>
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<dl class="return" compact="compact"><dt><b>Returns:</b></dt><dd>0 if successful, or a negative error code</dd></dl>Sets
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the slave parameter as the min/max values. The available values of the
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given parameter type of the slave PCM is restricted between the given
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minimum and maximum values. </div>
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</p><hr size="1"><address style=""><small>Generated on Wed Sep 9 14:37:09 2009 for ALSA project - the C library reference by
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
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