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<h1>Stream Information<br/>
<small>
[<a class="el" href="group___p_c_m.html">PCM Interface</a>]</small>
</h1><table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gac60fd444f9e73bd12bde83b783f9b4f8">snd_pcm_info_alloca</a>(ptr)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">allocate an invalid <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> using standard alloca <a href="#gac60fd444f9e73bd12bde83b783f9b4f8"></a><br/></td></tr>
<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga782831adf8ee2ee52892479ea0222e67">snd_pcm_info_sizeof</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get size of <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> <a href="#ga782831adf8ee2ee52892479ea0222e67"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga2386bb8f334424c1ff2b8854ff29ac0f">snd_pcm_info_malloc</a> (<a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> **ptr)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">allocate an invalid <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> using standard malloc <a href="#ga2386bb8f334424c1ff2b8854ff29ac0f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gaa919792762d0bf606f9fe45872231f28">snd_pcm_info_free</a> (<a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">frees a previously allocated <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> <a href="#gaa919792762d0bf606f9fe45872231f28"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga139884ae6fb3cb5621591f2d6e044a42">snd_pcm_info_copy</a> (<a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *dst, const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *src)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">copy one <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> to another <a href="#ga139884ae6fb3cb5621591f2d6e044a42"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga137b0bb60ad14009b9da04fe53849553">snd_pcm_info_get_device</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get device from a PCM info container. <a href="#ga137b0bb60ad14009b9da04fe53849553"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gaf0e6c1ec0443820d5c14c48ecd1b698e">snd_pcm_info_get_subdevice</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get subdevice from a PCM info container. <a href="#gaf0e6c1ec0443820d5c14c48ecd1b698e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gacf9b5a69f2b0ed9aef5b9b0d2ed61aae">snd_pcm_info_get_stream</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get stream (direction) from a PCM info container. <a href="#gacf9b5a69f2b0ed9aef5b9b0d2ed61aae"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga3a632a14559c1ea0d07b27b0596c4e41">snd_pcm_info_get_card</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get card from a PCM info container. <a href="#ga3a632a14559c1ea0d07b27b0596c4e41"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga4ce080eae74ed95baa79ffb80a91df81">snd_pcm_info_get_id</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get id from a PCM info container. <a href="#ga4ce080eae74ed95baa79ffb80a91df81"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gad48dd79e45631811c297ee7080681bc6">snd_pcm_info_get_name</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get name from a PCM info container. <a href="#gad48dd79e45631811c297ee7080681bc6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gae2ce3c55d4439ae423b854358ff08aa1">snd_pcm_info_get_subdevice_name</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get subdevice name from a PCM info container. <a href="#gae2ce3c55d4439ae423b854358ff08aa1"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#gad0e95dc8a590d8f9915fec237d7a28a5">snd_pcm_class_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gada845e969b0b9c959134f42b98d73c5c">snd_pcm_info_get_class</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get class from a PCM info container. <a href="#gada845e969b0b9c959134f42b98d73c5c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#ga6a164917c35e2216f6e76beff4e4d0cb">snd_pcm_subclass_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga30670ad0d94f4358c3f16cc80ff3ba85">snd_pcm_info_get_subclass</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get subclass from a PCM info container. <a href="#ga30670ad0d94f4358c3f16cc80ff3ba85"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gaeccf5d684a23455aa9fc31f8756eb222">snd_pcm_info_get_subdevices_count</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get subdevices count from a PCM info container. <a href="#gaeccf5d684a23455aa9fc31f8756eb222"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gad78bccdeadd378461073b4e6bfa5272a">snd_pcm_info_get_subdevices_avail</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get available subdevices count from a PCM info container. <a href="#gad78bccdeadd378461073b4e6bfa5272a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="unionsnd__pcm__sync__id__t.html">snd_pcm_sync_id_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga4a46693c8a81912de84f814c3eecd06e">snd_pcm_info_get_sync</a> (const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get hardware synchronization ID from a PCM info container. <a href="#ga4a46693c8a81912de84f814c3eecd06e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#gab9fe6f542c830c516f78ee9124606430">snd_pcm_info_set_device</a> (<a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj, unsigned int val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set wanted device inside a PCM info container (see <a class="el" href="control_8c.html#ac5a9750f9ba7749efddb0d92747255c8" title="Get info about a PCM device.">snd_ctl_pcm_info</a>). <a href="#gab9fe6f542c830c516f78ee9124606430"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga2a1aea3ed02b14de6535f59d2cc80148">snd_pcm_info_set_subdevice</a> (<a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj, unsigned int val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set wanted subdevice inside a PCM info container (see <a class="el" href="control_8c.html#ac5a9750f9ba7749efddb0d92747255c8" title="Get info about a PCM device.">snd_ctl_pcm_info</a>). <a href="#ga2a1aea3ed02b14de6535f59d2cc80148"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___info.html#ga6bd83454c365f212e47f42ee84db06ed">snd_pcm_info_set_stream</a> (<a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> *obj, <a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set wanted stream inside a PCM info container (see <a class="el" href="control_8c.html#ac5a9750f9ba7749efddb0d92747255c8" title="Get info about a PCM device.">snd_ctl_pcm_info</a>). <a href="#ga6bd83454c365f212e47f42ee84db06ed"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>See the <a class="el" href="pcm.html">PCM (digital audio) interface</a> page for more details. </p>
<hr/><h2>Define Documentation</h2>
<a class="anchor" id="gac60fd444f9e73bd12bde83b783f9b4f8"></a><!-- doxytag: member="pcm.h::snd_pcm_info_alloca" ref="gac60fd444f9e73bd12bde83b783f9b4f8" args="(ptr)" -->
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<td class="memname">#define snd_pcm_info_alloca</td>
<td>(</td>
<td class="paramtype">ptr </td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>allocate an invalid <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> using standard alloca </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>ptr</em> </td><td>returned pointer </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ga139884ae6fb3cb5621591f2d6e044a42"></a><!-- doxytag: member="pcm.h::snd_pcm_info_copy" ref="ga139884ae6fb3cb5621591f2d6e044a42" args="(snd_pcm_info_t *dst, const snd_pcm_info_t *src)" -->
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<td class="memname">void snd_pcm_info_copy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>dst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>src</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>copy one <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> to another </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dst</em> </td><td>pointer to destination </td></tr>
<tr><td valign="top"></td><td valign="top"><em>src</em> </td><td>pointer to source </td></tr>
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</dd>
</dl>
</div>
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<a class="anchor" id="gaa919792762d0bf606f9fe45872231f28"></a><!-- doxytag: member="pcm.h::snd_pcm_info_free" ref="gaa919792762d0bf606f9fe45872231f28" args="(snd_pcm_info_t *obj)" -->
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<td class="memname">void snd_pcm_info_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>frees a previously allocated <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>pointer to object to free </td></tr>
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</dd>
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</div>
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<a class="anchor" id="ga3a632a14559c1ea0d07b27b0596c4e41"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_card" ref="ga3a632a14559c1ea0d07b27b0596c4e41" args="(const snd_pcm_info_t *obj)" -->
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<td class="memname">int snd_pcm_info_get_card </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
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<div class="memdoc">
<p>Get card from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>card number otherwise a negative error code if not associable to a card </dd></dl>
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<a class="anchor" id="gada845e969b0b9c959134f42b98d73c5c"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_class" ref="gada845e969b0b9c959134f42b98d73c5c" args="(const snd_pcm_info_t *obj)" -->
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<td class="memname"><a class="el" href="group___p_c_m.html#gad0e95dc8a590d8f9915fec237d7a28a5">snd_pcm_class_t</a> snd_pcm_info_get_class </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
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<div class="memdoc">
<p>Get class from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>class of PCM </dd></dl>
</div>
</div>
<a class="anchor" id="ga137b0bb60ad14009b9da04fe53849553"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_device" ref="ga137b0bb60ad14009b9da04fe53849553" args="(const snd_pcm_info_t *obj)" -->
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<td class="memname">unsigned int snd_pcm_info_get_device </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get device from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>device number </dd></dl>
</div>
</div>
<a class="anchor" id="ga4ce080eae74ed95baa79ffb80a91df81"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_id" ref="ga4ce080eae74ed95baa79ffb80a91df81" args="(const snd_pcm_info_t *obj)" -->
<div class="memitem">
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<table class="memname">
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<td class="memname">const char* snd_pcm_info_get_id </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get id from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>short id of PCM </dd></dl>
</div>
</div>
<a class="anchor" id="gad48dd79e45631811c297ee7080681bc6"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_name" ref="gad48dd79e45631811c297ee7080681bc6" args="(const snd_pcm_info_t *obj)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const char* snd_pcm_info_get_name </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get name from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>name of PCM </dd></dl>
</div>
</div>
<a class="anchor" id="gacf9b5a69f2b0ed9aef5b9b0d2ed61aae"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_stream" ref="gacf9b5a69f2b0ed9aef5b9b0d2ed61aae" args="(const snd_pcm_info_t *obj)" -->
<div class="memitem">
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<td class="memname"><a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> snd_pcm_info_get_stream </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get stream (direction) from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>stream </dd></dl>
</div>
</div>
<a class="anchor" id="ga30670ad0d94f4358c3f16cc80ff3ba85"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_subclass" ref="ga30670ad0d94f4358c3f16cc80ff3ba85" args="(const snd_pcm_info_t *obj)" -->
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<td class="memname"><a class="el" href="group___p_c_m.html#ga6a164917c35e2216f6e76beff4e4d0cb">snd_pcm_subclass_t</a> snd_pcm_info_get_subclass </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get subclass from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>subclass of PCM </dd></dl>
</div>
</div>
<a class="anchor" id="gaf0e6c1ec0443820d5c14c48ecd1b698e"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_subdevice" ref="gaf0e6c1ec0443820d5c14c48ecd1b698e" args="(const snd_pcm_info_t *obj)" -->
<div class="memitem">
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<td class="memname">unsigned int snd_pcm_info_get_subdevice </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get subdevice from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>subdevice number </dd></dl>
</div>
</div>
<a class="anchor" id="gae2ce3c55d4439ae423b854358ff08aa1"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_subdevice_name" ref="gae2ce3c55d4439ae423b854358ff08aa1" args="(const snd_pcm_info_t *obj)" -->
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const char* snd_pcm_info_get_subdevice_name </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get subdevice name from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>name of used PCM subdevice </dd></dl>
</div>
</div>
<a class="anchor" id="gad78bccdeadd378461073b4e6bfa5272a"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_subdevices_avail" ref="gad78bccdeadd378461073b4e6bfa5272a" args="(const snd_pcm_info_t *obj)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">unsigned int snd_pcm_info_get_subdevices_avail </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get available subdevices count from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>available subdevices count of PCM </dd></dl>
</div>
</div>
<a class="anchor" id="gaeccf5d684a23455aa9fc31f8756eb222"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_subdevices_count" ref="gaeccf5d684a23455aa9fc31f8756eb222" args="(const snd_pcm_info_t *obj)" -->
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<table class="memname">
<tr>
<td class="memname">unsigned int snd_pcm_info_get_subdevices_count </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get subdevices count from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>subdevices total count of PCM </dd></dl>
</div>
</div>
<a class="anchor" id="ga4a46693c8a81912de84f814c3eecd06e"></a><!-- doxytag: member="pcm.h::snd_pcm_info_get_sync" ref="ga4a46693c8a81912de84f814c3eecd06e" args="(const snd_pcm_info_t *obj)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="unionsnd__pcm__sync__id__t.html">snd_pcm_sync_id_t</a> snd_pcm_info_get_sync </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get hardware synchronization ID from a PCM info container. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>hardware synchronization ID </dd></dl>
</div>
</div>
<a class="anchor" id="ga2386bb8f334424c1ff2b8854ff29ac0f"></a><!-- doxytag: member="pcm.h::snd_pcm_info_malloc" ref="ga2386bb8f334424c1ff2b8854ff29ac0f" args="(snd_pcm_info_t **ptr)" -->
<div class="memitem">
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<td class="memname">int snd_pcm_info_malloc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> ** </td>
<td class="paramname"> <em>ptr</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>allocate an invalid <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> using standard malloc </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>ptr</em> </td><td>returned pointer </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>0 on success otherwise negative error code </dd></dl>
</div>
</div>
<a class="anchor" id="gab9fe6f542c830c516f78ee9124606430"></a><!-- doxytag: member="pcm.h::snd_pcm_info_set_device" ref="gab9fe6f542c830c516f78ee9124606430" args="(snd_pcm_info_t *obj, unsigned int val)" -->
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<td class="memname">void snd_pcm_info_set_device </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>val</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set wanted device inside a PCM info container (see <a class="el" href="control_8c.html#ac5a9750f9ba7749efddb0d92747255c8" title="Get info about a PCM device.">snd_ctl_pcm_info</a>). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
<tr><td valign="top"></td><td valign="top"><em>val</em> </td><td>Device number </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga6bd83454c365f212e47f42ee84db06ed"></a><!-- doxytag: member="pcm.h::snd_pcm_info_set_stream" ref="ga6bd83454c365f212e47f42ee84db06ed" args="(snd_pcm_info_t *obj, snd_pcm_stream_t val)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">void snd_pcm_info_set_stream </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> </td>
<td class="paramname"> <em>val</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set wanted stream inside a PCM info container (see <a class="el" href="control_8c.html#ac5a9750f9ba7749efddb0d92747255c8" title="Get info about a PCM device.">snd_ctl_pcm_info</a>). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
<tr><td valign="top"></td><td valign="top"><em>val</em> </td><td>Stream </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga2a1aea3ed02b14de6535f59d2cc80148"></a><!-- doxytag: member="pcm.h::snd_pcm_info_set_subdevice" ref="ga2a1aea3ed02b14de6535f59d2cc80148" args="(snd_pcm_info_t *obj, unsigned int val)" -->
<div class="memitem">
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<td class="memname">void snd_pcm_info_set_subdevice </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> * </td>
<td class="paramname"> <em>obj</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>val</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set wanted subdevice inside a PCM info container (see <a class="el" href="control_8c.html#ac5a9750f9ba7749efddb0d92747255c8" title="Get info about a PCM device.">snd_ctl_pcm_info</a>). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>PCM info container </td></tr>
<tr><td valign="top"></td><td valign="top"><em>val</em> </td><td>Subdevice number </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga782831adf8ee2ee52892479ea0222e67"></a><!-- doxytag: member="pcm.h::snd_pcm_info_sizeof" ref="ga782831adf8ee2ee52892479ea0222e67" args="(void)" -->
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<td class="memname">size_t snd_pcm_info_sizeof </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>get size of <a class="el" href="group___p_c_m.html#ga7dae86a468480ce8eb1c485446c51664">snd_pcm_info_t</a> </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>size in bytes </dd></dl>
</div>
</div>
</div>
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