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<div class="headertitle"> <div class="title">pcm_hooks.c File Reference<div class="ingroups"><a class="el" href="group___p_c_m___hook.html">Hook Extension</a></div></div> </div> </div><!--header--> <div class="contents"> <p>PCM Hook Interface. <a href="#details">More...</a></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:a0355f8ca87a7361b1c3fdd36baf05175"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__hooks_8c.html#a0355f8ca87a7361b1c3fdd36baf05175">snd_pcm_hooks_open</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> **pcmp, const char *name, <a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *slave, int close_slave)</td></tr> <tr class="memdesc:a0355f8ca87a7361b1c3fdd36baf05175"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new hooks PCM. <a href="#a0355f8ca87a7361b1c3fdd36baf05175">More...</a><br/></td></tr> <tr class="separator:a0355f8ca87a7361b1c3fdd36baf05175"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a4d7e604b82a739945aefde32395bea24"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__hooks_8c.html#a4d7e604b82a739945aefde32395bea24">_snd_pcm_hooks_open</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> **pcmp, const char *name, <a class="el" href="group___config.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *root, <a class="el" href="group___config.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *conf, <a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> stream, int mode)</td></tr> <tr class="memdesc:a4d7e604b82a739945aefde32395bea24"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new hooks PCM. <a href="#a4d7e604b82a739945aefde32395bea24">More...</a><br/></td></tr> <tr class="separator:a4d7e604b82a739945aefde32395bea24"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacaec88e4b6cc2a45e7a805487acd64ed"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___hook.html#gacaec88e4b6cc2a45e7a805487acd64ed">snd_pcm_hook_get_pcm</a> (<a class="el" href="group___p_c_m___hook.html#gae6b33860eeaf4eca00bdbef9383c1911">snd_pcm_hook_t</a> *hook)</td></tr> <tr class="memdesc:gacaec88e4b6cc2a45e7a805487acd64ed"><td class="mdescLeft"> </td><td class="mdescRight">Get PCM handle for a PCM hook. <a href="group___p_c_m___hook.html#gacaec88e4b6cc2a45e7a805487acd64ed">More...</a><br/></td></tr> <tr class="separator:gacaec88e4b6cc2a45e7a805487acd64ed"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga1eb467cd5ab11817edc2ed7df3608019"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___hook.html#ga1eb467cd5ab11817edc2ed7df3608019">snd_pcm_hook_get_private</a> (<a class="el" href="group___p_c_m___hook.html#gae6b33860eeaf4eca00bdbef9383c1911">snd_pcm_hook_t</a> *hook)</td></tr> <tr class="memdesc:ga1eb467cd5ab11817edc2ed7df3608019"><td class="mdescLeft"> </td><td class="mdescRight">Get callback function private data for a PCM hook. <a href="group___p_c_m___hook.html#ga1eb467cd5ab11817edc2ed7df3608019">More...</a><br/></td></tr> <tr class="separator:ga1eb467cd5ab11817edc2ed7df3608019"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga6930df3b750b3f62dee6846fb3f6a576"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___hook.html#ga6930df3b750b3f62dee6846fb3f6a576">snd_pcm_hook_set_private</a> (<a class="el" href="group___p_c_m___hook.html#gae6b33860eeaf4eca00bdbef9383c1911">snd_pcm_hook_t</a> *hook, void *private_data)</td></tr> <tr class="memdesc:ga6930df3b750b3f62dee6846fb3f6a576"><td class="mdescLeft"> </td><td class="mdescRight">Set callback function private data for a PCM hook. <a href="group___p_c_m___hook.html#ga6930df3b750b3f62dee6846fb3f6a576">More...</a><br/></td></tr> <tr class="separator:ga6930df3b750b3f62dee6846fb3f6a576"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga89eed2fdcda68c1efae9180a3794d5ef"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___hook.html#ga89eed2fdcda68c1efae9180a3794d5ef">snd_pcm_hook_add</a> (<a class="el" href="group___p_c_m___hook.html#gae6b33860eeaf4eca00bdbef9383c1911">snd_pcm_hook_t</a> **hookp, <a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm, <a class="el" href="group___p_c_m___hook.html#ga57b6ba407d293017e116fa1b462a2411">snd_pcm_hook_type_t</a> type, <a class="el" href="group___p_c_m___hook.html#gaff0efa33d6ffbe1df2492ad0d30df309">snd_pcm_hook_func_t</a> func, void *private_data)</td></tr> <tr class="memdesc:ga89eed2fdcda68c1efae9180a3794d5ef"><td class="mdescLeft"> </td><td class="mdescRight">Add a PCM hook at end of hooks chain. <a href="group___p_c_m___hook.html#ga89eed2fdcda68c1efae9180a3794d5ef">More...</a><br/></td></tr> <tr class="separator:ga89eed2fdcda68c1efae9180a3794d5ef"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga4c59ad440d2479f957b477b26b90e4b1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___hook.html#ga4c59ad440d2479f957b477b26b90e4b1">snd_pcm_hook_remove</a> (<a class="el" href="group___p_c_m___hook.html#gae6b33860eeaf4eca00bdbef9383c1911">snd_pcm_hook_t</a> *hook)</td></tr> <tr class="memdesc:ga4c59ad440d2479f957b477b26b90e4b1"><td class="mdescLeft"> </td><td class="mdescRight">Remove a PCM hook. <a href="group___p_c_m___hook.html#ga4c59ad440d2479f957b477b26b90e4b1">More...</a><br/></td></tr> <tr class="separator:ga4c59ad440d2479f957b477b26b90e4b1"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:abfd89c986184f010df8646b46e623490"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__hooks_8c.html#abfd89c986184f010df8646b46e623490">_snd_pcm_hook_ctl_elems_install</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm, <a class="el" href="group___config.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *conf)</td></tr> <tr class="memdesc:abfd89c986184f010df8646b46e623490"><td class="mdescLeft"> </td><td class="mdescRight">Install CTL settings using hardware associated with PCM handle. <a href="#abfd89c986184f010df8646b46e623490">More...</a><br/></td></tr> <tr class="separator:abfd89c986184f010df8646b46e623490"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>PCM Hook Interface. </p> <dl class="section author"><dt>Author</dt><dd>Abramo Bagnara <a href="#" onclick="location.href='mai'+'lto:'+'abr'+'am'+'o@a'+'ls'+'a-p'+'ro'+'jec'+'t.'+'org'; return false;">abram<span style="display: none;">.nosp@m.</span>o@al<span style="display: none;">.nosp@m.</span>sa-pr<span style="display: none;">.nosp@m.</span>ojec<span style="display: none;">.nosp@m.</span>t.org</a> </dd> <dd> Jaroslav Kysela <a href="#" onclick="location.href='mai'+'lto:'+'per'+'ex'+'@pe'+'re'+'x.c'+'z'; return false;">perex<span style="display: none;">.nosp@m.</span>@per<span style="display: none;">.nosp@m.</span>ex.cz</a> </dd></dl> <dl class="section date"><dt>Date</dt><dd>2000-2001 </dd></dl> </div><h2 class="groupheader">Function Documentation</h2> <a class="anchor" id="abfd89c986184f010df8646b46e623490"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int _snd_pcm_hook_ctl_elems_install </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> * </td> <td class="paramname"><em>pcm</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___config.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td> <td class="paramname"><em>conf</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Install CTL settings using hardware associated with PCM handle. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">pcm</td><td>PCM handle </td></tr> <tr><td class="paramname">conf</td><td>Configuration node with CTL settings </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>zero on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="a4d7e604b82a739945aefde32395bea24"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int _snd_pcm_hooks_open </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">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___config.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td> <td class="paramname"><em>root</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___config.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td> <td class="paramname"><em>conf</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>stream</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>mode</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Creates a new hooks PCM. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">pcmp</td><td>Returns created PCM handle </td></tr> <tr><td class="paramname">name</td><td>Name of PCM </td></tr> <tr><td class="paramname">root</td><td>Root configuration node </td></tr> <tr><td class="paramname">conf</td><td>Configuration node with hooks PCM description </td></tr> <tr><td class="paramname">stream</td><td>PCM Stream </td></tr> <tr><td class="paramname">mode</td><td>PCM Mode </td></tr> </table> </dd> </dl> <dl class="retval"><dt>Return values</dt><dd> <table class="retval"> <tr><td class="paramname">zero</td><td>on success otherwise a negative error code </td></tr> </table> </dd> </dl> <dl class="section warning"><dt>Warning</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> <a class="anchor" id="a0355f8ca87a7361b1c3fdd36baf05175"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_pcm_hooks_open </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">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#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> * </td> <td class="paramname"><em>slave</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>close_slave</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Creates a new hooks PCM. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">pcmp</td><td>Returns created PCM handle </td></tr> <tr><td class="paramname">name</td><td>Name of PCM </td></tr> <tr><td class="paramname">slave</td><td>Slave PCM </td></tr> <tr><td class="paramname">close_slave</td><td>If set, slave PCM handle is closed when hooks PCM is closed </td></tr> </table> </dd> </dl> <dl class="retval"><dt>Return values</dt><dd> <table class="retval"> <tr><td class="paramname">zero</td><td>on success otherwise a negative error code </td></tr> </table> </dd> </dl> <dl class="section warning"><dt>Warning</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> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.5 </small></address> </body> </html>