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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="title">snd_ctl_ext_callback_t Struct Reference<div class="ingroups"><a class="el" href="group___ctl_plugin___s_d_k.html">External Control Plugin SDK</a></div></div> </div>
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Data Fields</h2></td></tr>
<tr class="memitem:ad61ac2d50057ede7b363a385979010fb"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#ad61ac2d50057ede7b363a385979010fb">close</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext)</td></tr>
<tr class="separator:ad61ac2d50057ede7b363a385979010fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab43cecb31b9bd2fb2d87ebdcff67980a"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#ab43cecb31b9bd2fb2d87ebdcff67980a">elem_count</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext)</td></tr>
<tr class="separator:ab43cecb31b9bd2fb2d87ebdcff67980a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a47d137dffe0f0ad99313785bc6abf6d1"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a47d137dffe0f0ad99313785bc6abf6d1">elem_list</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, unsigned int offset, <a class="el" href="group___control.html#gad6c3746f1925bfec6a4fd0e913430e55">snd_ctl_elem_id_t</a> *id)</td></tr>
<tr class="separator:a47d137dffe0f0ad99313785bc6abf6d1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9219dbb614782cb8d92f6d5632ef55e2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a9219dbb614782cb8d92f6d5632ef55e2">find_elem</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, const <a class="el" href="group___control.html#gad6c3746f1925bfec6a4fd0e913430e55">snd_ctl_elem_id_t</a> *id)</td></tr>
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<tr class="memitem:a822a8437aeb32b4ec2413c08a3502fde"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a822a8437aeb32b4ec2413c08a3502fde">free_key</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key)</td></tr>
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<tr class="memitem:add5650b201dc8edbc3eb14111d9bd389"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#add5650b201dc8edbc3eb14111d9bd389">get_attribute</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int *<a class="el" href="ump__msg_8h.html#ad44b615021ed3ccb734fcaf583ef4a03">type</a>, unsigned int *acc, unsigned int *count)</td></tr>
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<tr class="memitem:a3c537dcf813d6a0c8cd7efc92cbaf417"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a3c537dcf813d6a0c8cd7efc92cbaf417">get_integer_info</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, long *imin, long *imax, long *istep)</td></tr>
<tr class="separator:a3c537dcf813d6a0c8cd7efc92cbaf417"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aad994483d97828f3d6941a70f46f46c2"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#aad994483d97828f3d6941a70f46f46c2">get_integer64_info</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int64_t *imin, int64_t *imax, int64_t *istep)</td></tr>
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<tr class="memitem:adbebb8e8d3a2c8325bfb71736acdfa63"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#adbebb8e8d3a2c8325bfb71736acdfa63">get_enumerated_info</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int *items)</td></tr>
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<tr class="memitem:a2b0c9d3df2ec114369f099a479c67d24"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a2b0c9d3df2ec114369f099a479c67d24">get_enumerated_name</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int item, char *name, size_t name_max_len)</td></tr>
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<tr class="memitem:a65328da675e4c1ad959bea026109c313"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a65328da675e4c1ad959bea026109c313">read_integer</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, long *value)</td></tr>
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<tr class="memitem:a531baab0b857e3c0fcea7641a9a107fb"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a531baab0b857e3c0fcea7641a9a107fb">read_integer64</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int64_t *value)</td></tr>
<tr class="separator:a531baab0b857e3c0fcea7641a9a107fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a56e661ca05e9db6f0340d23673651d5c"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a56e661ca05e9db6f0340d23673651d5c">read_enumerated</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int *items)</td></tr>
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<tr class="memitem:aeeafda4a363eeb124ab21f7663cc804d"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#aeeafda4a363eeb124ab21f7663cc804d">read_bytes</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned char *<a class="el" href="ump__msg_8h.html#a1e43bf7d608e87228b625cca2c04d641">data</a>, size_t max_bytes)</td></tr>
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<tr class="memitem:a95de209ca2f456797ddbba4cdf5b7bd0"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a95de209ca2f456797ddbba4cdf5b7bd0">read_iec958</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, <a class="el" href="structsnd__aes__iec958__t.html">snd_aes_iec958_t</a> *iec958)</td></tr>
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<tr class="memitem:a7313060836f8d45cf31a528ec2d8a6d0"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a7313060836f8d45cf31a528ec2d8a6d0">write_integer</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, long *value)</td></tr>
<tr class="separator:a7313060836f8d45cf31a528ec2d8a6d0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3067fb89e0e4b71b7c0c9d3ec1cde0f7"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a3067fb89e0e4b71b7c0c9d3ec1cde0f7">write_integer64</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int64_t *value)</td></tr>
<tr class="separator:a3067fb89e0e4b71b7c0c9d3ec1cde0f7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9c42eb6739a90477b7b3775b4972268b"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a9c42eb6739a90477b7b3775b4972268b">write_enumerated</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int *items)</td></tr>
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<tr class="memitem:a844ce4698c73bb316bdbde1554353e4a"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a844ce4698c73bb316bdbde1554353e4a">write_bytes</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned char *<a class="el" href="ump__msg_8h.html#a1e43bf7d608e87228b625cca2c04d641">data</a>, size_t max_bytes)</td></tr>
<tr class="separator:a844ce4698c73bb316bdbde1554353e4a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af031bf7a362a9fde9e622be0d36bb9f3"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#af031bf7a362a9fde9e622be0d36bb9f3">write_iec958</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, <a class="el" href="structsnd__aes__iec958__t.html">snd_aes_iec958_t</a> *iec958)</td></tr>
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<tr class="memitem:a7669a306b86bfe1df7502e195688b855"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a7669a306b86bfe1df7502e195688b855">subscribe_events</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, int subscribe)</td></tr>
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<tr class="memitem:ac99b6d92e4ca9c8e9115e38da0814bf6"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#ac99b6d92e4ca9c8e9115e38da0814bf6">read_event</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___control.html#gad6c3746f1925bfec6a4fd0e913430e55">snd_ctl_elem_id_t</a> *id, unsigned int *event_mask)</td></tr>
<tr class="separator:ac99b6d92e4ca9c8e9115e38da0814bf6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a89619794442bb2582d4921753de3a344"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a89619794442bb2582d4921753de3a344">poll_descriptors_count</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext)</td></tr>
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<tr class="memitem:ae977e058fc11d25ba1a0dea4ebdd91b2"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#ae977e058fc11d25ba1a0dea4ebdd91b2">poll_descriptors</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, struct pollfd *pfds, unsigned int space)</td></tr>
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<tr class="memitem:a03a4c55c5484584d06c263a08cbc0e26"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html#a03a4c55c5484584d06c263a08cbc0e26">poll_revents</a> )(<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)</td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Callback table of ext.</p>
<p>Callback table of control ext </p>
</div><h2 class="groupheader">Field Documentation</h2>
<a id="ad61ac2d50057ede7b363a385979010fb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad61ac2d50057ede7b363a385979010fb">◆ </a></span>close</h2>
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<td class="memname">void(* snd_ctl_ext_callback_t::close) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext)</td>
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<p>close the control handle; optional </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab43cecb31b9bd2fb2d87ebdcff67980a">◆ </a></span>elem_count</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::elem_count) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext)</td>
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<p>return the total number of elements; required </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a47d137dffe0f0ad99313785bc6abf6d1">◆ </a></span>elem_list</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::elem_list) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, unsigned int offset, <a class="el" href="group___control.html#gad6c3746f1925bfec6a4fd0e913430e55">snd_ctl_elem_id_t</a> *id)</td>
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<p>return the element id of the given offset (array index); required </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9219dbb614782cb8d92f6d5632ef55e2">◆ </a></span>find_elem</h2>
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<td class="memname"><a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a>(* snd_ctl_ext_callback_t::find_elem) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, const <a class="el" href="group___control.html#gad6c3746f1925bfec6a4fd0e913430e55">snd_ctl_elem_id_t</a> *id)</td>
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<p>convert the element id to a search key; required </p>
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<a id="a822a8437aeb32b4ec2413c08a3502fde"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a822a8437aeb32b4ec2413c08a3502fde">◆ </a></span>free_key</h2>
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<td class="memname">void(* snd_ctl_ext_callback_t::free_key) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key)</td>
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<p>the destructor of the key; optional </p>
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<h2 class="memtitle"><span class="permalink"><a href="#add5650b201dc8edbc3eb14111d9bd389">◆ </a></span>get_attribute</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::get_attribute) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int *<a class="el" href="ump__msg_8h.html#ad44b615021ed3ccb734fcaf583ef4a03">type</a>, unsigned int *acc, unsigned int *count)</td>
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<p>get the attribute of the element; required </p>
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<h2 class="memtitle"><span class="permalink"><a href="#adbebb8e8d3a2c8325bfb71736acdfa63">◆ </a></span>get_enumerated_info</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::get_enumerated_info) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int *items)</td>
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<p>get the element information of enumerated type </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2b0c9d3df2ec114369f099a479c67d24">◆ </a></span>get_enumerated_name</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::get_enumerated_name) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int item, char *name, size_t name_max_len)</td>
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<p>get the name of the enumerated item </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aad994483d97828f3d6941a70f46f46c2">◆ </a></span>get_integer64_info</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::get_integer64_info) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int64_t *imin, int64_t *imax, int64_t *istep)</td>
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<p>get the element information of integer64 type </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3c537dcf813d6a0c8cd7efc92cbaf417">◆ </a></span>get_integer_info</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::get_integer_info) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, long *imin, long *imax, long *istep)</td>
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<p>get the element information of integer type </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae977e058fc11d25ba1a0dea4ebdd91b2">◆ </a></span>poll_descriptors</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::poll_descriptors) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, struct pollfd *pfds, unsigned int space)</td>
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<p>fill the poll descriptors; optional </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a89619794442bb2582d4921753de3a344">◆ </a></span>poll_descriptors_count</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::poll_descriptors_count) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext)</td>
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<p>return the number of poll descriptors; optional </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a03a4c55c5484584d06c263a08cbc0e26">◆ </a></span>poll_revents</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::poll_revents) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)</td>
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<p>mangle the revents of poll descriptors </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aeeafda4a363eeb124ab21f7663cc804d">◆ </a></span>read_bytes</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::read_bytes) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned char *<a class="el" href="ump__msg_8h.html#a1e43bf7d608e87228b625cca2c04d641">data</a>, size_t max_bytes)</td>
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<p>read the current values of bytes type </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a56e661ca05e9db6f0340d23673651d5c">◆ </a></span>read_enumerated</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::read_enumerated) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int *items)</td>
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<p>read the current values of enumerated type </p>
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<a id="ac99b6d92e4ca9c8e9115e38da0814bf6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac99b6d92e4ca9c8e9115e38da0814bf6">◆ </a></span>read_event</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::read_event) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___control.html#gad6c3746f1925bfec6a4fd0e913430e55">snd_ctl_elem_id_t</a> *id, unsigned int *event_mask)</td>
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<p>read a pending notification event; optional </p>
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<a id="a95de209ca2f456797ddbba4cdf5b7bd0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a95de209ca2f456797ddbba4cdf5b7bd0">◆ </a></span>read_iec958</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::read_iec958) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, <a class="el" href="structsnd__aes__iec958__t.html">snd_aes_iec958_t</a> *iec958)</td>
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<p>read the current values of iec958 type </p>
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<a id="a65328da675e4c1ad959bea026109c313"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a65328da675e4c1ad959bea026109c313">◆ </a></span>read_integer</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::read_integer) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, long *value)</td>
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<p>read the current values of integer type </p>
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<a id="a531baab0b857e3c0fcea7641a9a107fb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a531baab0b857e3c0fcea7641a9a107fb">◆ </a></span>read_integer64</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::read_integer64) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int64_t *value)</td>
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<p>read the current values of integer64 type </p>
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<a id="a7669a306b86bfe1df7502e195688b855"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7669a306b86bfe1df7502e195688b855">◆ </a></span>subscribe_events</h2>
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<td class="memname">void(* snd_ctl_ext_callback_t::subscribe_events) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, int subscribe)</td>
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<p>subscribe/unsubscribe the event notification; optional </p>
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<a id="a844ce4698c73bb316bdbde1554353e4a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a844ce4698c73bb316bdbde1554353e4a">◆ </a></span>write_bytes</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::write_bytes) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned char *<a class="el" href="ump__msg_8h.html#a1e43bf7d608e87228b625cca2c04d641">data</a>, size_t max_bytes)</td>
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<p>update the current values of bytes type with the given values </p>
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<a id="a9c42eb6739a90477b7b3775b4972268b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9c42eb6739a90477b7b3775b4972268b">◆ </a></span>write_enumerated</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::write_enumerated) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, unsigned int *items)</td>
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<p>update the current values of enumerated type with the given values </p>
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<a id="af031bf7a362a9fde9e622be0d36bb9f3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af031bf7a362a9fde9e622be0d36bb9f3">◆ </a></span>write_iec958</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::write_iec958) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, <a class="el" href="structsnd__aes__iec958__t.html">snd_aes_iec958_t</a> *iec958)</td>
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<p>update the current values of iec958 type with the given values </p>
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<a id="a7313060836f8d45cf31a528ec2d8a6d0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7313060836f8d45cf31a528ec2d8a6d0">◆ </a></span>write_integer</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::write_integer) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, long *value)</td>
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<p>update the current values of integer type with the given values </p>
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<a id="a3067fb89e0e4b71b7c0c9d3ec1cde0f7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3067fb89e0e4b71b7c0c9d3ec1cde0f7">◆ </a></span>write_integer64</h2>
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<td class="memname">int(* snd_ctl_ext_callback_t::write_integer64) (<a class="el" href="group___ctl_plugin___s_d_k.html#ga6e8d1fd87ddef00af5a9e2dd6c77b1db">snd_ctl_ext_t</a> *ext, <a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a> key, int64_t *value)</td>
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<p>update the current values of integer64 type with the given values </p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>/builddir/build/BUILD/alsa-lib-1.2.13/include/<a class="el" href="control__external_8h_source.html">control_external.h</a></li>
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