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<h1>ffado_device_info Struct Reference</h1> </div>
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<p><code>#include <<a class="el" href="ffado_8h_source.html">ffado.h</a>></code></p>
<p><a href="structffado__device__info-members.html">List of all members.</a></p>
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<tr><td colspan="2"><h2><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="structffado__device__info.html#a977f42aeec8c3c787f05cd18f6e1c7f0">nb_device_spec_strings</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">char ** </td><td class="memItemRight" valign="bottom"><a class="el" href="structffado__device__info.html#a7540ebbf8601d70dbdc2699b348e2890">device_spec_strings</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structffado__device__info.html#a0efde4e54c07d275a17a6a95a5221715">reserved</a> [32]</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>This struct serves to define the devices that should be used by the library device_spec_strings is an array of pointers that should contain nb_device_spec_strings valid pointers to strings.</p>
<p>The spec strings should be null terminated and can be no longer than FFADO_MAX_SPECSTRINGS.</p>
<p>nb_device_spec_strings < FFADO_MAX_SPECSTRING_LENGTH nb_device_spec_strings >= 0</p>
<p>If nb_device_spec_strings == 0, all busses are scanned for attached devices, and all found devices that are supported are combined into one large pseudo-device. The device order is defined by the GUID of the device. Devices with lower GUID's will be the first ones.</p>
<p>If multiple device specifications are present, the device order is defined as follows:</p>
<ul>
<li>device(s) that correspond to a spec string with a lower index will be added before devices from higher indexes.</li>
<li>if a spec string results in multiple devices, they are sorted by GUID unless the spec format dictates otherwise.</li>
</ul>
<p>The actual meaning of the device specification should be one of the following:</p>
<ul>
<li>Format 1: "hw:x[,y[,z]]" x = the firewire bus to use ('port' in raw1394 terminology) (mandatory) y = the node id the device currently has (bus resets might change that, but FFADO will track these changes and keep using the device specified on startup) (optional) z = the stream direction to use. 0 => capture (record) channels only 1 => playback channels only other/unspecified => both playback and capture (optional)</li>
</ul>
<ul>
<li>Format 2: the device alias as defined in the ffado config file (UNIMPLEMENTED) </li>
</ul>
<hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="a7540ebbf8601d70dbdc2699b348e2890"></a><!-- doxytag: member="ffado_device_info::device_spec_strings" ref="a7540ebbf8601d70dbdc2699b348e2890" args="" -->
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<td class="memname">char** <a class="el" href="structffado__device__info.html#a7540ebbf8601d70dbdc2699b348e2890">ffado_device_info::device_spec_strings</a></td>
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<a class="anchor" id="a977f42aeec8c3c787f05cd18f6e1c7f0"></a><!-- doxytag: member="ffado_device_info::nb_device_spec_strings" ref="a977f42aeec8c3c787f05cd18f6e1c7f0" args="" -->
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<td class="memname">unsigned int <a class="el" href="structffado__device__info.html#a977f42aeec8c3c787f05cd18f6e1c7f0">ffado_device_info::nb_device_spec_strings</a></td>
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<a class="anchor" id="a0efde4e54c07d275a17a6a95a5221715"></a><!-- doxytag: member="ffado_device_info::reserved" ref="a0efde4e54c07d275a17a6a95a5221715" args="[32]" -->
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<td class="memname">int32_t <a class="el" href="structffado__device__info.html#a0efde4e54c07d275a17a6a95a5221715">ffado_device_info::reserved</a>[32]</td>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="ffado_8h_source.html">ffado.h</a></li>
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