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$NCDId: @(#)AuDAttr.man,v 1.1 1994/09/27 00:25:12 greg Exp $
Copyright 1994 Steven King
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$Id: AuDeviceAttributes.3.html 243 2007-04-07 23:13:43Z jon $
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<html>
<head>
<title>AuDeviceAttributes(3) manual page</title>
</head>
<body bgcolor='#efefef' text='black' link='blue' vlink='#551A8B' alink='red'>
<a href='#toc'>Table of Contents</a><p>
<h2><a name='sect0' href='#toc0'><b>Name</b></a></h2>
<b>AuDeviceAttributes</b> - device attributes structure
<h2><a name='sect1' href='#toc1'><b>Structures</b></a></h2>
#include <audio/audiolib.h> <p>
typedef struct _AuDeviceAttributes <br>
{ <br>
. . .<br>
<br>
}<b>AuDeviceAttributes</b>;
<h2><a name='sect2' href='#toc2'><b>Members</b></a></h2>
Do not dereference the members of the <b>AuDeviceAttributes</b>
structure directly. Instead use the access macros. <p>
<i>da</i> is a pointer to a <b>AuDeviceAttributes</b>
structure.
<dl>
<dt><b>AuDeviceValueMask</b>(<i>da</i>)</dt>
<dd>Accesses the <b>AuMask</b> value indicating what
attributes are present. This is a bitwise inclusive OR of these constants:
<b>AuCompCommonIDMask</b>, <b>AuCompCommonKindMask</b>, <b>AuCompCommonUseMask</b>, <b>AuCompCommonFormatMask</b>,
<b>AuCompCommonNumTracksMask</b>, <b>AuCompCommonAccessMask</b>, <b>AuCompCommonDescriptionMask</b>,
<b>AuCompDeviceMinSampleRateMask</b>, <b>AuCompDeviceMaxSampleRateMask</b>, <b>AuCompDeviceLocationMask</b>,
<b>AuCompDeviceGainMask</b>, <b>AuCompDeviceLineModeMask</b>, and <b>AuCompDeviceChildrenMask</b>.
</dd>
<dt><b>AuDeviceChangableMask</b>(<i>da</i>)</dt>
<dd>Accesses the <b>AuMask</b> value indicating which attributes
can be changed. This is a bitwise inclusive OR of these constants: <b>AuCompCommonIDMask</b>,
<b>AuCompCommonKindMask</b>, <b>AuCompCommonUseMask</b>, <b>AuCompCommonFormatMask</b>, <b>AuCompCommonNumTracksMask</b>,
<b>AuCompCommonAccessMask</b>, <b>AuCompCommonDescriptionMask</b>, <b>AuCompDeviceMinSampleRateMask</b>,
<b>AuCompDeviceMaxSampleRateMask</b>, <b>AuCompDeviceLocationMask</b>, <b>AuCompDeviceGainMask</b>,
<b>AuCompDeviceLineModeMask</b>, and <b>AuCompDeviceChildrenMask</b>. </dd>
<dt><b>AuDeviceIdentifier</b>(<i>da</i>)</dt>
<dd>Accesses
the <b>AuFlowID</b> ID of the device. </dd>
<dt><b>AuDeviceKind</b>(<i>da</i>)</dt>
<dd>Accesses the int value indicating
the kind of component. Devices are either <b>AuComponentKindPhysicalInput</b> or
<b>AuComponentKindPhysicalOutput</b>. </dd>
<dt><b>AuDeviceUse</b>(<i>da</i>)</dt>
<dd>Accesses the <b>AuMask</b> value
indicating what uses of the device are permitted. This is a bitwise inclusive
OR of these constants: <b>AuComponentUseImportMask</b> and <b>AuComponentUseExportMask</b>.
</dd>
<dt><b>AuDeviceFormat</b>(<i>da</i>)</dt>
<dd>Accesses the int value indicating the audio data format
the device uses. Currently, the following formats are defined: <b>AuFormatULAW8</b>,
<b>AuFormatLinearUnsigned8</b>, <b>AuFormatLinearSigned8</b>, <b>AuFormatLinearSigned16MSB</b>,
<b>AuFormatLinearUnsigned16MSB</b>, <b>AuFormatLinearSigned16LSB</b>, and <b>AuFormatLinearUnsigned16LSB</b>.
</dd>
<dt><b>AuDeviceNumTracks</b>(<i>da</i>)</dt>
<dd>Accesses the int value indicating the number of tracks
the device supports. </dd>
<dt><b>AuDeviceAccess</b>(<i>da</i>)</dt>
<dd>Accesses the <b>AuMask</b> value indicating
what kinds of access are allowed. This is a bitwise inclusive OR of these
constants: <b>AuAccessImportMask</b>, <b>AuAccessExportMask</b>, <b>AuAccessDestroyMask</b>,
and <b>AuAccessListMask</b>. </dd>
<dt><b>AuDeviceDescription</b>(<i>da</i>)</dt>
<dd>Accesses the <b>AuString</b> structure
containing a textual description of the device. </dd>
<dt><b>AuDeviceMinSampleRate</b>(<i>da</i>)</dt>
<dd>Accesses
the unsigned int value indicating the minimum sample rate supported by
the device. </dd>
<dt><b>AuDeviceMaxSampleRate</b>(<i>da</i>)</dt>
<dd>Accesses the unsigned int value indicating
the maximum sample rate supported by the device. </dd>
<dt><b>AuDeviceLocation</b>(<i>da</i>)</dt>
<dd>Accesses
the <b>AuMask</b> value indicating the location of the device. This is a bitwise
inclusive OR of these constants: <b>AuDeviceLocationLeftMask</b>, <b>AuDeviceLocationCenterMask</b>,
<b>AuDeviceLocationRightMask</b>, <b>AuDeviceLocationTopMask</b>, <b>AuDeviceLocationMiddleMask</b>,
<b>AuDeviceLocationBottomMask</b>, <b>AuDeviceLocationBackMask</b>, <b>AuDeviceLocationFrontMask</b>,
<b>AuDeviceLocationInternalMask</b>, and <b>AuDeviceLocationExternalMask</b> </dd>
<dt><b>AuDeviceGain</b>(<i>da</i>)</dt>
<dd>Accesses
the <b>AuFixedPoint</b> value with the current hardware amplification level. </dd>
<dt><b>AuDeviceLineMode</b>(<i>da</i>)</dt>
<dd>Accesses
the <b>AuInt32</b> value indicating the current line mode (input device only).
</dd>
<dt><b>AuDeviceNumChildren</b>(<i>da</i>)</dt>
<dd>Accesses the int value indicating the number of
subcomponents of the device. </dd>
<dt><b>AuDeviceChildren</b>(<i>da</i>)</dt>
<dd>Accesses the list of <b>AuDeviceID</b>'s
of the subcomponents of the device. </dd>
</dl>
<h2><a name='sect3' href='#toc3'><b>Description</b></a></h2>
The <b>AuDeviceAttributes</b> structure
describes the physical hardware interface.
<h2><a name='sect4' href='#toc4'><b>See Also</b></a></h2>
<b>AuGetDeviceAttributes</b>,
<b>AuListDevices</b>. <p>
audiolib - <b>Network Audio System</b> C Language Interface
<p> <p>
<hr><p>
<a name='toc'><b>Table of Contents</b></a><p>
<ul>
<li><a name='toc0' href='#sect0'>Name</a></li>
<li><a name='toc1' href='#sect1'>Structures</a></li>
<li><a name='toc2' href='#sect2'>Members</a></li>
<li><a name='toc3' href='#sect3'>Description</a></li>
<li><a name='toc4' href='#sect4'>See Also</a></li>
</ul>
</body>
</html>
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