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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">

<head>
  <title>Solid.Device</title>
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        KDE 4.9 PyKDE API Reference
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<h1>Device Class Reference</h1>
<code>from PyKDE4.solid import *</code>
<p>


Namespace: <a href="../solid/Solid.html">Solid</a><br />
<h2>Detailed Description</h2>

<p>This class allows applications to deal with devices available in the
underlying system.
</p>
<p>
Device stores a reference to device data provided by the backend.
Device objects are designed to be used by value. Copying these objects
is quite cheap, so using pointers to the me is generally not needed.
</p>
<p>

<dl class="author" compact><dt><b>Author:</b></dt><dd> Kevin Ottens &lt;ervin@kde.org&gt; </dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#Device">__init__</a> (self, QString udi=QString())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#Device">__init__</a> (self, <a href="../solid/Solid.Device.html">Solid.Device</a> device)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../solid/Solid.DeviceInterface.html">Solid.DeviceInterface</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#asDeviceInterface">asDeviceInterface</a> (self, <a href="../solid/Solid.DeviceInterface.html#Type">Solid.DeviceInterface.Type</a> type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#description">description</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QStringList&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#emblems">emblems</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#icon">icon</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#isDeviceInterface">isDeviceInterface</a> (self, <a href="../solid/Solid.DeviceInterface.html#Type">Solid.DeviceInterface.Type</a> type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#isValid">isValid</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../solid/Solid.Device.html">Solid.Device</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#parent">parent</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#parentUdi">parentUdi</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#product">product</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#udi">udi</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#vendor">vendor</a> (self)</td></tr>
<tr><td colspan="2"><br><h2>Static Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../solid/Solid.Device.html">Solid.Device</a>]&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#allDevices">allDevices</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../solid/Solid.Device.html">Solid.Device</a>]&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listFromQuery">listFromQuery</a> (<a href="../solid/Solid.Predicate.html">Solid.Predicate</a> predicate, QString parentUdi=QString())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../solid/Solid.Device.html">Solid.Device</a>]&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listFromQuery">listFromQuery</a> (QString predicate, QString parentUdi=QString())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../solid/Solid.Device.html">Solid.Device</a>]&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listFromType">listFromType</a> (<a href="../solid/Solid.DeviceInterface.html#Type">Solid.DeviceInterface.Type</a> type, QString parentUdi=QString())</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="Device"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString&nbsp;</td>
<td class="paramname"><em>udi=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Constructs a device for a given Universal Device Identifier (UDI).
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>udi</em>&nbsp;</td><td> the udi of the device to create
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="Device"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../solid/Solid.Device.html">Solid.Device</a>&nbsp;</td>
<td class="paramname"><em>device</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Constructs a copy of a device.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>device</em>&nbsp;</td><td> the device to copy
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="asDeviceInterface"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../solid/Solid.DeviceInterface.html">Solid.DeviceInterface</a> asDeviceInterface</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../solid/Solid.DeviceInterface.html#Type">Solid.DeviceInterface.Type</a>&nbsp;</td>
<td class="paramname"><em>type</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Retrieves a specialized interface to interact with the device corresponding to
a particular device interface.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>type</em>&nbsp;</td><td> the device interface type
</td></tr> </table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> a pointer to the device interface interface if it exists, 0 otherwise
</dd></dl>
</p></div></div><a class="anchor" name="description"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString description</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the description of device.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the description
</dd></dl> <dl class="since" compact><dt><b>Since:</b></dt><dd> 4.4
</dd></dl>
</p></div></div><a class="anchor" name="emblems"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QStringList emblems</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the names of the emblems representing the state of this device.
The naming follows the freedesktop.org specification.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the emblem names
</dd></dl> <dl class="since" compact><dt><b>Since:</b></dt><dd> 4.4
</dd></dl>
</p></div></div><a class="anchor" name="icon"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString icon</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the name of the icon representing this device.
The naming follows the freedesktop.org specification.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the icon name
</dd></dl>
</p></div></div><a class="anchor" name="isDeviceInterface"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool isDeviceInterface</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../solid/Solid.DeviceInterface.html#Type">Solid.DeviceInterface.Type</a>&nbsp;</td>
<td class="paramname"><em>type</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Tests if a device interface is available from the device.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>type</em>&nbsp;</td><td> the device interface type to query
</td></tr> </table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> true if the device interface is available, false otherwise
</dd></dl>
</p></div></div><a class="anchor" name="isValid"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool isValid</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Indicates if this device is valid.
A device is considered valid if it's available in the system.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> true if this device is available, false otherwise
</dd></dl>
</p></div></div><a class="anchor" name="parent"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../solid/Solid.Device.html">Solid.Device</a> parent</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the parent of the Device.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the device's parent
</dd></dl> <dl class="see" compact><dt><b>See also:</b></dt><dd> parentUdi()
</dd></dl>
</p></div></div><a class="anchor" name="parentUdi"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString parentUdi</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the Universal Device Identifier (UDI)
of the Device's parent.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the udi of the device's parent
</dd></dl>
</p></div></div><a class="anchor" name="product"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString product</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the name of the product corresponding to this device.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the product name
</dd></dl>
</p></div></div><a class="anchor" name="udi"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString udi</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the Universal Device Identifier (UDI).
</p>
<p>
<dl class="warning" compact><dt><b>Warning:</b></dt><dd> Don't use the UDI for anything except communication with Solid. Also don't store
UDIs as there's no guarantee that the UDI stays the same when the hardware setup changed.
The UDI is a unique identifier that is local to the computer in question and for the
current boot session. The UDIs may change after a reboot.
Similar hardware in other computers may have different values; different
hardware could have the same UDI.
</dd></dl> </p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the udi of the device
</dd></dl>
</p></div></div><a class="anchor" name="vendor"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString vendor</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves the name of the device vendor.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the vendor name
</dd></dl>
</p></div></div><hr><h2>Static Method Documentation</h2><a class="anchor" name="allDevices"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../solid/Solid.Device.html">Solid.Device</a>] allDevices</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname">)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Retrieves all the devices available in the underlying system.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the list of the devices available
</dd></dl>
</p></div></div><a class="anchor" name="listFromQuery"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../solid/Solid.Device.html">Solid.Device</a>] listFromQuery</td>
<td>(</td>
<td class="paramtype"><a href="../solid/Solid.Predicate.html">Solid.Predicate</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString&nbsp;</td>
<td class="paramname"><em>parentUdi=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience function see above.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>predicate</em>&nbsp;</td><td>

<tr><td></td><td valign="top"><em>parentUdi</em>&nbsp;</td><td>
</td></tr> </table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> the list of devices
</dd></dl>
</p></div></div><a class="anchor" name="listFromQuery"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../solid/Solid.Device.html">Solid.Device</a>] listFromQuery</td>
<td>(</td>
<td class="paramtype">QString&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString&nbsp;</td>
<td class="paramname"><em>parentUdi=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience function see above.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>predicate</em>&nbsp;</td><td>

<tr><td></td><td valign="top"><em>parentUdi</em>&nbsp;</td><td>
</td></tr> </table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> the list of devices
</dd></dl>
</p></div></div><a class="anchor" name="listFromType"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../solid/Solid.Device.html">Solid.Device</a>] listFromType</td>
<td>(</td>
<td class="paramtype"><a href="../solid/Solid.DeviceInterface.html#Type">Solid.DeviceInterface.Type</a>&nbsp;</td>
<td class="paramname"><em>type</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString&nbsp;</td>
<td class="paramname"><em>parentUdi=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Retrieves a list of devices of the system given matching the given
constraints (parent and device interface type)
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>type</em>&nbsp;</td><td> device interface type available on the devices we're looking for, or DeviceInterface.Unknown
if there's no constraint on the device interfaces

<tr><td></td><td valign="top"><em>parentUdi</em>&nbsp;</td><td> UDI of the parent of the devices we're searching for, or QString()
if there's no constraint on the parent
</td></tr> </table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> the list of devices corresponding to the given constraints
</dd></dl> <dl class="see" compact><dt><b>See also:</b></dt><dd> Solid.Predicate
</dd></dl>
</p></div></div>
</div>
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