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<div class="subTitle">org.usb4java</div>

<h2 title="Class Device" class="title">Class Device</h2>

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<pre>public final class <span class="typeNameLabel">Device</span>

extends <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>

<div class="block">Structure representing a USB device detected on the system.

This is an opaque type for which you are only ever provided with a pointer,

usually originating from <a href="../../org/usb4java/LibUsb.html#getDeviceList-org.usb4java.Context-org.usb4java.DeviceList-"><code>LibUsb.getDeviceList(Context, DeviceList)</code></a>.

Certain operations can be performed on a device, but in order to do any I/O

you will have to first obtain a device handle using

<a href="../../org/usb4java/LibUsb.html#open-org.usb4java.Device-org.usb4java.DeviceHandle-"><code>LibUsb.open(Device, DeviceHandle)</code></a>.

Devices are reference counted with <a href="../../org/usb4java/LibUsb.html#refDevice-org.usb4java.Device-"><code>LibUsb.refDevice(Device)</code></a> and

<a href="../../org/usb4java/LibUsb.html#unrefDevice-org.usb4java.Device-"><code>LibUsb.unrefDevice(Device)</code></a>, and are freed when the reference count

reaches 0. New devices presented by

<a href="../../org/usb4java/LibUsb.html#getDeviceList-org.usb4java.Context-org.usb4java.DeviceList-"><code>LibUsb.getDeviceList(Context, DeviceList)</code></a> have a reference count of

1, and <a href="../../org/usb4java/LibUsb.html#freeDeviceList-org.usb4java.DeviceList-boolean-"><code>LibUsb.freeDeviceList(DeviceList, boolean)</code></a> can optionally

decrease the reference count on all devices in the list.

<a href="../../org/usb4java/LibUsb.html#open-org.usb4java.Device-org.usb4java.DeviceHandle-"><code>LibUsb.open(Device, DeviceHandle)</code></a> adds another reference which is

later destroyed by <a href="../../org/usb4java/LibUsb.html#close-org.usb4java.DeviceHandle-"><code>LibUsb.close(DeviceHandle)</code></a>.</div>

<dl>

<dt><span class="simpleTagLabel">Author:</span></dt>

<dd>Klaus Reimer (k@ailis.de)</dd>

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<td class="colFirst"><code>boolean</code></td>

<td class="colLast"><code><span class="memberNameLink"><a href="../../org/usb4java/Device.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</code>&nbsp;</td>

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<td class="colFirst"><code>long</code></td>

<td class="colLast"><code><span class="memberNameLink"><a href="../../org/usb4java/Device.html#getPointer--">getPointer</a></span>()</code>

<div class="block">Returns the native pointer to the device structure.</div>

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<td class="colFirst"><code>int</code></td>

<td class="colLast"><code><span class="memberNameLink"><a href="../../org/usb4java/Device.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>

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<h4>getPointer</h4>

<pre>public&nbsp;long&nbsp;getPointer()</pre>

<div class="block">Returns the native pointer to the device structure.</div>

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<dt><span class="returnLabel">Returns:</span></dt>

<dd>The native pointer to the device structure.</dd>

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<pre>public&nbsp;int&nbsp;hashCode()</pre>

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