147 lines
3.9 KiB
Java
147 lines
3.9 KiB
Java
/*
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* Copyright 2013 Klaus Reimer <k@ailis.de>
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* See LICENSE.md for licensing information.
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*
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* Based on libusb <http://www.libusb.org/>:
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*
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* Copyright 2001 Johannes Erdfelt <johannes@erdfelt.com>
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* Copyright 2007-2009 Daniel Drake <dsd@gentoo.org>
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* Copyright 2010-2012 Peter Stuge <peter@stuge.se>
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* Copyright 2008-2011 Nathan Hjelm <hjelmn@users.sourceforge.net>
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* Copyright 2009-2012 Pete Batard <pete@akeo.ie>
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* Copyright 2009-2012 Ludovic Rousseau <ludovic.rousseau@gmail.com>
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* Copyright 2010-2012 Michael Plante <michael.plante@gmail.com>
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* Copyright 2011-2012 Hans de Goede <hdegoede@redhat.com>
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* Copyright 2012 Martin Pieuchot <mpi@openbsd.org>
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* Copyright 2012-2013 Toby Gray <toby.gray@realvnc.com>
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*/
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package org.libusb4java;
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import org.apache.commons.lang3.builder.EqualsBuilder;
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import org.apache.commons.lang3.builder.HashCodeBuilder;
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/**
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* A structure representing the USB 2.0 Extension descriptor. This descriptor is
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* documented in section 9.6.2.1 of the USB 3.0 specification.
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*
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* All multiple-byte fields are represented in host-endian format.
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*
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* @author Klaus Reimer (k@ailis.de)
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*/
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public final class Usb20ExtensionDescriptor
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{
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/** The native pointer to the descriptor structure. */
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private long usb20ExtensionDescriptorPointer;
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/**
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* Constructs a new USB 2.0 Extension descriptor which can be passed to the
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* {@link LibUsb#getUsb20ExtensionDescriptor(Context, BosDevCapabilityDescriptor, Usb20ExtensionDescriptor)}
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* method.
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*/
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public Usb20ExtensionDescriptor()
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{
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// Empty
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}
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/**
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* Returns the native pointer.
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*
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* @return The native pointer.
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*/
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public long getPointer()
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{
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return this.usb20ExtensionDescriptorPointer;
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}
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/**
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* Returns the size of this descriptor (in bytes).
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*
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* @return The descriptor size in bytes;
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*/
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public native byte bLength();
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/**
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* Returns the descriptor type.
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*
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* @return The descriptor type.
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*/
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public native byte bDescriptorType();
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/**
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* Returns the device capability type.
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*
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* @return The device capability type.
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*/
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public native byte bDevCapabilityType();
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/**
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* Returns the bitmap of supported device level features.
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*
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* @return The supported device level features.
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*/
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public native int bmAttributes();
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/**
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* Returns a dump of this descriptor.
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*
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* @return The descriptor dump.
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*/
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public String dump()
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{
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return String.format(
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"USB 2.0 Extension Descriptor:%n" +
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" bLength %18d%n" +
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" bDescriptorType %10d%n" +
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" bDevCapabilityType %7d%n" +
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" bmAttributes %13s%n",
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this.bLength() & 0xFF,
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this.bDescriptorType() & 0xFF,
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this.bDevCapabilityType() & 0xFF,
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String.format("0x%08x", this.bmAttributes()));
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}
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@Override
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public int hashCode()
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{
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return new HashCodeBuilder()
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.append(this.bLength())
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.append(this.bDescriptorType())
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.append(this.bDevCapabilityType())
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.append(this.bmAttributes())
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.toHashCode();
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}
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@Override
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public boolean equals(final Object obj)
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{
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if (obj == null)
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{
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return false;
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}
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if (obj == this)
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{
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return true;
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}
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if (obj.getClass() != this.getClass())
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{
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return false;
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}
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final Usb20ExtensionDescriptor other = (Usb20ExtensionDescriptor) obj;
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return new EqualsBuilder()
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.append(this.bLength(), other.bLength())
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.append(this.bDescriptorType(), other.bDescriptorType())
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.append(this.bDevCapabilityType(), other.bDevCapabilityType())
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.append(this.bmAttributes(), other.bmAttributes())
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.isEquals();
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}
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@Override
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public String toString()
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{
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return this.dump();
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}
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}
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