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Subversion Repositories usb_fpga_2_13

[/] [usb_fpga_2_13/] [trunk/] [libusbJava-src/] [ch/] [ntb/] [usb/] [Usb_Interface_Descriptor.java] - Blame information for rev 2

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/*
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 * Java libusb wrapper
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 * Copyright (c) 2005-2006 Andreas Schläpfer <spandi at users.sourceforge.net>
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 *
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 * http://libusbjava.sourceforge.net
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 * This library is covered by the LGPL, read LGPL.txt for details.
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 */
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package ch.ntb.usb;
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/**
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 * Represents the descriptor of a USB interface.<br>
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 * The interface descriptor could be seen as a header or grouping of the
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 * endpoints into a functional group performing a single feature of the device.<br>
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 * <br>
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 * The length of the interface descriptor is
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 * {@link ch.ntb.usb.Usb_Descriptor#USB_DT_INTERFACE_SIZE} and the type is
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 * {@link ch.ntb.usb.Usb_Descriptor#USB_DT_INTERFACE}.
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 *
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 */
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public class Usb_Interface_Descriptor extends Usb_Descriptor {
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        /**
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         * Maximum number of interfaces
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         */
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        public static final int USB_MAXINTERFACES = 32;
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        private byte bInterfaceNumber;
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        private byte bAlternateSetting;
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        private byte bNumEndpoints;
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        private byte bInterfaceClass;
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        private byte bInterfaceSubClass;
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        private byte bInterfaceProtocol;
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        private byte iInterface;
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        private Usb_Endpoint_Descriptor[] endpoint;
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        private byte[] extra; /* Extra descriptors */
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        private int extralen;
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        @Override
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        public String toString() {
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                return "Usb_Interface_Descriptor bNumEndpoints: 0x"
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                                + Integer.toHexString(bNumEndpoints);
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        }
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        /**
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         * Returns the value used to select the alternate setting ({@link LibusbJava#usb_set_altinterface(long, int)}).<br>
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         *
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         * @return the alternate setting
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         */
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        public byte getBAlternateSetting() {
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                return bAlternateSetting;
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        }
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        /**
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         * Returns the class code (Assigned by <a
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         * href="http://www.usb.org">www.usb.org</a>).<br>
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         *
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         * @return the class code
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         */
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        public byte getBInterfaceClass() {
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                return bInterfaceClass;
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        }
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        /**
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         * Returns the number (identifier) of this interface.<br>
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         *
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         * @return the number (identifier) of this interface
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         */
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        public byte getBInterfaceNumber() {
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                return bInterfaceNumber;
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        }
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        /**
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         * Returns the protocol code (Assigned by <a
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         * href="http://www.usb.org">www.usb.org</a>).<br>
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         *
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         * @return the protocol code
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         */
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        public byte getBInterfaceProtocol() {
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                return bInterfaceProtocol;
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        }
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        /**
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         * Returns the subclass code (Assigned by <a
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         * href="http://www.usb.org">www.usb.org</a>).<br>
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         *
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         * @return the subclass code
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         */
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        public byte getBInterfaceSubClass() {
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                return bInterfaceSubClass;
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        }
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        /**
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         * Returns the number of endpoints used for this interface.<br>
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         *
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         * @return the number of endpoints used for this interface
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         */
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        public byte getBNumEndpoints() {
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                return bNumEndpoints;
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        }
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        /**
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         * Returns an array of endpoint descriptors.<br>
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         *
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         * @return an array of endpoint descriptors
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         */
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        public Usb_Endpoint_Descriptor[] getEndpoint() {
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                return endpoint;
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        }
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        /**
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         * Returns the data of extra descriptor(s) if available.<br>
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         *
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         * @return null or a byte array with the extra descriptor data
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         */
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        public byte[] getExtra() {
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                return extra;
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        }
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        /**
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         * Returns the number of bytes of the extra descriptor.<br>
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         *
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         * @return the number of bytes of the extra descriptor
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         */
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        public int getExtralen() {
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                return extralen;
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        }
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        /**
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         * Returns the index of the String descriptor describing this interface.<br>
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         *
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         * @return the index of the String descriptor
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         */
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        public byte getIInterface() {
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                return iInterface;
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        }
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}

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