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/*
* Java libusb wrapper
* Copyright (c) 2005-2006 Andreas Schlaepfer <spandi at users.sourceforge.net>
*
* http://libusbjava.sourceforge.net
* This library is covered by the LGPL, read LGPL.txt for details.
*/
package ch.ntb.usb;
/**
* Represents the descriptor of a USB device.<br>
* A USB device can only have one device descriptor. It specifies some basic,
* yet important information about the device.<br>
* <br>
* The length of the device descriptor is
* {@link ch.ntb.usb.Usb_Descriptor#USB_DT_DEVICE_SIZE} and the type is
* {@link ch.ntb.usb.Usb_Descriptor#USB_DT_DEVICE}.
*
*/
public class Usb_Device_Descriptor extends Usb_Descriptor {
/**
* Device and/or interface class codes.
*/
public static final int USB_CLASS_PER_INTERFACE = 0, USB_CLASS_AUDIO = 1,
USB_CLASS_COMM = 2, USB_CLASS_HID = 3, USB_CLASS_PRINTER = 7,
USB_CLASS_MASS_STORAGE = 8, USB_CLASS_HUB = 9, USB_CLASS_DATA = 10,
USB_CLASS_VENDOR_SPEC = 0xff;
private short bcdUSB;
private byte bDeviceClass;
private byte bDeviceSubClass;
private byte bDeviceProtocol;
private byte bMaxPacketSize0;
private short idVendor;
private short idProduct;
private short bcdDevice;
private byte iManufacturer;
private byte iProduct;
private byte iSerialNumber;
private byte bNumConfigurations;
/**
* Returns the device release number.<br>
* Assigned by the manufacturer of the device.
*
* @return the device release number
*/
public short getBcdDevice() {
return bcdDevice;
}
/**
* Returns the USB specification number to which the device complies to.<br>
* This field reports the highest version of USB the device supports. The
* value is in binary coded decimal with a format of 0xJJMN where JJ is the
* major version number, M is the minor version number and N is the sub
* minor version number.<br>
* Examples: USB 2.0 is reported as 0x0200, USB 1.1 as 0x0110 and USB 1.0 as
* 0x100
*
* @return the USB specification number to which the device complies to
*/
public short getBcdUSB() {
return bcdUSB;
}
/**
* Returns the class code (Assigned by <a
* href="http://www.usb.org">www.usb.org</a>)<br>
* If equal to zero, each interface specifies it's own class code. If equal
* to 0xFF, the class code is vendor specified. Otherwise the field is a
* valid class code.
*
* @return the class code
*/
public byte getBDeviceClass() {
return bDeviceClass;
}
/**
* Returns the protocol code (Assigned by <a
* href="http://www.usb.org">www.usb.org</a>)<br>
*
* @return the protocol code
*/
public byte getBDeviceProtocol() {
return bDeviceProtocol;
}
/**
* Returns the subclass code (Assigned by <a
* href="http://www.usb.org">www.usb.org</a>)<br>
*
* @return the subclass code
*/
public byte getBDeviceSubClass() {
return bDeviceSubClass;
}
/**
* Returns the maximum packet size for endpoint zero.<br>
* Valid sizes are 8, 16, 32, 64.
*
* @return the maximum packet size for endpoint zero
*/
public byte getBMaxPacketSize0() {
return bMaxPacketSize0;
}
/**
* Returns the number of possible configurations supported at its current
* speed.<br>
*
* @return the number of possible configurations supported at its current
* speed
*/
public byte getBNumConfigurations() {
return bNumConfigurations;
}
/**
* Returns the product ID (Assigned by <a
* href="http://www.usb.org">www.usb.org</a>)<br>
*
* @return the product ID
*/
public short getIdProduct() {
return idProduct;
}
/**
* Returns the Vendor ID (Assigned by <a
* href="http://www.usb.org">www.usb.org</a>)<br>
*
* @return the Vendor ID
*/
public short getIdVendor() {
return idVendor;
}
/**
* Returns the index of the manufacturer string descriptor.<br>
* If this value is 0, no string descriptor is used.
*
* @return the index of the manufacturer string descriptor
*/
public byte getIManufacturer() {
return iManufacturer;
}
/**
* Returns the index of the product string descriptor.<br>
* If this value is 0, no string descriptor is used.
*
* @return the index of the product string descriptor
*/
public byte getIProduct() {
return iProduct;
}
/**
* Returns the index of serial number string descriptor.<br>
* If this value is 0, no string descriptor is used.
*
* @return the index of serial number string descriptor
*/
public byte getISerialNumber() {
return iSerialNumber;
}
@Override
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("Usb_Device_Descriptor idVendor: 0x"
+ Integer.toHexString(idVendor & 0xFFFF) + ", idProduct: 0x"
+ Integer.toHexString(idProduct & 0xFFFF));
return sb.toString();
}
}
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