abstractdescriptor.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 53 行

/*
 * $Id: AbstractDescriptor.java,v 1.1 2003/11/25 11:41:20 epr Exp $
 */
package org.jnode.driver.usb;


/**
 * @author Ewout Prangsma ([e-mail])
 */
public abstract class AbstractDescriptor extends USBPacket {

	/**
	 * Initialize this instance
	 * 
	 * @param size
	 */
	public AbstractDescriptor(int size) {
		super(size);
	}

	/**
	 * @param data
	 * @param ofs
	 * @param len
	 */
	public AbstractDescriptor(byte[] data, int ofs, int len) {
		super(data, ofs, len);
	}

	/**
	 * Gets the length of the descriptor
	 */
	public final int getLength() {
		return getByte(0);
	}

	/**
	 * Gets the type of the descriptor
	 */
	public final int getType() {
		return getByte(1);
	}

	/**
	 * Load all strings with the default Language ID.
	 * 
	 * @param dev
	 */
	void loadStrings(USBDevice dev) throws USBException {
		// Do nothing
	}
}