- use getter methods to access Usb_xxx instance variables

git-svn-id: https://svn.code.sf.net/p/libusbjava/code/trunk@220 94ad28fe-ef68-46b1-9651-e7ae4fcf1c4c

java/src/ch/ntb/usb/Usb_Interface.java

@@ -20,15 +20,9 @@ public class Usb_Interface {
 	 */
 	public static final int USB_MAXALTSETTING = 128; /* Hard limit */
 
-	/**
-	 * Interface descriptors
-	 */
-	public Usb_Interface_Descriptor[] altsetting;
+	private Usb_Interface_Descriptor[] altsetting;
 
-	/**
-	 * Number of alternate settings
-	 */
-	public int num_altsetting;
+	private int num_altsetting;
 
 	@Override
 	public String toString() {
@@ -36,4 +30,22 @@ public class Usb_Interface {
 				+ Integer.toHexString(num_altsetting);
 	}
 
+	/**
+	 * Retuns an array of interface descriptors.<br>
+	 * 
+	 * @return an array of interface descriptors
+	 */
+	public Usb_Interface_Descriptor[] getAltsetting() {
+		return altsetting;
+	}
+
+	/**
+	 * Returns the number of alternate settings.<br>
+	 * 
+	 * @return the number of alternate settings
+	 */
+	public int getNumAltsetting() {
+		return num_altsetting;
+	}
+
 }