nxtOSEK/lejos_nxj/src/java/classes/lejos/nxt/comm/USBInputStream.java

   1 package lejos.nxt.comm;
   2
   3 import java.io.*;
   4
   5 public class USBInputStream extends InputStream {
   6         private byte buf[] = new byte[64];
   7         private int bufIdx = -1, bufSize = -1;
   8
   9         public int read() {
  10                 if (bufIdx == bufSize) {
  11                         do {
  12                                 bufSize = USB.usbRead(buf, 64);
  13                         } while (bufSize == 0);
  14                         bufIdx = 0;
  15                 }
  16
  17             return buf[bufIdx++] & 0xFF;
  18         }
  19 }
  20