public static void main(String argv[]) { Bus busses[] = null; Host host; try { // FIXME: option flag for rmi (iiop?) host:port spec. host = HostFactory.getHost(); if (host == null) { System.err.println("USB is unavailable, can't run."); return; } System.out.println("<!-- " + host + " -->"); busses = host.getBusses(); indentLine(0, "<host busses='" + busses.length + "'>"); for (int busno = 0; busno < busses.length; busno++) { indentLine(2, "<!-- Bus #" + (busno + 1) + " -->"); // show tree from root hub if (busses[busno] != null) { try { printDevice(2, busses[busno].getRootHub()); } catch (IOException e) { e.printStackTrace(); } } } indentLine(0, "</host>"); } catch (SecurityException e) { System.err.println("USB permissions problem:"); System.err.println(e.getMessage()); System.exit(1); } catch (Exception e) { e.printStackTrace(); } }