First, if you are using the 1.0.0 level you should at least go up to
the 1.0.2 level.  You also could get the CVS code and compile
yourself.

Second, you need to send more than just the method where the exception occurred.

2009/3/27 Hsieh Dinow <dino...@gmail.com>:
> Aim : List the usb devicse via java progran at Linux.
>
> Below is the information I got :
> 1. The book I studied is "O' Reilly Java I/O 2nd edition" and the chapter23.
> 2. Meanwhile I also surfed and read the "JRS-80" (http://javax-usb.org)
>
> Below is the configuration I set :
> a. Put the jsr80-1.0.0.jar、jsr80_linux-1.0.1.jar、jsr80_ri-1.0.0.jar into the
> directory "/jdk/jre/lib/ext/"
> b. Rename the libJavaxUsb-1.0.0.so to libJavaxUsb.so. And place it to the
> directory "/jdk/jre/lib/i386/"
> c. Place javax-usb.properties to the "/jdk/jre/lib/"
> d. I have used the different Linux platform (OpenSuSe and 10, RedHat
> EnterPrise 5, Debian, Fedora...etc)
> e. I also tried the different version about JDK (jdk-6-linux-i586.bin,
> Java5, J2SDK)
>
> Below is the code I tried :
> import java.util.*;
> import javax.usb.*;
> public class USBLister{
>   public static void main(String args[]) throws UsbException{
>     UsbServices services = UsbHostManager.getUsbServices();
>     UsbHub root = services.getRootUsbHub();
>     listDevices(root);
>   }
>   public static void listDevices(UsbHub hub){
>     List devices = hub.getAttachedUsbDevices();
>     Iterator iterator = devices.iterator();
>     while(iterator.hasNext()){
>       UsbDevice device = (UsbDevice)iterator.next();
>       System.out.println(device);
>       if(device.isUsbHub()){
>         listDevices((UsbHub)device);
>       }
>     }
>   }
> }
>
> ==> Everything is okay about the compile (javac).
> ==> But when I ran (java) it, some exception occured.
> Exception : com.ibm.jusb.os.linux.JavaxUsb.nativeSetTraceOutput
> ==> I am confused in this initiation between JAVA and USB for a long while.
> Could someone give me any advices to the connection about the USB at the
> Linux?
>
> Whatever Thanks your reading ^^
> ------------------------------------------------------------------------------
>
> _______________________________________________
> javax-usb-devel mailing list
> javax-usb-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/javax-usb-devel
>
>

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