java libusb教程



package DemoMath;

import java.util.List;

import javax.usb.UsbConfiguration; import javax.usb.UsbConst; import javax.usb.UsbControlIrp; import javax.usb.UsbDevice; import javax.usb.UsbDeviceDescriptor; import javax.usb.UsbEndpoint; import javax.usb.UsbException; import javax.usb.UsbHostManager; import javax.usb.UsbHub; import javax.usb.UsbInterface; import javax.usb.UsbInterfacePolicy; import javax.usb.UsbPipe; import javax.usb.util.UsbUtil;

public class UsbConn {

</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> final <span style="color: rgba(0, 0, 255, 1)">short</span> VENDOR_ID = <span style="color: rgba(128, 0, 128, 1)">0x04b4</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> final <span style="color: rgba(0, 0, 255, 1)">short</span> PRODUCT_ID = <span style="color: rgba(128, 0, 128, 1)">0x1004</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> final <span style="color: rgba(0, 0, 255, 1)">byte</span> INTERFACE_AD= <span style="color: rgba(128, 0, 128, 1)">0x00</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> final <span style="color: rgba(0, 0, 255, 1)">byte</span> ENDPOINT_OUT= <span style="color: rgba(128, 0, 128, 1)">0x02</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> final <span style="color: rgba(0, 0, 255, 1)">byte</span> ENDPOINT_IN= (<span style="color: rgba(0, 0, 255, 1)">byte</span>) <span style="color: rgba(128, 0, 128, 1)">0x86</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> final <span style="color: rgba(0, 0, 255, 1)">byte</span>[] COMMAND = {<span style="color: rgba(128, 0, 128, 1)">0x01</span>,<span style="color: rgba(128, 0, 128, 1)">0x00</span><span style="color: rgba(0, 0, 0, 1)">}; @SuppressWarnings(</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">unchecked</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span><span style="color: rgba(0, 0, 0, 1)"> UsbDevice findMissileLauncher(UsbHub hub) { UsbDevice launcher </span>= <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">for</span> (UsbDevice device : (List&lt;UsbDevice&gt;<span style="color: rgba(0, 0, 0, 1)">) hub.getAttachedUsbDevices()) { </span><span style="color: rgba(0, 0, 255, 1)">if</span><span style="color: rgba(0, 0, 0, 1)"> (device.isUsbHub()) { launcher </span>=<span style="color: rgba(0, 0, 0, 1)"> findMissileLauncher((UsbHub) device); </span><span style="color: rgba(0, 0, 255, 1)">if</span> (launcher != <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> launcher; } </span><span style="color: rgba(0, 0, 255, 1)">else</span><span style="color: rgba(0, 0, 0, 1)"> { UsbDeviceDescriptor desc </span>=<span style="color: rgba(0, 0, 0, 1)"> device.getUsbDeviceDescriptor(); </span><span style="color: rgba(0, 0, 255, 1)">if</span> (desc.idVendor() ==<span style="color: rgba(0, 0, 0, 1)"> VENDOR_ID </span>&amp;&amp; desc.idProduct() ==<span style="color: rgba(0, 0, 0, 1)"> PRODUCT_ID) { System.</span><span style="color: rgba(0, 0, 255, 1)">out</span>.println(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">发现设备</span><span style="color: rgba(128, 0, 0, 1)">"</span> +<span style="color: rgba(0, 0, 0, 1)"> device); </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> device; } } } </span><span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">; } </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">command for controlTransfer</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> sendMessage(UsbDevice device, <span style="color: rgba(0, 0, 255, 1)">byte</span><span style="color: rgba(0, 0, 0, 1)">[] message) throws UsbException { UsbControlIrp irp </span>=<span style="color: rgba(0, 0, 0, 1)"> device .createUsbControlIrp( (</span><span style="color: rgba(0, 0, 255, 1)">byte</span>) (UsbConst.REQUESTTYPE_TYPE_CLASS |<span style="color: rgba(0, 0, 0, 1)"> UsbConst.REQUESTTYPE_RECIPIENT_INTERFACE), (</span><span style="color: rgba(0, 0, 255, 1)">byte</span>) <span style="color: rgba(128, 0, 128, 1)">0x09</span>, (<span style="color: rgba(0, 0, 255, 1)">short</span>) <span style="color: rgba(128, 0, 128, 1)">2</span>, (<span style="color: rgba(0, 0, 255, 1)">short</span>) <span style="color: rgba(128, 0, 128, 1)">1</span><span style="color: rgba(0, 0, 0, 1)">); irp.setData(message); device.syncSubmit(irp); } </span><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)">* * Class to listen in a dedicated Thread for data coming events. * This really could be used for any HID device. </span><span style="color: rgba(0, 128, 0, 1)">*/</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">class</span><span style="color: rgba(0, 0, 0, 1)"> HidMouseRunnable implements Runnable { </span><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)"> This pipe must be the HID interface's interrupt-type in-direction endpoint's pipe. </span><span style="color: rgba(0, 128, 0, 1)">*/</span> <span style="color: rgba(0, 0, 255, 1)">public</span> HidMouseRunnable(UsbPipe pipe) { usbPipe =<span style="color: rgba(0, 0, 0, 1)"> pipe; } </span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> run() { </span><span style="color: rgba(0, 0, 255, 1)">byte</span>[] buffer = <span style="color: rgba(0, 0, 255, 1)">new</span> <span style="color: rgba(0, 0, 255, 1)">byte</span><span style="color: rgba(0, 0, 0, 1)">[UsbUtil.unsignedInt(usbPipe.getUsbEndpoint().getUsbEndpointDescriptor().wMaxPacketSize())]; @SuppressWarnings(</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">unused</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">) </span><span style="color: rgba(0, 0, 255, 1)">int</span> length = <span style="color: rgba(128, 0, 128, 1)">0</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">while</span><span style="color: rgba(0, 0, 0, 1)"> (running) { </span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)"> { length </span>=<span style="color: rgba(0, 0, 0, 1)"> usbPipe.syncSubmit(buffer); } </span><span style="color: rgba(0, 0, 255, 1)">catch</span><span style="color: rgba(0, 0, 0, 1)"> ( UsbException uE ) { </span><span style="color: rgba(0, 0, 255, 1)">if</span><span style="color: rgba(0, 0, 0, 1)"> (running) { System.</span><span style="color: rgba(0, 0, 255, 1)">out</span>.println(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Unable to submit data buffer to HID mouse : </span><span style="color: rgba(128, 0, 0, 1)">"</span> +<span style="color: rgba(0, 0, 0, 1)"> uE.getMessage()); </span><span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">; } } </span><span style="color: rgba(0, 0, 255, 1)">if</span><span style="color: rgba(0, 0, 0, 1)"> (running) { 

// System.out.print(“Got ” + length + “ bytes of data from HID mouse :”); // for (int i=0; i<length; i++) // System.out.print(” 0x” + UsbUtil.toHexString(buffer[i]));

 <span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)"> { String result </span>=<span style="color: rgba(0, 0, 0, 1)"> DataFix.getHexString(buffer); System.</span><span style="color: rgba(0, 0, 255, 1)">out</span><span style="color: rgba(0, 0, 0, 1)">.println(result); } </span><span style="color: rgba(0, 0, 255, 1)">catch</span><span style="color: rgba(0, 0, 0, 1)"> (Exception e) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated catch block</span> 

e.printStackTrace();

 } } } } </span><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)">* * Stop/abort listening for data events. </span><span style="color: rgba(0, 128, 0, 1)">*/</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> stop() { running </span>= <span style="color: rgba(0, 0, 255, 1)">false</span><span style="color: rgba(0, 0, 0, 1)">; usbPipe.abortAllSubmissions(); } </span><span style="color: rgba(0, 0, 255, 1)">public</span> boolean running = <span style="color: rgba(0, 0, 255, 1)">true</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">public</span> UsbPipe usbPipe = <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">; } </span><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)">* * get the correct Interface for USB * @param device * @return * @throws UsbException </span><span style="color: rgba(0, 128, 0, 1)">*/</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span><span style="color: rgba(0, 0, 0, 1)"> UsbInterface readInit() throws UsbException{ UsbDevice device </span>=<span style="color: rgba(0, 0, 0, 1)"> findMissileLauncher(UsbHostManager.getUsbServices() .getRootUsbHub()); </span><span style="color: rgba(0, 0, 255, 1)">if</span> (device == <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">) { System.</span><span style="color: rgba(0, 0, 255, 1)">out</span>.println(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Missile launcher not found.</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">); System.exit(</span><span style="color: rgba(128, 0, 128, 1)">1</span><span style="color: rgba(0, 0, 0, 1)">); } UsbConfiguration configuration </span>=<span style="color: rgba(0, 0, 0, 1)"> device.getActiveUsbConfiguration(); UsbInterface iface </span>= configuration.getUsbInterface(INTERFACE_AD);<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">Interface Alternate Number </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">if you using the MS os,may be you need judge,because MS do not need follow code,by tong</span> iface.claim(<span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> UsbInterfacePolicy() { @Override </span><span style="color: rgba(0, 0, 255, 1)">public</span><span style="color: rgba(0, 0, 0, 1)"> boolean forceClaim(UsbInterface arg0) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated method stub</span> <span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(0, 0, 255, 1)">true</span><span style="color: rgba(0, 0, 0, 1)">; } }); </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> iface; } </span><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)">* * 异步bulk传输,by tong * @param usbInterface * @param data </span><span style="color: rgba(0, 128, 0, 1)">*/</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> syncSend(UsbInterface usbInterface,<span style="color: rgba(0, 0, 255, 1)">byte</span><span style="color: rgba(0, 0, 0, 1)">[] data) { UsbEndpoint endpoint </span>=<span style="color: rgba(0, 0, 0, 1)"> usbInterface.getUsbEndpoint(ENDPOINT_OUT); UsbPipe outPipe </span>=<span style="color: rgba(0, 0, 0, 1)"> endpoint.getUsbPipe(); </span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)"> { outPipe.open(); outPipe.syncSubmit(data); } </span><span style="color: rgba(0, 0, 255, 1)">catch</span><span style="color: rgba(0, 0, 0, 1)"> (Exception e) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated catch block</span> 

e.printStackTrace();

 }</span><span style="color: rgba(0, 0, 255, 1)">finally</span><span style="color: rgba(0, 0, 0, 1)">{ </span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)"> { outPipe.close(); } </span><span style="color: rgba(0, 0, 255, 1)">catch</span><span style="color: rgba(0, 0, 0, 1)"> (Exception e) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated catch block</span> 

e.printStackTrace();

 } } } </span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span><span style="color: rgba(0, 0, 0, 1)"> HidMouseRunnable listenData(UsbInterface usbInterface) { UsbEndpoint endpoint </span>=<span style="color: rgba(0, 0, 0, 1)"> usbInterface.getUsbEndpoint(ENDPOINT_IN); UsbPipe inPipe </span>=<span style="color: rgba(0, 0, 0, 1)"> endpoint.getUsbPipe(); HidMouseRunnable hmR </span>= <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">; </span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)"> { inPipe.open(); hmR </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> HidMouseRunnable(inPipe); Thread t </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Thread(hmR); t.start(); } </span><span style="color: rgba(0, 0, 255, 1)">catch</span><span style="color: rgba(0, 0, 0, 1)"> (Exception e) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated catch block</span> 

e.printStackTrace();

 } </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> hmR; } </span><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)">* * 主程序入口 * * @param args </span><span style="color: rgba(0, 128, 0, 1)">*/</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> main(String[] args) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated method stub</span> 

UsbInterface iface;

 </span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)"> { iface </span>=<span style="color: rgba(0, 0, 0, 1)"> readInit(); listenData(iface); syncSend(iface, COMMAND); } </span><span style="color: rgba(0, 0, 255, 1)">catch</span><span style="color: rgba(0, 0, 0, 1)"> (UsbException e) { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TODO Auto-generated catch block</span> 

e.printStackTrace();

 } } 

}

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