Android 下的 USB HID 設備讀寫

UsbInterface usbInterface = usbDevice.getInterface(0);
//USBEndpoint為讀寫數據所需的節點
UsbEndpoint inEndpoint = usbInterface.getEndpoint(0);  //讀數據節點
UsbEndpoint outEndpoint = usbInterface.getEndpoint(1); //寫數據節點
UsbDeviceConnection connection = usbManager.openDevice(usbDevice);
connection.claimInterface(usbInterface, true);

//發送數據
byte[] byte2 = new byte[64];
int out = connection.bulkTransfer(outEndpoint, cmd, cmd.length, 3000);

//讀取數據1   兩種方法讀取數據
int ret = connection.bulkTransfer(inEndpoint, byte2, byte2.length, 3000);
Log.e("ret", "ret:"+ret);
for(Byte byte1 : byte2){
    System.err.println(byte1);
}

//讀取數據2
/*int outMax = outEndpoint.getMaxPacketSize();
int inMax = inEndpoint.getMaxPacketSize();
ByteBuffer byteBuffer = ByteBuffer.allocate(inMax);
UsbRequest usbRequest = new UsbRequest();
usbRequest.initialize(connection, inEndpoint);
usbRequest.queue(byteBuffer, inMax);
if(connection.requestWait() == usbRequest){
    byte[] retData = byteBuffer.array();
    for(Byte byte1 : retData){
        System.err.println(byte1);
    }
}*/

原文：http://blog.csdn.net/centralperk/article/details/9312401

 

參考：http://hi.baidu.com/intel88888/item/9a194171438dd9356dc37ca7