48 lines
1.6 KiB
Java
48 lines
1.6 KiB
Java
package logiledus.USB;
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import javafx.concurrent.Task;
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import logiledus.MessagesConsumer;
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import org.usb4java.DeviceHandle;
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import org.usb4java.LibUsb;
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import java.nio.ByteBuffer;
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import java.nio.IntBuffer;
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abstract class LoThread extends Task<Void> {
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DeviceHandle handler;
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/**
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* Write to keyboard
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* @param message : what to sent
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* @return true in case of failure
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* false for success
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* */
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boolean write(byte[] message){
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ByteBuffer writeBuffer = ByteBuffer.allocateDirect(message.length); //writeBuffer.order() equals BIG_ENDIAN;
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writeBuffer.put(message); // Don't do writeBuffer.rewind();
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int result;
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if (message.length > 20)
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result = LibUsb.controlTransfer(handler, (byte) 0x21, (byte) 0x09, (short) 0x212, (short) 1, writeBuffer, 2000);
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else
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result = LibUsb.controlTransfer(handler, (byte) 0x21, (byte) 0x09, (short) 0x211, (short) 1, writeBuffer, 2000);
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if (result < 0){
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MessagesConsumer.getInstance().inform("Data transfer failed: "+UsbErrorCodes.getErrCode(result));
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return true;
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}
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ByteBuffer readBuffer = ByteBuffer.allocateDirect(64);
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IntBuffer readBufTrans = IntBuffer.allocate(1);
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LibUsb.interruptTransfer(handler, (byte) 0x82, readBuffer, readBufTrans, 1000);
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/*
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readBuffer.rewind();
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byte[] arr = new byte[readBuffer.get()];
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readBuffer.get(arr);
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RainbowHexDump.hexDumpUTF8(arr);
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*/
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return false;
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}
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}
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