diff --git a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/CommonUsbSerialDriver.java b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/CommonUsbSerialDriver.java
index 9aff588..7c61704 100644
--- a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/CommonUsbSerialDriver.java
+++ b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/CommonUsbSerialDriver.java
@@ -134,4 +134,9 @@ abstract class CommonUsbSerialDriver implements UsbSerialDriver {
     @Override
     public abstract void setRTS(boolean value) throws IOException;
 
+    @Override
+    public boolean purgeHwBuffers(boolean flushReadBuffers, boolean flushWriteBuffers) throws IOException {
+        return !flushReadBuffers && !flushWriteBuffers;
+    }
+
 }
diff --git a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/Cp2102SerialDriver.java b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/Cp2102SerialDriver.java
index fcf8cfc..7e9118b 100644
--- a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/Cp2102SerialDriver.java
+++ b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/Cp2102SerialDriver.java
@@ -12,7 +12,6 @@ import android.hardware.usb.UsbInterface;
 import android.util.Log;
 
 public class Cp2102SerialDriver extends CommonUsbSerialDriver {
-    
     private static final String TAG = Cp2102SerialDriver.class.getSimpleName();
     
     private static final int DEFAULT_BAUD_RATE = 9600;
@@ -32,6 +31,10 @@ public class Cp2102SerialDriver extends CommonUsbSerialDriver {
     private static final int SILABSER_SET_LINE_CTL_REQUEST_CODE = 0x03;
     private static final int SILABSER_SET_MHS_REQUEST_CODE = 0x07;
     private static final int SILABSER_SET_BAUDRATE = 0x1E;
+    private static final int SILABSER_FLUSH_REQUEST_CODE = 0x12;
+    
+    private static final int FLUSH_READ_CODE = 0x0a;
+    private static final int FLUSH_WRITE_CODE = 0x05;
     
     /*
      * SILABSER_IFC_ENABLE_REQUEST_CODE
@@ -258,6 +261,19 @@ public class Cp2102SerialDriver extends CommonUsbSerialDriver {
         return true;
     }
 
+    @Override
+    public boolean purgeHwBuffers(boolean purgeReadBuffers,
+            boolean purgeWriteBuffers) throws IOException {
+        int value = (purgeReadBuffers ? FLUSH_READ_CODE : 0)
+                | (purgeWriteBuffers ? FLUSH_WRITE_CODE : 0);
+
+        if (value != 0) {
+            setConfigSingle(SILABSER_FLUSH_REQUEST_CODE, value);
+        }
+
+        return true;
+    }
+
     @Override
     public void setRTS(boolean value) throws IOException {
     }
diff --git a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
index 71e0956..3bc3cc5 100644
--- a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
+++ b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
@@ -132,6 +132,8 @@ public class FtdiSerialDriver extends CommonUsbSerialDriver {
     private static final int SIO_SET_DATA_REQUEST = 4;
 
     private static final int SIO_RESET_SIO = 0;
+    private static final int SIO_RESET_PURGE_RX = 1;
+    private static final int SIO_RESET_PURGE_TX = 2;
 
     public static final int FTDI_DEVICE_OUT_REQTYPE =
             UsbConstants.USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT;
@@ -512,6 +514,27 @@ public class FtdiSerialDriver extends CommonUsbSerialDriver {
     public void setRTS(boolean value) throws IOException {
     }
 
+    @Override
+    public boolean purgeHwBuffers(boolean purgeReadBuffers, boolean purgeWriteBuffers) throws IOException {
+        if (purgeReadBuffers) {
+            int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_RESET_REQUEST,
+                    SIO_RESET_PURGE_RX, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
+            if (result != 0) {
+                throw new IOException("Flushing RX failed: result=" + result);
+            }
+        }
+
+        if (purgeWriteBuffers) {
+            int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_RESET_REQUEST,
+                    SIO_RESET_PURGE_TX, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
+            if (result != 0) {
+                throw new IOException("Flushing RX failed: result=" + result);
+            }
+        }
+
+        return true;
+    }
+
     public static Map<Integer, int[]> getSupportedDevices() {
         final Map<Integer, int[]> supportedDevices = new LinkedHashMap<Integer, int[]>();
         supportedDevices.put(Integer.valueOf(UsbId.VENDOR_FTDI),
diff --git a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/ProlificSerialDriver.java b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/ProlificSerialDriver.java
index 7846931..3347e53 100644
--- a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/ProlificSerialDriver.java
+++ b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/ProlificSerialDriver.java
@@ -158,7 +158,7 @@ public class ProlificSerialDriver extends CommonUsbSerialDriver {
     }
 
     private void resetDevice() throws IOException {
-        flush(true, true);
+        purgeHwBuffers(true, true);
     }
 
     private void setControlLines(int newControlLinesValue) throws IOException {
@@ -494,14 +494,17 @@ public class ProlificSerialDriver extends CommonUsbSerialDriver {
         setControlLines(newControlLinesValue);
     }
 
-    public void flush(boolean flushRX, boolean flushTX) throws IOException {
-        if (flushRX) {
+    @Override
+    public boolean purgeHwBuffers(boolean purgeReadBuffers, boolean purgeWriteBuffers) throws IOException {
+        if (purgeReadBuffers) {
             vendorOut(FLUSH_RX_REQUEST, 0, null);
         }
 
-        if (flushTX) {
+        if (purgeWriteBuffers) {
             vendorOut(FLUSH_TX_REQUEST, 0, null);
         }
+
+        return true;
     }
 
     public static Map<Integer, int[]> getSupportedDevices() {
diff --git a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/UsbSerialDriver.java b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/UsbSerialDriver.java
index e0e13c0..79a5edc 100644
--- a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/UsbSerialDriver.java
+++ b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/UsbSerialDriver.java
@@ -196,5 +196,15 @@ public interface UsbSerialDriver {
      * @throws IOException if an error occurred during writing
      */
     public void setRTS(boolean value) throws IOException;
+    
+    /**
+     * Flush non-transmitted output data and / or non-read input data
+     * @param flushRX {@code true} to flush non-transmitted output data
+     * @param flushTX {@code true} to flush non-read input data
+     * @return {@code true} if the operation was successful, or
+     * {@code false} if the operation is not supported by the driver or device
+     * @throws IOException if an error occurred during flush
+     */
+    public boolean flush(boolean flushRX, boolean flushTX) throws IOException;
 
 }