diff --git a/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java b/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
index 11a3e41..580062a 100644
--- a/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
+++ b/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
@@ -37,30 +37,30 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
     public CdcAcmSerialDriver(UsbDevice device) {
         mDevice = device;
         mPorts = new ArrayList<>();
-        int ports = countPorts(device);
-        for (int port = 0; port < ports; port++) {
-            mPorts.add(new CdcAcmSerialPort(mDevice, port));
-        }
-        if (mPorts.size() == 0) {
-            mPorts.add(new CdcAcmSerialPort(mDevice, -1));
-        }
-    }
+        int ports = countPorts(device);
+        for (int port = 0; port < ports; port++) {
+            mPorts.add(new CdcAcmSerialPort(mDevice, port));
+        }
+        if (mPorts.size() == 0) {
+            mPorts.add(new CdcAcmSerialPort(mDevice, -1));
+        }
+    }
 
-    @SuppressWarnings({"unused"})
-    public static boolean probe(UsbDevice device) {
-        return countPorts(device) > 0;
-    }
-
-    private static int countPorts(UsbDevice device) {
+    @SuppressWarnings({"unused"})
+    public static boolean probe(UsbDevice device) {
+        return countPorts(device) > 0;
+    }
+
+    private static int countPorts(UsbDevice device) {
         int controlInterfaceCount = 0;
         int dataInterfaceCount = 0;
-        for (int i = 0; i < device.getInterfaceCount(); i++) {
-            if (device.getInterface(i).getInterfaceClass() == UsbConstants.USB_CLASS_COMM)
+        for (int i = 0; i < device.getInterfaceCount(); i++) {
+            if (device.getInterface(i).getInterfaceClass() == UsbConstants.USB_CLASS_COMM)
                 controlInterfaceCount++;
-            if (device.getInterface(i).getInterfaceClass() == UsbConstants.USB_CLASS_CDC_DATA)
+            if (device.getInterface(i).getInterfaceClass() == UsbConstants.USB_CLASS_CDC_DATA)
                 dataInterfaceCount++;
         }
-        return Math.min(controlInterfaceCount, dataInterfaceCount);
+        return Math.min(controlInterfaceCount, dataInterfaceCount);
     }
 
     @Override
@@ -141,7 +141,7 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
         private void openInterface() throws IOException {
             Log.d(TAG, "claiming interfaces, count=" + mDevice.getInterfaceCount());
 
-            int rndisControlInterfaceCount = 0;
+            int rndisControlInterfaceCount = 0;
             int controlInterfaceCount = 0;
             int dataInterfaceCount = 0;
             mControlInterface = null;
@@ -156,22 +156,22 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
                     controlInterfaceCount++;
                 }
                 if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_CDC_DATA) {
-                    if(dataInterfaceCount == mPortNumber + rndisControlInterfaceCount) {
+                    if(dataInterfaceCount == mPortNumber + rndisControlInterfaceCount) {
                         mDataInterface = usbInterface;
                     }
                     dataInterfaceCount++;
                 }
-                if (mDataInterface == null &&
-                        usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_WIRELESS_CONTROLLER &&
-                        usbInterface.getInterfaceSubclass() == 1 &&
-                        usbInterface.getInterfaceProtocol() == 3) {
-                    /*
-                     * RNDIS is a MSFT variant of CDC-ACM states the Linux kernel in rndis_host.c
-                     * The devices provide IAD descriptors to indicate consecutive interfaces belonging
-                     * together, but this is not exposed to Java. So simply skip related data interfaces.
-                     */
-                    rndisControlInterfaceCount++;
-                }
+                if (mDataInterface == null &&
+                        usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_WIRELESS_CONTROLLER &&
+                        usbInterface.getInterfaceSubclass() == 1 &&
+                        usbInterface.getInterfaceProtocol() == 3) {
+                    /*
+                     * RNDIS is a MSFT variant of CDC-ACM states the Linux kernel in rndis_host.c
+                     * The devices provide IAD descriptors to indicate consecutive interfaces belonging
+                     * together, but this is not exposed to Java. So simply skip related data interfaces.
+                     */
+                    rndisControlInterfaceCount++;
+                }
             }
 
             if(mControlInterface == null) {
@@ -306,9 +306,9 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
 
     }
 
-    @SuppressWarnings({"unused"})
+    @SuppressWarnings({"unused"})
     public static Map<Integer, int[]> getSupportedDevices() {
-        return new LinkedHashMap<>();
+        return new LinkedHashMap<>();
     }
 
 }