diff --git a/services/usb/java/com/android/server/usb/UsbDeviceManager.java b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
index df9242d..1d19637 100644
--- a/services/usb/java/com/android/server/usb/UsbDeviceManager.java
+++ b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
@@ -49,6 +49,7 @@
 import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
+import com.android.internal.os.SomeArgs;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.FgThread;
 
@@ -320,6 +321,7 @@
         private boolean mConnected;
         private boolean mHostConnected;
         private boolean mSourcePower;
+        private boolean mSinkPower;
         private boolean mConfigured;
         private boolean mUsbDataUnlocked;
         private String mCurrentFunctions;
@@ -401,7 +403,19 @@
         public void updateHostState(UsbPort port, UsbPortStatus status) {
             boolean hostConnected = status.getCurrentDataRole() == UsbPort.DATA_ROLE_HOST;
             boolean sourcePower = status.getCurrentPowerRole() == UsbPort.POWER_ROLE_SOURCE;
-            obtainMessage(MSG_UPDATE_HOST_STATE, hostConnected ? 1 :0, sourcePower ? 1 :0).sendToTarget();
+            boolean sinkPower = status.getCurrentPowerRole() == UsbPort.POWER_ROLE_SINK;
+
+            if (DEBUG) {
+                Slog.i(TAG, "updateHostState " + port + ": dataRole=" + status.getCurrentDataRole() +
+                        ", powerRole=" + status.getCurrentPowerRole());
+            }
+
+            SomeArgs args = SomeArgs.obtain();
+            args.argi1 = hostConnected ? 1 :0;
+            args.argi2 = sourcePower ? 1 :0;
+            args.argi3 = sinkPower ? 1 :0;
+
+            obtainMessage(MSG_UPDATE_HOST_STATE, args).sendToTarget();
         }
 
         private boolean waitForState(String state) {
@@ -718,8 +732,11 @@
                     }
                     break;
                 case MSG_UPDATE_HOST_STATE:
-                    mHostConnected = (msg.arg1 == 1);
-                    mSourcePower = (msg.arg2 == 1);
+                    SomeArgs args = (SomeArgs) msg.obj;
+                    mHostConnected = (args.argi1 == 1);
+                    mSourcePower = (args.argi2 == 1);
+                    mSinkPower = (args.argi3 == 1);
+                    args.recycle();
                     updateUsbNotification();
                     if (mBootCompleted) {
                         updateUsbStateBroadcastIfNeeded();
@@ -809,6 +826,8 @@
                 }
             } else if (mSourcePower) {
                 id = com.android.internal.R.string.usb_supplying_notification_title;
+            } else if (mSinkPower) {
+                id = com.android.internal.R.string.usb_charging_notification_title;
             }
             if (id != mUsbNotificationId) {
                 // clear notification if title needs changing