Assume the 1st USB device configuration has been selected on Android.

device/usb/usb_device_android.cc

Index: device/usb/usb_device_android.cc
diff --git a/device/usb/usb_device_android.cc b/device/usb/usb_device_android.cc
index 7bda3f48b07544da6b7dbb579c1afd0c2a06c9e3..7f98ec6f5d02f4092f4b73282247d9ca444bd9d0 100644
--- a/device/usb/usb_device_android.cc
+++ b/device/usb/usb_device_android.cc
@@ -144,6 +144,9 @@ UsbDeviceAndroid::UsbDeviceAndroid(
     }
     descriptor_.configurations.push_back(config);
   }
+
+  if (configurations().size() > 0)
+    ActiveConfigurationChanged(configurations()[0].configuration_value);
 }
 
 UsbDeviceAndroid::~UsbDeviceAndroid() {}