diff --git a/configs/mcu123-lpc214x/usbserial/defconfig b/configs/mcu123-lpc214x/usbserial/defconfig
index a93bf6e9659..ba5289f1404 100644
--- a/configs/mcu123-lpc214x/usbserial/defconfig
+++ b/configs/mcu123-lpc214x/usbserial/defconfig
@@ -485,6 +485,22 @@ CONFIG_EXAMPLES_NSH_FATSECTSIZE=512
 CONFIG_EXAMPLES_NSH_FATNSECTORS=1024
 CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp
 
+#
+# Settings for examples/usbserial
+#
+# CONFIG_EXAMPLES_USBSERIAL_INONLY
+#    Only verify IN (device-to-host) data transfers.  Default: both
+# CONFIG_EXAMPLES_USBSERIAL_OUTONLY
+#    Only verify OUT (host-to-device) data transfers.  Default: both
+# CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL
+#    Send only small, single packet messages.  Default: Send large and small.
+# CONFIG_EXAMPLES_USBSERIAL_ONLYBIG
+#    Send only large, multi-packet messages.  Default: Send large and small.
+CONFIG_EXAMPLES_USBSERIAL_INONLY=n
+CONFIG_EXAMPLES_USBSERIAL_OUTONLY=n
+CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL=n
+CONFIG_EXAMPLES_USBSERIAL_ONLYBIG=n
+
 #
 # Stack and heap information
 #