diff --git a/configs/stm32f4discovery/README.txt b/configs/stm32f4discovery/README.txt
index c591b500cbb..67dce3c7d3d 100644
--- a/configs/stm32f4discovery/README.txt
+++ b/configs/stm32f4discovery/README.txt
@@ -1603,16 +1603,31 @@ Where <subdir> is one of the following:
        a USB host on the STM32F4Discovery, including support for a mass storage
        class driver:
 
-       CONFIG_USBDEV=n          : Make sure tht USB device support is disabled
-       CONFIG_USBHOST=y         : Enable USB host support
-       CONFIG_USBHOST_MSC=y     : Enable the mass storage class
-       CONFIG_STM32_OTGFS=y     : Enable the STM32 USB OTG FS block
-       CONFIG_STM32_SYSCFG=y    : Needed for all USB OTF FS support
-       CONFIG_SCHED_WORKQUEUE=y : High priority worker thread support is required
-       CONFIG_SCHED_HPWORK=y    :   for the mass storage class driver.
-       CONFIG_NSH_ARCHINIT=y    : Architecture specific USB initialization
-                                  is needed for NSH
-       CONFIG_FS_FAT=y          : Needed by the USB host mass storage class.
+       Device Drivers ->
+         CONFIG_USBDEV=n          : Make sure tht USB device support is disabled
+         CONFIG_USBHOST=y         : Enable USB host support
+         CONFIG_USBHOST_ISOC_DISABLE=y
+
+       Device Drivers -> USB Host Driver Support
+         CONFIG_USBHOST_MSC=y     : Enable the mass storage class
+
+       System Type -> STM32 Peripheral Support
+         CONFIG_STM32_OTGFS=y     : Enable the STM32 USB OTG FS block
+         CONFIG_STM32_SYSCFG=y    : Needed for all USB OTF FS support
+
+       RTOS Features -> Work Queue Support
+         CONFIG_SCHED_WORKQUEUE=y : High priority worker thread support is required
+         CONFIG_SCHED_HPWORK=y    :   for the mass storage class driver.
+
+       File Systems ->
+         CONFIG_FS_FAT=y          : Needed by the USB host mass storage class.
+
+       Board Selection ->
+         CONFIG_LIB_BOARDCTL=y    : Needed for CONFIG_NSH_ARCHINIT
+
+       Application Configuration -> NSH Library
+         CONFIG_NSH_ARCHINIT=y    : Architecture specific USB initialization
+                                  : is needed for NSH
 
        With those changes, you can use NSH with a FLASH pen driver as shown
        belong.  Here NSH is started with nothing in the USB host slot: