diff --git a/firmware/export/config-e200.h b/firmware/export/config-e200.h
index db6dfbe913..fdcfa840eb 100644
--- a/firmware/export/config-e200.h
+++ b/firmware/export/config-e200.h
@@ -148,12 +148,15 @@
 #define FIRMWARE_OFFSET_FILE_DATA   0x8
 
 /* #define USB_IPODSTYLE */
-/*#define HAVE_USBSTACK*/
-#define USBSTACK_CAPS CONTROLLER_DEVICE
 
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-h10.h b/firmware/export/config-h10.h
index b54397f46c..c00e365190 100644
--- a/firmware/export/config-h10.h
+++ b/firmware/export/config-h10.h
@@ -148,6 +148,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-h10_5gb.h b/firmware/export/config-h10_5gb.h
index d45b6e3064..cb5d4ecae0 100644
--- a/firmware/export/config-h10_5gb.h
+++ b/firmware/export/config-h10_5gb.h
@@ -131,6 +131,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+ 
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-ipod4g.h b/firmware/export/config-ipod4g.h
index 84c38f8506..588f8316b5 100644
--- a/firmware/export/config-ipod4g.h
+++ b/firmware/export/config-ipod4g.h
@@ -130,6 +130,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-ipodcolor.h b/firmware/export/config-ipodcolor.h
index c1098c71fe..728ff46413 100644
--- a/firmware/export/config-ipodcolor.h
+++ b/firmware/export/config-ipodcolor.h
@@ -121,6 +121,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-ipodmini.h b/firmware/export/config-ipodmini.h
index 54d0e2c230..a7d86427b3 100644
--- a/firmware/export/config-ipodmini.h
+++ b/firmware/export/config-ipodmini.h
@@ -126,6 +126,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-ipodmini2g.h b/firmware/export/config-ipodmini2g.h
index 5a851fffee..d8c5f9f755 100644
--- a/firmware/export/config-ipodmini2g.h
+++ b/firmware/export/config-ipodmini2g.h
@@ -126,6 +126,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-ipodnano.h b/firmware/export/config-ipodnano.h
index d3c229593f..fcba445bce 100644
--- a/firmware/export/config-ipodnano.h
+++ b/firmware/export/config-ipodnano.h
@@ -127,6 +127,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL
 
diff --git a/firmware/export/config-ipodvideo.h b/firmware/export/config-ipodvideo.h
index b792f6f5dc..71cb8abf39 100644
--- a/firmware/export/config-ipodvideo.h
+++ b/firmware/export/config-ipodvideo.h
@@ -131,6 +131,11 @@
 /* USB On-the-go */
 #define CONFIG_USBOTG USBOTG_ARC
 
+/* enable these for the experimental usb stack
+#define HAVE_USBSTACK
+#define USBSTACK_CAPS CONTROLLER_DEVICE
+*/
+
 /* Virtual LED (icon) */
 #define CONFIG_LED LED_VIRTUAL