diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index f9163a8..f88d0c1 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -27,6 +27,7 @@
 #include <linux/string.h>
 
 #include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
 #include <linux/usb/gadget.h>
 
 
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 5b8776e..b656c8b 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -23,6 +23,7 @@
 
 #include <common.h>
 #include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
 #include <asm/errno.h>
 #include <linux/usb/gadget.h>
 #include <asm/unaligned.h>
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 9fb0e80..f693fea 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -24,6 +24,7 @@
 #include <asm/errno.h>
 #include <linux/netdevice.h>
 #include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
 #include <linux/usb/cdc.h>
 #include <linux/usb/gadget.h>
 #include <net.h>
diff --git a/drivers/usb/gadget/s3c_udc_otg.c b/drivers/usb/gadget/s3c_udc_otg.c
index 9d11aea..6b922d2 100644
--- a/drivers/usb/gadget/s3c_udc_otg.c
+++ b/drivers/usb/gadget/s3c_udc_otg.c
@@ -37,6 +37,7 @@
 #include <malloc.h>
 
 #include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
 #include <linux/usb/gadget.h>
 
 #include <asm/byteorder.h>
diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c
index 95555cf..4dbe060 100644
--- a/drivers/usb/gadget/usbstring.c
+++ b/drivers/usb/gadget/usbstring.c
@@ -13,6 +13,7 @@
 #include <common.h>
 #include <asm/errno.h>
 #include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
 #include <linux/usb/gadget.h>
 
 #include <asm/unaligned.h>
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 49b7483..ce1d1e1 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -204,28 +204,6 @@
 	__u8  bDescriptorType;
 } __attribute__ ((packed));
 
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_DEVICE: Device descriptor */
-struct usb_device_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 bcdUSB;
-	__u8  bDeviceClass;
-	__u8  bDeviceSubClass;
-	__u8  bDeviceProtocol;
-	__u8  bMaxPacketSize0;
-	__le16 idVendor;
-	__le16 idProduct;
-	__le16 bcdDevice;
-	__u8  iManufacturer;
-	__u8  iProduct;
-	__u8  iSerialNumber;
-	__u8  bNumConfigurations;
-} __attribute__ ((packed));
-
 #define USB_DT_DEVICE_SIZE		18
 
 
@@ -282,56 +260,11 @@
 #define USB_CONFIG_ATT_WAKEUP		(1 << 5)	/* can wakeup */
 #define USB_CONFIG_ATT_BATTERY		(1 << 4)	/* battery powered */
 
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_STRING: String descriptor */
-struct usb_string_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 wData[1];		/* UTF-16LE encoded */
-} __attribute__ ((packed));
-
 /* note that "string" zero is special, it holds language codes that
  * the device supports, not Unicode characters.
  */
 
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_INTERFACE: Interface descriptor */
-struct usb_interface_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bInterfaceNumber;
-	__u8  bAlternateSetting;
-	__u8  bNumEndpoints;
-	__u8  bInterfaceClass;
-	__u8  bInterfaceSubClass;
-	__u8  bInterfaceProtocol;
-	__u8  iInterface;
-} __attribute__ ((packed));
-
 #define USB_DT_INTERFACE_SIZE		9
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_ENDPOINT: Endpoint descriptor */
-struct usb_endpoint_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bEndpointAddress;
-	__u8  bmAttributes;
-	__le16 wMaxPacketSize;
-	__u8  bInterval;
-
-	/* NOTE:  these two are _only_ in audio endpoints. */
-	/* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
-	__u8  bRefresh;
-	__u8  bSynchAddress;
-} __attribute__ ((packed));
-
 #define USB_DT_ENDPOINT_SIZE		7
 #define USB_DT_ENDPOINT_AUDIO_SIZE	9	/* Audio extension */
 
diff --git a/include/usb/s3c_udc.h b/include/usb/s3c_udc.h
index 6c973b6..3e6135a 100644
--- a/include/usb/s3c_udc.h
+++ b/include/usb/s3c_udc.h
@@ -24,6 +24,7 @@
 
 #include <asm/errno.h>
 #include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
 #include <linux/usb/gadget.h>
 #include <linux/list.h>
 #include <usb/lin_gadget_compat.h>