diff --git a/include/drv_types.h b/include/drv_types.h
index d71d15c..e37762f 100644
--- a/include/drv_types.h
+++ b/include/drv_types.h
@@ -1735,7 +1735,6 @@ int rtw_suspend_free_assoc_resource(_adapter *padapter);
 
 /* HCI Related header file */
 #ifdef CONFIG_USB_HCI
-	#include <usb_osintf.h>
 	#include <usb_ops.h>
 	#include <usb_hal.h>
 #endif
diff --git a/include/usb_osintf.h b/include/usb_osintf.h
deleted file mode 100644
index 7e5feed..0000000
--- a/include/usb_osintf.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2017 Realtek Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- *****************************************************************************/
-#ifndef __USB_OSINTF_H
-#define __USB_OSINTF_H
-
-#include <usb_vendor_req.h>
-
-#define USBD_HALTED(Status) ((ULONG)(Status) >> 30 == 3)
-
-
-u8 usbvendorrequest(struct dvobj_priv *pdvobjpriv, RT_USB_BREQUEST brequest, RT_USB_WVALUE wvalue, u8 windex, void *data, u8 datalen, u8 isdirectionin);
-
-
-#endif
diff --git a/include/usb_vendor_req.h b/include/usb_vendor_req.h
deleted file mode 100644
index a003bfb..0000000
--- a/include/usb_vendor_req.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2017 Realtek Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- *****************************************************************************/
-#ifndef _USB_VENDOR_REQUEST_H_
-#define _USB_VENDOR_REQUEST_H_
-
-/* 4	Set/Get Register related wIndex/Data */
-#define	RT_USB_RESET_MASK_OFF		0
-#define	RT_USB_RESET_MASK_ON		1
-#define	RT_USB_SLEEP_MASK_OFF		0
-#define	RT_USB_SLEEP_MASK_ON		1
-#define	RT_USB_LDO_ON				1
-#define	RT_USB_LDO_OFF				0
-
-/* 4	Set/Get SYSCLK related	wValue or Data */
-#define	RT_USB_SYSCLK_32KHZ		0
-#define	RT_USB_SYSCLK_40MHZ		1
-#define	RT_USB_SYSCLK_60MHZ		2
-
-
-typedef enum _RT_USB_BREQUEST {
-	RT_USB_SET_REGISTER		= 1,
-	RT_USB_SET_SYSCLK		= 2,
-	RT_USB_GET_SYSCLK		= 3,
-	RT_USB_GET_REGISTER		= 4
-} RT_USB_BREQUEST;
-
-
-typedef enum _RT_USB_WVALUE {
-	RT_USB_RESET_MASK	=	1,
-	RT_USB_SLEEP_MASK	=	2,
-	RT_USB_USB_HRCPWM	=	3,
-	RT_USB_LDO			=	4,
-	RT_USB_BOOT_TYPE	=	5
-} RT_USB_WVALUE;
-
-
-#if 0
-BOOLEAN usbvendorrequest(PCE_USB_DEVICE	CEdevice, RT_USB_BREQUEST bRequest, RT_USB_WVALUE wValue, UCHAR wIndex, PVOID Data, UCHAR DataLength, BOOLEAN isDirectionIn);
-BOOLEAN CEusbGetStatusRequest(PCE_USB_DEVICE CEdevice, IN USHORT Op, IN USHORT Index, PVOID Data);
-BOOLEAN CEusbFeatureRequest(PCE_USB_DEVICE CEdevice, IN USHORT Op, IN USHORT FeatureSelector, IN USHORT Index);
-BOOLEAN CEusbGetDescriptorRequest(PCE_USB_DEVICE CEdevice, IN short urbLength, IN UCHAR DescriptorType, IN UCHAR Index, IN USHORT LanguageId, IN PVOID  TransferBuffer, IN ULONG TransferBufferLength);
-#endif
-
-#endif