diff --git a/hal/hal_hci/hal_usb.c b/hal/hal_hci/hal_usb.c
index e47135b..3534c17 100644
--- a/hal/hal_hci/hal_usb.c
+++ b/hal/hal_hci/hal_usb.c
@@ -35,23 +35,6 @@ int	usb_init_recv_priv(_adapter *padapter, u16 ini_in_buf_sz)
 #endif /* CONFIG_RX_INDICATE_QUEUE */
 #endif /* PLATFORM_FREEBSD */
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-#ifdef PLATFORM_LINUX
-	precvpriv->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (precvpriv->int_in_urb == NULL) {
-		res = _FAIL;
-		RTW_INFO("alloc_urb for interrupt in endpoint fail !!!!\n");
-		goto exit;
-	}
-#endif /* PLATFORM_LINUX */
-	precvpriv->int_in_buf = rtw_zmalloc(ini_in_buf_sz);
-	if (precvpriv->int_in_buf == NULL) {
-		res = _FAIL;
-		RTW_INFO("alloc_mem for interrupt in endpoint fail !!!!\n");
-		goto exit;
-	}
-#endif /* CONFIG_USB_INTERRUPT_IN_PIPE */
-
 	/* init recv_buf */
 	_rtw_init_queue(&precvpriv->free_recv_buf_queue);
 	_rtw_init_queue(&precvpriv->recv_buf_pending_queue);
@@ -162,14 +145,6 @@ void usb_free_recv_priv(_adapter *padapter, u16 ini_in_buf_sz)
 	if (precvpriv->pallocated_recv_buf)
 		rtw_mfree(precvpriv->pallocated_recv_buf, NR_RECVBUFF * sizeof(struct recv_buf) + 4);
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-#ifdef PLATFORM_LINUX
-	if (precvpriv->int_in_urb)
-		usb_free_urb(precvpriv->int_in_urb);
-#endif
-	if (precvpriv->int_in_buf)
-		rtw_mfree(precvpriv->int_in_buf, ini_in_buf_sz);
-#endif /* CONFIG_USB_INTERRUPT_IN_PIPE */
 
 #ifdef PLATFORM_LINUX
 
diff --git a/hal/rtl8814a/usb/usb_halinit.c b/hal/rtl8814a/usb/usb_halinit.c
index 15c21ea..772935a 100644
--- a/hal/rtl8814a/usb/usb_halinit.c
+++ b/hal/rtl8814a/usb/usb_halinit.c
@@ -1776,35 +1776,31 @@ u32 rtl8814au_hal_deinit(PADAPTER Adapter)
 			if((pwrctl->bHWPwrPindetect ) && (pwrctl->bHWPowerdown))
 				rtl8814au_hw_power_down(Adapter);
 		}
-	}		
+	}
 	return _SUCCESS;
  }
 
 
 unsigned int rtl8814au_inirp_init(PADAPTER Adapter)
-{	
-	u8 i;	
+{
+	u8 i;
 	struct recv_buf *precvbuf;
 	uint	status;
 	struct dvobj_priv *pdev= adapter_to_dvobj(Adapter);
 	struct intf_hdl * pintfhdl=&Adapter->iopriv.intf;
-	struct recv_priv *precvpriv = &(Adapter->recvpriv);	
+	struct recv_priv *precvpriv = &(Adapter->recvpriv);
 	u32 (*_read_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pmem);
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-	HAL_DATA_TYPE *pHalData = GET_HAL_DATA(Adapter);
-	u32 (*_read_interrupt)(struct intf_hdl *pintfhdl, u32 addr);
-#endif
 
 	_read_port = pintfhdl->io_ops._read_port;
 
 	status = _SUCCESS;
 
-	RT_TRACE(_module_hci_hal_init_c_,_drv_info_,("===> usb_inirp_init \n"));	
-		
+	RT_TRACE(_module_hci_hal_init_c_,_drv_info_,("===> usb_inirp_init \n"));
+
 	precvpriv->ff_hwaddr = RECV_BULK_IN_ADDR;
 
-	//issue Rx irp to receive data	
-	precvbuf = (struct recv_buf *)precvpriv->precv_buf;	
+	//issue Rx irp to receive data
+	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
 	for(i=0; i<NR_RECVBUFF; i++)
 	{
 		if(_read_port(pintfhdl, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf) == _FALSE )
@@ -1813,27 +1809,13 @@ unsigned int rtl8814au_inirp_init(PADAPTER Adapter)
 			status = _FAIL;
 			goto exit;
 		}
-		
-		precvbuf++;		
+
+		precvbuf++;
 		precvpriv->free_recv_buf_queue_cnt--;
 	}
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-	if (pdev->RtInPipe[REALTEK_USB_IN_INT_EP_IDX] != 0x05) {
-		status = _FAIL;
-		RTW_INFO("%s =>Warning !! Have not USB Int-IN pipe, RtIntInPipe(%d)!!!\n", __func__, pdev->RtInPipe[REALTEK_USB_IN_INT_EP_IDX]);
-		goto exit;
-	}	
-	_read_interrupt = pintfhdl->io_ops._read_interrupt;
-	if(_read_interrupt(pintfhdl, RECV_INT_IN_ADDR) == _FALSE )
-	{
-		RT_TRACE(_module_hci_hal_init_c_,_drv_err_,("usb_rx_init: usb_read_interrupt error \n"));
-		status = _FAIL;
-	}
-#endif
-
 exit:
-	
+
 	RT_TRACE(_module_hci_hal_init_c_,_drv_info_,("<=== usb_inirp_init \n"));
 
 	return status;
@@ -1841,9 +1823,9 @@ exit:
 }
 
 unsigned int rtl8814au_inirp_deinit(PADAPTER Adapter)
-{	
+{
 	RT_TRACE(_module_hci_hal_init_c_,_drv_info_,("\n ===> usb_rx_deinit \n"));
-	
+
 	rtw_read_port_cancel(Adapter);
 
 	RT_TRACE(_module_hci_hal_init_c_,_drv_info_,("\n <=== usb_rx_deinit \n"));
@@ -1869,8 +1851,8 @@ hal_ReadIDs_8814AU(
 	{
 		pHalData->EEPROMVID = EF2Byte( *(pu2Byte)&PROMContent[EEPROM_VID_8814AU] );
 		pHalData->EEPROMPID = EF2Byte( *(pu2Byte)&PROMContent[EEPROM_PID_8814AU] );		
-		
-		// Customer ID, 0x00 and 0xff are reserved for Realtek. 		
+
+		// Customer ID, 0x00 and 0xff are reserved for Realtek.
 		pHalData->EEPROMCustomerID = *(pu1Byte)&PROMContent[EEPROM_CustomID_8814];
 		pHalData->EEPROMSubCustomerID = EEPROM_Default_SubCustomerID;
 	}
@@ -1879,11 +1861,11 @@ hal_ReadIDs_8814AU(
 		pHalData->EEPROMVID 			= EEPROM_Default_VID;
 		pHalData->EEPROMPID 			= EEPROM_Default_PID;
 
-		// Customer ID, 0x00 and 0xff are reserved for Realtek. 		
+		// Customer ID, 0x00 and 0xff are reserved for Realtek.
 		pHalData->EEPROMCustomerID		= EEPROM_Default_CustomerID;
 		pHalData->EEPROMSubCustomerID	= EEPROM_Default_SubCustomerID;
 	}
-	
+
 	RTW_INFO("VID = 0x%04X, PID = 0x%04X\n", pHalData->EEPROMVID, pHalData->EEPROMPID);
 	RTW_INFO("Customer ID: 0x%02X, SubCustomer ID: 0x%02X\n", pHalData->EEPROMCustomerID, pHalData->EEPROMSubCustomerID);
 }
@@ -1904,7 +1886,7 @@ hal_InitPGData_8814A(
 	//#if ((DEV_BUS_TYPE==RT_USB_INTERFACE || DEV_BUS_TYPE==RT_SDIO_INTERFACE))  && (MP_DRIVER != 1)
 		//if(hal_ReadeFuse_8814A(pAdapter) == _FAIL)
 	//#endif
-		
+
 		// Read EFUSE real map to shadow.
 		EFUSE_ShadowMapUpdate(padapter, EFUSE_WIFI, _FALSE);
 	}
@@ -1928,10 +1910,10 @@ hal_CustomizedBehavior_8814AU(
 	IN	PADAPTER	Adapter
 	)
 {
-	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(Adapter);	
+	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(Adapter);
 	struct led_priv	*pledpriv = &(Adapter->ledpriv);
 
-	
+
 	// Led mode
 	switch(pHalData->CustomerID)
 	{
@@ -1952,9 +1934,9 @@ hal_CustomizeByCustomerID_8814AU(
 	)
 {
 	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(pAdapter);
-	
+
 	RTW_INFO("PID= 0x%x, VID=  %x\n",pHalData->EEPROMPID,pHalData->EEPROMVID);
-	
+
 	//	Decide CustomerID according to VID/DID or EEPROM
 	switch(pHalData->EEPROMCustomerID)
 	{
@@ -1968,17 +1950,17 @@ hal_CustomizeByCustomerID_8814AU(
 			else if((pHalData->EEPROMVID == 0x0BFF) && (pHalData->EEPROMPID == 0x8160))
 			{
 				pHalData->CustomerID = RT_CID_CHINA_MOBILE;
-			}	
+			}
 			else if((pHalData->EEPROMVID == 0x0BDA) &&	(pHalData->EEPROMPID == 0x5088))
 				pHalData->CustomerID = RT_CID_CC_C;
-			
+
 			break;
 		case EEPROM_CID_WHQL:
 			//padapter->bInHctTest = _TRUE;
-	
+
 			//pMgntInfo->bSupportTurboMode = _FALSE;
 			//pMgntInfo->bAutoTurboBy8186 = _FALSE;
-	
+
 			//pMgntInfo->PowerSaveControl.bInactivePs = _FALSE;
 			//pMgntInfo->PowerSaveControl.bIPSModeBackup = _FALSE;
 			//pMgntInfo->PowerSaveControl.bLeisurePs = _FALSE;
diff --git a/hal/rtl8814a/usb/usb_ops_linux.c b/hal/rtl8814a/usb/usb_ops_linux.c
index a7f7293..71b8abd 100644
--- a/hal/rtl8814a/usb/usb_ops_linux.c
+++ b/hal/rtl8814a/usb/usb_ops_linux.c
@@ -76,7 +76,7 @@ void interrupt_handler_8814au(_adapter *padapter, u16 pkt_len, u8 *pbuf)
 			if (pHalData->IntArray[0] & IMR_TBDER_88E)
 				RTW_INFO("%s: HISR_TXBCNERR\n", __func__);
 #endif /* 0 */
-		
+
 
 			if(check_fwstate(pmlmepriv, WIFI_AP_STATE))
 			{
@@ -249,7 +249,7 @@ _exit_recvbuf2recvframe:
 #endif
 
 void rtl8814au_xmit_tasklet(void *priv)
-{	
+{
 	int ret = _FALSE;
 	_adapter *padapter = (_adapter*)priv;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
@@ -269,41 +269,37 @@ void rtl8814au_xmit_tasklet(void *priv)
 
 		if(ret==_FALSE)
 			break;
-		
+
 	}
-	
+
 }
 
 void rtl8814au_set_intf_ops(struct _io_ops	*pops)
-{		
-	_rtw_memset((u8 *)pops, 0, sizeof(struct _io_ops));	
+{
+	_rtw_memset((u8 *)pops, 0, sizeof(struct _io_ops));
 
 	pops->_read8 = &usb_read8;
 	pops->_read16 = &usb_read16;
 	pops->_read32 = &usb_read32;
 	pops->_read_mem = &usb_read_mem;
-	pops->_read_port = &usb_read_port;	
-	
+	pops->_read_port = &usb_read_port;
+
 	pops->_write8 = &usb_write8;
 	pops->_write16 = &usb_write16;
 	pops->_write32 = &usb_write32;
 	pops->_writeN = &usb_writeN;
-	
-#ifdef CONFIG_USB_SUPPORT_ASYNC_VDN_REQ	
+
+#ifdef CONFIG_USB_SUPPORT_ASYNC_VDN_REQ
 	pops->_write8_async= &usb_async_write8;
 	pops->_write16_async = &usb_async_write16;
 	pops->_write32_async = &usb_async_write32;
-#endif	
+#endif
 	pops->_write_mem = &usb_write_mem;
 	pops->_write_port = &usb_write_port;
 
 	pops->_read_port_cancel = &usb_read_port_cancel;
 	pops->_write_port_cancel = &usb_write_port_cancel;
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-	pops->_read_interrupt = &usb_read_interrupt;
-#endif
-
 }
 
 void rtl8814au_set_hw_type(struct dvobj_priv *pdvobj)
diff --git a/include/rtw_recv.h b/include/rtw_recv.h
index 2d170f6..4cee802 100644
--- a/include/rtw_recv.h
+++ b/include/rtw_recv.h
@@ -376,14 +376,6 @@ struct recv_priv {
 	uint	ff_hwaddr;
 	ATOMIC_T	rx_pending_cnt;
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-#ifdef PLATFORM_LINUX
-	PURB	int_in_urb;
-#endif
-
-	u8	*int_in_buf;
-#endif /* CONFIG_USB_INTERRUPT_IN_PIPE */
-
 #endif
 #if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
 #ifdef PLATFORM_FREEBSD
diff --git a/include/usb_ops_linux.h b/include/usb_ops_linux.h
index bf59ca0..f9ece6e 100644
--- a/include/usb_ops_linux.h
+++ b/include/usb_ops_linux.h
@@ -91,8 +91,4 @@ int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata);
 u32 usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem);
 void usb_recv_tasklet(void *priv);
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-void usb_read_interrupt_complete(struct urb *purb, struct pt_regs *regs);
-u32 usb_read_interrupt(struct intf_hdl *pintfhdl, u32 addr);
-#endif
 #endif
diff --git a/os_dep/linux/usb_ops_linux.c b/os_dep/linux/usb_ops_linux.c
index 3e586ba..7dba139 100644
--- a/os_dep/linux/usb_ops_linux.c
+++ b/os_dep/linux/usb_ops_linux.c
@@ -399,9 +399,6 @@ void usb_read_port_cancel(struct intf_hdl *pintfhdl)
 		precvbuf++;
 	}
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-	usb_kill_urb(padapter->recvpriv.int_in_urb);
-#endif
 }
 
 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
@@ -1056,87 +1053,6 @@ exit:
 }
 #endif /* CONFIG_USE_USB_BUFFER_ALLOC_RX */
 
-#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-void usb_read_interrupt_complete(struct urb *purb, struct pt_regs *regs)
-{
-	int	err;
-	_adapter	*padapter = (_adapter *)purb->context;
-
-	if (RTW_CANNOT_RX(padapter)) {
-		RTW_INFO("%s() RX Warning! bDriverStopped(%s) OR bSurpriseRemoved(%s)\n"
-			, __func__
-			, rtw_is_drv_stopped(padapter) ? "True" : "False"
-			, rtw_is_surprise_removed(padapter) ? "True" : "False");
-
-		return;
-	}
-
-	if (purb->status == 0) {/*SUCCESS*/
-		if (purb->actual_length > INTERRUPT_MSG_FORMAT_LEN)
-			RTW_INFO("usb_read_interrupt_complete: purb->actual_length > INTERRUPT_MSG_FORMAT_LEN(%d)\n", INTERRUPT_MSG_FORMAT_LEN);
-
-		rtw_hal_interrupt_handler(padapter, purb->actual_length, purb->transfer_buffer);
-
-		err = usb_submit_urb(purb, GFP_ATOMIC);
-		if ((err) && (err != (-EPERM)))
-			RTW_INFO("cannot submit interrupt in-token(err = 0x%08x),urb_status = %d\n", err, purb->status);
-	} else {
-		RTW_INFO("###=> usb_read_interrupt_complete => urb status(%d)\n", purb->status);
-
-		switch (purb->status) {
-		case -EINVAL:
-		case -EPIPE:
-		case -ENODEV:
-		case -ESHUTDOWN:
-		case -ENOENT:
-			rtw_set_drv_stopped(padapter);
-			break;
-		case -EPROTO:
-			break;
-		case -EINPROGRESS:
-			RTW_INFO("ERROR: URB IS IN PROGRESS!/n");
-			break;
-		default:
-			break;
-		}
-	}
-}
-
-u32 usb_read_interrupt(struct intf_hdl *pintfhdl, u32 addr)
-{
-	int	err;
-	unsigned int pipe;
-	u32	ret = _SUCCESS;
-	_adapter			*adapter = pintfhdl->padapter;
-	struct dvobj_priv	*pdvobj = adapter_to_dvobj(adapter);
-	struct recv_priv	*precvpriv = &adapter->recvpriv;
-	struct usb_device	*pusbd = pdvobj->pusbdev;
-
-
-	if (RTW_CANNOT_RX(adapter)) {
-		return _FAIL;
-	}
-
-	/*translate DMA FIFO addr to pipehandle*/
-	pipe = ffaddr2pipehdl(pdvobj, addr);
-
-	usb_fill_int_urb(precvpriv->int_in_urb, pusbd, pipe,
-			precvpriv->int_in_buf,
-			INTERRUPT_MSG_FORMAT_LEN,
-			usb_read_interrupt_complete,
-			adapter,
-			1);
-
-	err = usb_submit_urb(precvpriv->int_in_urb, GFP_ATOMIC);
-	if ((err) && (err != (-EPERM))) {
-		RTW_INFO("cannot submit interrupt in-token(err = 0x%08x), urb_status = %d\n", err, precvpriv->int_in_urb->status);
-		ret = _FAIL;
-	}
-
-	return ret;
-}
-#endif /* CONFIG_USB_INTERRUPT_IN_PIPE */
-
 
 int recvbuf2recvframe(PADAPTER padapter, void *ptr)
 {