u8      init_adpt_in_progress;
        u8      bHaltInProgress;
 
-       void (*intf_start)(struct rtw_adapter *adapter);
-       void (*intf_stop)(struct rtw_adapter *adapter);
-
        struct net_device *pnetdev;
 
        /*  used by rtw_rereg_nd_name related function */
 
 int rtw_drv_register_netdev(struct rtw_adapter *padapter);
 void rtw_ndev_destructor(struct net_device *ndev);
 
+int rtl8723au_inirp_init(struct rtw_adapter *Adapter);
+int rtl8723au_inirp_deinit(struct rtw_adapter *Adapter);
+void rtl8723a_usb_intf_stop(struct rtw_adapter *padapter);
+
 #endif /* _OSDEP_INTF_H_ */
 
        return rst;
 }
 
-int rtl8723au_inirp_init(struct rtw_adapter *Adapter);
-int rtl8723au_inirp_deinit(struct rtw_adapter *Adapter);
 void rtl8723au_chip_configure(struct rtw_adapter *padapter);
 
 #endif /* __USB_OPS_H_ */
 
                        goto netdev_open23a_error;
                }
 
-               if (padapter->intf_start)
-                       padapter->intf_start(padapter);
+               rtl8723au_inirp_init(padapter);
 
                rtw_cfg80211_init_wiphy(padapter);
 
                goto netdev_open23a_error;
        }
 
-       if (padapter->intf_start)
-               padapter->intf_start(padapter);
+       rtl8723au_inirp_init(padapter);
 
        rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
        mod_timer(&padapter->mlmepriv.dynamic_chk_timer,
 {
        rtl8723a_fifo_cleanup(padapter);
 
-       if (padapter->intf_stop)
-               padapter->intf_stop(padapter);
+       rtl8723a_usb_intf_stop(padapter);
 
        /* s5. */
        if (!padapter->bSurpriseRemoved)
 
        usb_put_dev(interface_to_usbdev(usb_intf));
 }
 
-static void usb_intf_start(struct rtw_adapter *padapter)
-{
-       RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_start\n"));
-       rtl8723au_inirp_init(padapter);
-       RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_start\n"));
-}
-
-static void usb_intf_stop(struct rtw_adapter *padapter)
+void rtl8723a_usb_intf_stop(struct rtw_adapter *padapter)
 {
        RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n"));
 
                                        RTW_SCTX_DONE_DRV_STOP);
 
                /* s3. */
-               if (padapter->intf_stop)
-                       padapter->intf_stop(padapter);
+               rtl8723a_usb_intf_stop(padapter);
 
                /* s4. */
                if (!padapter->pwrctrlpriv.bInternalAutoSuspend)
        if (!padapter->HalData)
                goto free_wdev;
 
-       padapter->intf_start = &usb_intf_start;
-       padapter->intf_stop = &usb_intf_stop;
-
        rtl8723au_set_intf_ops(padapter);
 
        /* step read_chip_version */