diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c
index 1822356cd..52ea8b7fa 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c
@@ -13,9 +13,12 @@ Others: CherryUSB third-party/cherryusb/core/usbh_core.c for references
 History: 
 1. Date: 2024-06-18
 Author: AIIT XUOS Lab
-Modification: 
-	Modify function usbh_enumerate usbh_hport_activate_ep0 usbh_hport_deactivate_ep0 and usbh_hport_activate_epx, for select host controller function.
-	new function usbh_control_transfer_msg, for references usbh_control_transfer, to select host controller function by type.
+Modification: Modify function usbh_enumerate usbh_hport_activate_ep0 usbh_hport_deactivate_ep0 and usbh_hport_activate_epx, for select host controller function.
+              New function usbh_control_transfer_msg, for references usbh_control_transfer, to select host controller function by type.
+
+2. Date: 2024-06-19
+Author: AIIT XUOS Lab
+Modification: Extract the functions of the host controller to core.
 *************************************************/
 
 #include "usbh_core.h"
@@ -589,7 +592,6 @@ int usbh_enumerate(struct usbh_hubport *hport)
 #ifdef CONFIG_USBHOST_XHCI
     if (USB_HC_XHCI == usb->usb_hc_type) {
         extern int usbh_get_xhci_devaddr(usbh_pipe_t * pipe);
- 
         /* Assign a function address to the device connected to this port */
         dev_addr = usbh_get_xhci_devaddr(hport->ep0);
         if (dev_addr < 0) {
@@ -1008,3 +1010,49 @@ int lsusb(int argc, char **argv)
 
     return 0;
 }
+
+/* xhci hardware init */
+int usb_hc_init(uint32_t id)
+{
+    return 0;
+}
+
+int usbh_roothub_control(struct usbh_bus *usb, struct usb_setup_packet *setup, uint8_t *buf)
+{
+    return 0;
+}
+
+int usbh_ep_pipe_reconfigure(struct usbh_bus *usb, usbh_pipe_t pipe, uint8_t dev_addr, uint8_t mtu, uint8_t speed)
+{
+    return 0;
+}
+
+int usbh_pipe_alloc(usbh_pipe_t *pipe, const struct usbh_endpoint_cfg *ep_cfg)
+{
+    return 0;
+}
+
+int usbh_get_xhci_devaddr(usbh_pipe_t *pipe)
+{
+    return 0;
+}
+
+int usbh_pipe_free(usbh_pipe_t pipe)
+{
+    return 0;
+}
+
+int usbh_submit_urb(struct usbh_urb *urb)
+{
+    return 0;
+}
+
+int usbh_kill_urb(struct usbh_urb *urb)
+{
+    return 0;
+}
+
+void USBH_IRQHandler(void *param)
+{
+}
+
diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/usb_hc_xhci.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/usb_hc_xhci.c
index 563fc6692..4e5d109c7 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/usb_hc_xhci.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/usb_hc_xhci.c
@@ -93,6 +93,8 @@ static inline struct xhci_host* xhci_get_inst_of_port(struct usbh_hubport *hport
 
 static struct xhci_host xhci_host[CONFIG_USBHOST_XHCI_NUM];
 
+/* Functions that need to be refactored */
+#if 0
 /* xhci hardware init */
 int usb_hc_init(uint32_t id)
 {
@@ -536,7 +538,7 @@ void USBH_IRQHandler(void *param)
 
     (void)xhci_event_process(xhci);
 }
-
+#endif
 
 /* 
  * Functions for xHCI drivers. These functions are called by USB core.