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 075d29207..7633a3ec8 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
@@ -1098,7 +1098,17 @@ int create_xhci_intr_service(void *para){
     }
 
 
- //   tid = thread();
+    tid = thread(bind_xhci_intr, "xhci_intr_procedure", para);
+
+/* Create thread error! */
+    if(tid < 0){
+        return -1;
+    }else if(tid > 0){
+        xhci->tid_intr = tid;
+    }else{
+/* Child thread. do nothing except for the interrupt processing function. */        
+    }
+
 
     return 0;
 }
diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h
index 1bceb42f5..5487ddfd0 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h
@@ -818,8 +818,6 @@ struct xhci_slot {
 	unsigned int tt_id;
 	/** Transaction translator port */
 	unsigned int tt_port;
-	/** Thread ID of the thread that is created to process xhci interrupt */
-	unsigned int tid_intr;
 
 	/** Endpoints, indexed by context ID */
 	struct xhci_endpoint *endpoint[XHCI_CTX_END];
@@ -922,6 +920,9 @@ struct xhci_host {
 	uintptr_t       eseg_addr;
 	uintptr_t       eseg_phy;
 
+    /* Thread ID of the thread that is created to process xhci interrupt */
+    unsigned int tid_intr;
+
 	struct xhci_endpoint   *cur_cmd_pipe;
 };