--- zzzz-none-000/linux-4.4.271/drivers/usb/core/hcd.c	2021-06-03 06:22:09.000000000 +0000
+++ maple-fsgw-759/linux-4.4.271/drivers/usb/core/hcd.c	2023-12-20 10:37:30.000000000 +0000
@@ -1610,7 +1610,10 @@
 	atomic_inc(&urb->use_count);
 	atomic_inc(&urb->dev->urbnum);
 	usbmon_urb_submit(&hcd->self, urb);
-
+#ifdef AVM_USB_TRACE
+	avm_usb_trace_submit(hcd, urb);
+#endif
+	
 	/* NOTE requirements on root-hub callers (usbfs and the hub
 	 * driver, for now):  URBs' urb->transfer_buffer must be
 	 * valid and usb_buffer_{sync,unmap}() not be needed, since
@@ -1632,6 +1635,10 @@
 
 	if (unlikely(status)) {
 		usbmon_urb_submit_error(&hcd->self, urb, status);
+#ifdef AVM_USB_TRACE
+		avm_usb_trace_error(hcd, urb, status);
+#endif
+
 		urb->hcpriv = NULL;
 		INIT_LIST_HEAD(&urb->urb_list);
 		atomic_dec(&urb->use_count);
@@ -1720,6 +1727,10 @@
 
 	unmap_urb_for_dma(hcd, urb);
 	usbmon_urb_complete(&hcd->self, urb, status);
+#ifdef AVM_USB_TRACE
+	avm_usb_trace_complete(hcd, urb, status);
+#endif
+
 	usb_anchor_suspend_wakeups(anchor);
 	usb_unanchor_urb(urb);
 	if (likely(status == 0))
@@ -2865,6 +2876,10 @@
 	if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
 		usb_hcd_poll_rh_status(hcd);
 
+#ifdef AVM_USB_TRACE
+	avm_usb_register_trace_device (hcd);
+#endif
+
 	return retval;
 
 error_create_attr_group:
@@ -2982,6 +2997,10 @@
 			free_irq(hcd->irq, hcd);
 	}
 
+#ifdef AVM_USB_TRACE
+	avm_usb_deregister_trace_device (hcd);
+#endif
+
 	usb_deregister_bus(&hcd->self);
 	hcd_buffer_destroy(hcd);