clean up enum task

src/host/ehci/ehci.c

@@ -326,6 +326,9 @@ bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *
 
     // attach TD
     qhd->qtd_overlay.next.address = (uint32_t) qtd;
+  }else
+  {
+    // TODO implement later
   }
 
   return true;