Calling EP open with bad parameters should be considered a bug.

src/device/usbd.c

@@ -804,7 +804,7 @@ bool usbd_open_edpt_pair(uint8_t rhport, uint8_t const* p_desc, uint8_t ep_count
   {
     tusb_desc_endpoint_t const * desc_ep = (tusb_desc_endpoint_t const *) p_desc;
 
-    TU_VERIFY(TUSB_DESC_ENDPOINT == desc_ep->bDescriptorType && xfer_type == desc_ep->bmAttributes.xfer);
+    TU_ASSERT(TUSB_DESC_ENDPOINT == desc_ep->bDescriptorType && xfer_type == desc_ep->bmAttributes.xfer);
     TU_ASSERT(dcd_edpt_open(rhport, desc_ep));
 
     if ( tu_edpt_dir(desc_ep->bEndpointAddress) == TUSB_DIR_IN )