close #105 add tud_vendor_write_available()

2019-08-31 16:31:07 +07:00
parent fa796de6cd
commit b7dbc98ab1
2 changed files with 26 additions and 12 deletions
@@ -125,6 +125,11 @@ uint32_t tud_vendor_n_write (uint8_t itf, void const* buffer, uint32_t bufsize)
  return ret;
 }

+uint32_t tud_vendor_n_write_available (uint8_t itf)
+{
+  return tu_fifo_remaining(&_vendord_itf[itf].tx_ff);
+}
+
 //--------------------------------------------------------------------+
 // USBD Driver API
 //--------------------------------------------------------------------+