func: static void handle_satn(ESPState *s)
  
  {
  
      uint8_t buf[32];
  
      int len;
  
  
  
      if (s->dma && !s->dma_enabled) {
  
          s->dma_cb = handle_satn;
  
          return;
  
      }
  
      len = get_cmd(s, buf);
  
      if (len)
  
          do_cmd(s, buf);
  
  }
  