vtoy_json_get_string(child, "gfxmode", sizeof(data->gfxmode), data->gfxmode);
vtoy_json_get_string(child, "serial_param", sizeof(data->serial_param), data->serial_param);
vtoy_json_get_string(child, "gfxmode", sizeof(data->gfxmode), data->gfxmode);
vtoy_json_get_string(child, "serial_param", sizeof(data->serial_param), data->serial_param);