+ /* same line as Driver */
+ if (backend->can_use_buffered_io()) {
+ basic_packer.attach (use_buffered_io_button, 3, 4, btn, btn + 1, xopt, xopt);
+ btn++;
+ }
+
+ /* same line as Device(s) */
+ if (backend->can_request_update_devices()) {
+ basic_packer.attach (update_devices_button, 3, 4, btn, btn + 1, xopt, xopt);
+ btn++;
+ }
+
+ /* prefer "try autostart" below "Start" if possible */
+ if (btn < row) {
+ basic_packer.attach (try_autostart_button, 3, 4, btn, btn + 1, xopt, xopt);
+ btn++;
+ autostart_packed = true;
+ }
+