G-code Queue followup (#21214)

4 years ago · e65a84f6ea
1 changed files with 1 additions and 1 deletions
--- a/Marlin/src/gcode/sd/M28_M29.cpp
+++ b/Marlin/src/gcode/sd/M28_M29.cpp
@ -49,7 +49,7 @@ void GcodeSuite::M28() {
    // Binary transfer mode
    if ((card.flag.binary_mode = binary_mode)) {
      SERIAL_ECHO_MSG("Switching to Binary Protocol");
-      TERN_(HAS_MULTI_SERIAL, card.transfer_port_index = queue.port[queue.index_r]);
+      TERN_(HAS_MULTI_SERIAL, card.transfer_port_index = queue.ring_buffer.command_port());
    }
    else
      card.openFileWrite(p);