Add USB serial support to SERIAL_PORT_2 on DUE (#17245)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
2020-03-23 17:55:21 -05:00
1 parent adb7a88428
commit cd4060a99c
@@ -683,6 +683,10 @@
  #define SPI_SPEED SPI_FULL_SPEED
 #endif

+#if SERIAL_PORT == -1 || SERIAL_PORT_2 == -1
+  #define HAS_USB_SERIAL 1
+#endif
+
 /**
 * This setting is also used by M109 when trying to calculate
 * a ballpark safe margin to prevent wait-forever situation.