Index: kernel/genarch/src/drivers/dsrln/dsrlnout.c
===================================================================
--- kernel/genarch/src/drivers/dsrln/dsrlnout.c	(revision b366a6f4b86cb7fe82fcf415965c5a7de1a59638)
+++ kernel/genarch/src/drivers/dsrln/dsrlnout.c	(revision 8b863a629c2a1c274eeb1ea973a7ac4fead954cd)
@@ -63,5 +63,7 @@
 static outdev_operations_t dsrlndev_ops = {
 	.write = dsrlnout_putchar,
-	.redraw = NULL
+	.redraw = NULL,
+	.scroll_up = NULL,
+	.scroll_down = NULL
 };