Index: kernel/arch/ia64/src/drivers/ski.c
===================================================================
--- kernel/arch/ia64/src/drivers/ski.c	(revision 6eef3c4403b57fc01e6b79237e6cc0a6a6a7d016)
+++ kernel/arch/ia64/src/drivers/ski.c	(revision 9df6b0f517e1ff178f1a72197b03101a00f3d6f0)
@@ -61,5 +61,7 @@
 static outdev_operations_t skidev_ops = {
 	.write = ski_putchar,
-	.redraw = NULL
+	.redraw = NULL,
+	.scroll_up = NULL,
+	.scroll_down = NULL
 };