"files" also needed.

sys/dev/bi/files.bi

@@ -0,0 +1,23 @@
+#	$NetBSD: files.bi,v 1.1 1999/08/04 19:13:05 ragge Exp $
+#
+# Config file and device description for machine-independent
+# code for devices Digital Equipment Corp. BI bus.
+# Included by ports that need it.
+
+device	bi { node=-1 }
+
+file	dev/bi/bi.c				bi
+
+# KDB50 on BI
+device	kdb: mscp
+attach	kdb at bi
+file	dev/bi/kdb.c				kdb
+
+# DEBNA/DEBNT Ethernet Adapter
+device	ni: ifnet, ether, arp
+attach	ni at bi
+file	dev/bi/ni.c				ni
+
+# DWBUA BI-Unibus adapter
+attach	uba at bi with uba_bi
+file	dev/bi/uba_bi.c				uba_bi