diff --git a/src/libs/compat/freebsd_network/compat/machine/bus.h b/src/libs/compat/freebsd_network/compat/machine/bus.h
index 648d718b65..002ee23f00 100644
--- a/src/libs/compat/freebsd_network/compat/machine/bus.h
+++ b/src/libs/compat/freebsd_network/compat/machine/bus.h
@@ -226,14 +226,6 @@ bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
 }
 
 
-static inline void
-bus_read_region_1(struct resource *res, bus_size_t offset, 
-	const u_int8_t *addr, size_t count)
-{
-	/* TODO implement */
-}
-
-
 static inline void
 bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t handle,
 	bus_size_t offset, bus_size_t len, int flags)
diff --git a/src/libs/compat/freebsd_network/compat/sys/bus.h b/src/libs/compat/freebsd_network/compat/sys/bus.h
index 2299ef2e6c..889cd9992a 100644
--- a/src/libs/compat/freebsd_network/compat/sys/bus.h
+++ b/src/libs/compat/freebsd_network/compat/sys/bus.h
@@ -33,6 +33,9 @@
 #define bus_barrier(r, o, l, f) \
 	bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
 
+#define bus_read_region_1(r, o, d, c) \
+	bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
+
 #define	FILTER_STRAY			B_UNHANDLED_INTERRUPT
 #define	FILTER_HANDLED			B_HANDLED_INTERRUPT
 #define	FILTER_SCHEDULE_THREAD	B_INVOKE_SCHEDULER