diff --git a/package/base/udev/scripts/modalias_ieee1394 b/package/base/udev/scripts/modalias_ieee1394
new file mode 100644
index 000000000..a6c61e2db
--- /dev/null
+++ b/package/base/udev/scripts/modalias_ieee1394
@@ -0,0 +1,7 @@
+#!/bin/sh -e
+# this is required for kernels older than 2.6.14
+
+[ "$VENDOR_ID" -a "$MODEL_ID" -a "$SPECIFIER_ID" -a "$VERSION" ] || exit 1
+
+printf "MODALIAS='ieee1394:ven%08Xmo%08Xsp%08Xver%08X'\n" \
+	$((0x$VENDOR_ID)) $((0x$MODEL_ID)) $((0x$SPECIFIER_ID)) $((0x$VERSION))
diff --git a/package/base/udev/scripts/modalias_serio b/package/base/udev/scripts/modalias_serio
new file mode 100644
index 000000000..bf21e0ab3
--- /dev/null
+++ b/package/base/udev/scripts/modalias_serio
@@ -0,0 +1,8 @@
+#!/bin/sh -e
+# this is required for kernels older than 2.6.13
+
+[ "$SERIO_TYPE" -a "$SERIO_PROTO" -a "$SERIO_ID" -a "$SERIO_EXTRA" ] || exit 1
+
+printf "MODALIAS='serio:ty%02Xpr%02Xid%02Xex%02X'\n" \
+	$((0x$SERIO_TYPE)) $((0x$SERIO_PROTO)) $((0x$SERIO_ID)) \
+	$((0x$SERIO_EXTRA))