diff --git a/board/czechlight/clearfog/overlay/usr/lib/udev/rules.d/40-spi-lumentum-ocm.rules b/board/czechlight/clearfog/overlay/usr/lib/udev/rules.d/40-spi-lumentum-ocm.rules
new file mode 100644
index 0000000..0a6b2f5
--- /dev/null
+++ b/board/czechlight/clearfog/overlay/usr/lib/udev/rules.d/40-spi-lumentum-ocm.rules
@@ -0,0 +1 @@
+ACTION=="add|change", SUBSYSTEM=="spi", ENV{MODALIAS}=="spi:lumentum-ocm", ATTR{driver_override}+="spidev"