diff --git a/udev/rules.d/p10bmc-debug-trigger-kcs4.rules b/udev/rules.d/p10bmc-debug-trigger-kcs4.rules
new file mode 100644
index 0000000..248a0dd
--- /dev/null
+++ b/udev/rules.d/p10bmc-debug-trigger-kcs4.rules
@@ -0,0 +1,2 @@
+ACTION=="add", DEVPATH=="*/1e789114.kcs/*", SUBSYSTEM=="serio", RUN{program}+="/bin/sh -c 'echo -n serio_raw > /sys%p/drvctl'"
+ACTION=="add", DEVPATH=="*/1e789114.kcs/*", SUBSYSTEMS=="serio", SUBSYSTEM=="misc", TAG+="systemd", ENV{SYSTEMD_WANTS}+="debug-trigger@"