diff --git a/contrib/99-tillitis.rules b/contrib/99-tillitis.rules
new file mode 100644
index 0000000..c8597b9
--- /dev/null
+++ b/contrib/99-tillitis.rules
@@ -0,0 +1,7 @@
+# CH552 bootloader (for unprogrammed CH552 chips)
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTR{idVendor}=="4348", ATTR{idProduct}=="55e0", MODE="0666", GROUP="dialout"
+
+# TP-1 programmer
+SUBSYSTEMS=="hidraw", KERNEL=="hidraw*", MODE="0666", GROUP="dialout"
+ATTRS{idVendor}=="cafe", MODE="0660", GROUP="dialout"
+