diff --git a/bunti_server/src/main/java/de/ctdo/bunti/dmx/.gitignore b/bunti_server/src/main/java/de/ctdo/bunti/dmx/.gitignore
deleted file mode 100644
index beb1afd..0000000
--- a/bunti_server/src/main/java/de/ctdo/bunti/dmx/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/DMXMixer.java
diff --git a/bunti_server/src/main/java/de/ctdo/bunti/dmx/DMXMixer.java b/bunti_server/src/main/java/de/ctdo/bunti/dmx/DMXMixer.java
new file mode 100644
index 0000000..8f223ea
--- /dev/null
+++ b/bunti_server/src/main/java/de/ctdo/bunti/dmx/DMXMixer.java
@@ -0,0 +1,12 @@
+package de.ctdo.bunti.dmx;
+
+import java.util.Map;
+
+import de.ctdo.bunti.model.BuntiDevice;
+
+public interface DMXMixer {
+
+	public void setDMX512Channel(int channel, int value);
+	public void updateDevice(BuntiDevice device, Map<String, Object> options);
+
+}