diff --git a/include/libcamera/ipa/ipa_interface.h b/include/libcamera/ipa/ipa_interface.h
index 5016ec25..cbe325ea 100644
--- a/include/libcamera/ipa/ipa_interface.h
+++ b/include/libcamera/ipa/ipa_interface.h
@@ -151,22 +151,6 @@ class IPAInterface
 {
 public:
 	virtual ~IPAInterface() {}
-
-	virtual int init(const IPASettings &settings) = 0;
-	virtual int start() = 0;
-	virtual void stop() = 0;
-
-	virtual void configure(const CameraSensorInfo &sensorInfo,
-			       const std::map<unsigned int, IPAStream> &streamConfig,
-			       const std::map<unsigned int, const ControlInfoMap &> &entityControls,
-			       const IPAOperationData &ipaConfig,
-			       IPAOperationData *result) = 0;
-
-	virtual void mapBuffers(const std::vector<IPABuffer> &buffers) = 0;
-	virtual void unmapBuffers(const std::vector<unsigned int> &ids) = 0;
-
-	virtual void processEvent(const IPAOperationData &data) = 0;
-	Signal<unsigned int, const IPAOperationData &> queueFrameAction;
 };
 
 } /* namespace libcamera */