Device: Report whether the current driver supports DFU

include/icsneo/device/device.h

@@ -210,6 +210,11 @@ public:
 	NODISCARD("If the Lifetime is not held, disconnects will be immediately unsuppressed")
 	Lifetime suppressDisconnects();
 
+	/**
+	 * Some alternate communication protocols do not support DFU
+	 */
+	virtual bool currentDriverSupportsDFU() const { return true; }
+
 	const device_eventhandler_t& getEventHandler() const { return report; }
 
 	std::shared_ptr<Communication> com;

include/icsneo/device/tree/neovifire2/neovifire2eth.h

@@ -50,6 +50,8 @@ public:
 		productId = PRODUCT_ID;
 	}
 
+	bool currentDriverSupportsDFU() const override { return false; }
+
 protected:
 	void setupSettings(IDeviceSettings& ssettings) override {
 		// TODO Check firmware version, old firmwares will reset Ethernet settings on settings send

include/icsneo/device/tree/valuecan4/valuecan4-2eleth.h

@@ -56,6 +56,8 @@ public:
 		return supportedNetworks;
 	}
 
+	bool currentDriverSupportsDFU() const override { return false; }
+
 protected:
 	virtual void setupSupportedRXNetworks(std::vector<Network>& rxNetworks) override {
 		for(auto& netid : GetSupportedNetworks())

include/icsneo/device/tree/valuecan4/valuecan4industrialeth.h

@@ -56,6 +56,8 @@ public:
 		return supportedNetworks;
 	}
 
+	bool currentDriverSupportsDFU() const override { return false; }
+
 protected:
 	virtual void setupSupportedRXNetworks(std::vector<Network>& rxNetworks) override {
 		for(auto& netid : GetSupportedNetworks())