PIIODevice registration dramatically optimization

libs/main/io_devices/pican.h

@@ -31,7 +31,7 @@
 
 class PIP_EXPORT PICAN: public PIIODevice
 {
-	PIIODEVICE(PICAN)
+	PIIODEVICE(PICAN, "can")
 public:
 	explicit PICAN(const PIString & path = PIString(), PIIODevice::DeviceMode mode = PIIODevice::ReadWrite);
 	virtual ~PICAN();
@@ -45,7 +45,6 @@ protected:
 	bool closeDevice();
 	int readDevice(void * read_to, int max_size);
 	int writeDevice(const void * data, int max_size);
-	PIString fullPathPrefix() const {return PIStringAscii("can");}
 	PIString constructFullPathDevice() const;
 	void configureFromFullPathDevice(const PIString & full_path);
 	PIPropertyStorage constructVariantDevice() const;