PIIODevice registration dramatically optimization

libs/main/io_devices/pispi.h

@@ -31,7 +31,7 @@
 
 class PIP_EXPORT PISPI: public PIIODevice
 {
-	PIIODEVICE(PISPI)
+	PIIODEVICE(PISPI, "spi")
 public:
 	explicit PISPI(const PIString & path = PIString(), uint speed_hz = 1000000, PIIODevice::DeviceMode mode = PIIODevice::ReadWrite);
 	virtual ~PISPI();
@@ -67,7 +67,6 @@ protected:
 	int readDevice(void * read_to, int max_size);
 	int writeDevice(const void * data, int max_size);
 
-	PIString fullPathPrefix() const {return PIStringAscii("spi");}
 	PIString constructFullPathDevice() const;
 	void configureFromFullPathDevice(const PIString & full_path);
 	PIPropertyStorage constructVariantDevice() const;