Add functions to do with kernel version

Signed-off-by: Deokgyu Yang <secugyu@gmail.com>
diff --git a/bindings.i b/bindings.i
index 4a56787..2c0e974 100644
--- a/bindings.i
+++ b/bindings.i
@@ -9,6 +9,8 @@
 extern		void setupCheck		(const char *fName);
 extern		void usingGpiomemCheck	(const char *what);
 extern		void setUsingGpiomem	(const unsigned int value);
+extern		void setKernelVersion	(void);
+extern		char cmpKernelVersion	(int num, ...);
 extern		void wiringPiVersion	(int *major, char **minor);
 extern		int  wiringPiSetup	(void);
 extern		int  wiringPiSetupSys	(void);