Index: uspace/lib/c/include/sys/types.h
===================================================================
--- uspace/lib/c/include/sys/types.h	(revision 8d2dd7f2d52fbc7693f94b66e451eeff3756d061)
+++ uspace/lib/c/include/sys/types.h	(revision 719a208dbe29f92f5690472a3500c890db8f3f1f)
@@ -46,8 +46,4 @@
 typedef uint32_t fourcc_t;
 
-typedef volatile uint8_t ioport8_t;
-typedef volatile uint16_t ioport16_t;
-typedef volatile uint32_t ioport32_t;
-
 typedef int16_t unaligned_int16_t __attribute__ ((aligned(1)));
 typedef int32_t unaligned_int32_t __attribute__ ((aligned(1)));