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 e540bc874e3accb1e3c70f4fa85bba2a12f7a592)
@@ -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)));