HelenOS sources

ioport16_t         48 kernel/generic/include/typedefs.h typedef volatile uint16_t ioport16_t;
ioport16_t         54 uspace/lib/c/include/ddi.h typedef volatile uint16_t ioport16_t;
ioport16_t         54 uspace/lib/posix/include/libc/ddi.h typedef volatile uint16_t ioport16_t;