HelenOS sources

sys_iospace_enable   78 kernel/generic/include/ddi/ddi.h extern sys_errno_t sys_iospace_enable(uspace_ptr_ddi_ioarg_t);
sys_iospace_enable  118 kernel/generic/src/syscall/syscall.c 	[SYS_IOSPACE_ENABLE] = (syshandler_t) sys_iospace_enable,