Macros starting with `i' in bsd/sys

• __IDSTRING bsd/sys/cdefs.h:149
• IFTODT bsd/sys/dirent.h:104
• IFTOVT bsd/sys/vnode.h:232
• _IO bsd/sys/ioccom.h:88
• _IOC bsd/sys/ioccom.h:86
• IOCBASECMD bsd/sys/ioccom.h:71
• IOCGROUP bsd/sys/ioccom.h:72
• IOCPARM_LEN bsd/sys/ioccom.h:70
• _IOR bsd/sys/ioccom.h:89
• _IOW bsd/sys/ioccom.h:90
• _IOWR bsd/sys/ioccom.h:92
• isbackground bsd/sys/tty.h:252
• isclr bsd/sys/param.h:204
• isctty bsd/sys/tty.h:248
• isset bsd/sys/param.h:203