Macros starting with `i' in sys

• insque sys/systm.h:79
• _IO sys/ioctl.h:88
• _IOC sys/ioctl.h:86
• IOCBASECMD sys/ioctl.h:76
• IOCGROUP sys/ioctl.h:77
• IOCPARM_LEN sys/ioctl.h:75
• _IOR sys/ioctl.h:89
• _IOW sys/ioctl.h:90
• _IOWR sys/ioctl.h:92
• isbackground sys/tty.h:197
• isclr sys/param.h:168
• isctty sys/tty.h:192
• isset sys/param.h:167