Macros starting with `i' in sys

• insque sys/systm.h:72
• _IO sys/ioctl.h:81
• _IOC sys/ioctl.h:79
• IOCBASECMD sys/ioctl.h:69
• IOCGROUP sys/ioctl.h:70
• IOCPARM_LEN sys/ioctl.h:68
• _IOR sys/ioctl.h:82
• _IOW sys/ioctl.h:83
• _IOWR sys/ioctl.h:85
• isbackground sys/tty.h:161
• isclr sys/param.h:167
• isctty sys/tty.h:156
• isset sys/param.h:166