SVR4_IOC_VOID      69 compat/svr4/svr4_ioctl.c 	if (cmd & SVR4_IOC_VOID)
SVR4_IOC_VOID      44 compat/svr4/svr4_ioctl.h #define	SVR4_IO(g,n)		SVR4_IOC(SVR4_IOC_VOID,	(g), (n), 0)