SIOCSIFMUXID
if (myioctl(ipfd, SIOCSIFMUXID, (caddr_t)&ifr) < 0) {
{ (uint_t)SIOCSIFMUXID, "SIOCSIFMUXID", "ifreq" }, /* 89 */
/* 089 */ { SIOCSIFMUXID, sizeof (struct ifreq),
if ((err = ldi_ioctl(mux_lh, SIOCSIFMUXID, (intptr_t)&ifr, FKIOCTL,