xdf_media_req
(void) xdf_media_req(vdp, XBV_MEDIA_REQ_LOCK, B_TRUE);
rv = xdf_media_req(vdp, XBV_MEDIA_REQ_LOCK, B_TRUE);
rv = xdf_media_req(vdp, XBV_MEDIA_REQ_NONE, B_TRUE);
if ((rv = xdf_media_req(vdp, XBV_MEDIA_REQ_EJECT, B_FALSE)) != 0) {
(void) xdf_media_req(vdp, XBV_MEDIA_REQ_LOCK, B_TRUE);