IBDM_IBT_ATTACHED
if (!(ibdm.ibdm_state & IBDM_IBT_ATTACHED)) {
ibdm.ibdm_state |= IBDM_IBT_ATTACHED;
if (ibdm.ibdm_state & IBDM_IBT_ATTACHED) {
ibdm.ibdm_state &= ~IBDM_IBT_ATTACHED;