XHCI_TRB_LEN
mdb_printf("TRB Length: %d bytes\n", XHCI_TRB_LEN(status));
xt->xt_trbs[off + i].trb_status = LE_32(XHCI_TRB_LEN(dmasz) |
trb->trb_status = LE_32(XHCI_TRB_LEN(len) | XHCI_TRB_TDREM(0) |
xt->xt_trbs[0].trb_status = LE_32(XHCI_TRB_LEN(8) | XHCI_TRB_INTR(0));