XHCI_MAX_EVENTS
fCmdAddr = fErst->rs_addr + (XHCI_MAX_EVENTS + i) * sizeof(xhci_trb);
if (i == XHCI_MAX_EVENTS) {
(XHCI_MAX_COMMANDS + XHCI_MAX_EVENTS) * sizeof(xhci_trb)
memset(fErst, 0, (XHCI_MAX_COMMANDS + XHCI_MAX_EVENTS) * sizeof(xhci_trb)
fErst->rs_size = XHCI_MAX_EVENTS;
addr += XHCI_MAX_EVENTS * sizeof(xhci_trb);
dmaAddress += sizeof(xhci_erst_element) + XHCI_MAX_EVENTS