SLOT_0_NUM_ENTRIES
uint32 dwslot0 = SLOT_0_NUM_ENTRIES(1) | SLOT_0_ROUTE(route);
inputdwslot0 &= ~(SLOT_0_NUM_ENTRIES(0x1f));
inputdwslot0 |= SLOT_0_NUM_ENTRIES(XHCI_MAX_ENDPOINTS - 1);