52     struct DListHead *pool = &port->writePool;  in UsbSerialStartTx()  local
57     while (!port->writeBusy && !DListIsEmpty(pool)) {  in UsbSerialStartTx()
63         req = DLIST_FIRST_ENTRY(pool, struct UsbFnRequest, list);  in UsbSerialStartTx()
78             DListInsertTail(&req->list, pool);  in UsbSerialStartTx()
92     struct DListHead *pool = &port->readPool;  in UsbSerialStartRx()  local
94     while (!DListIsEmpty(pool)) {  in UsbSerialStartRx()
102         req = DLIST_FIRST_ENTRY(pool, struct UsbFnRequest, list);  in UsbSerialStartRx()
108             DListInsertTail(&req->list, pool);  in UsbSerialStartRx()
1088     struct DListHead *pool = &acm->ctrlPool;  in AcmGetCtrlReq()  local
1090     if (!DListIsEmpty(pool)) {  in AcmGetCtrlReq()
1091         req = DLIST_FIRST_ENTRY(pool, struct UsbFnRequest, list);  in AcmGetCtrlReq()