874   int available = 0;  in PORT_WriteDataCO()  local
876   if (!p_port->p_data_co_callback(handle, (uint8_t*)&available,  in PORT_WriteDataCO()
877                                   sizeof(available),  in PORT_WriteDataCO()
882         available);  in PORT_WriteDataCO()
885   if (available == 0) return PORT_SUCCESS;  in PORT_WriteDataCO()
897       (((int)p_buf->len + available) <= (int)p_port->peer_mtu) &&  in PORT_WriteDataCO()
898       (((int)p_buf->len + available) <= (int)length)) {  in PORT_WriteDataCO()
903             available, DATA_CO_CALLBACK_TYPE_OUTGOING))  in PORT_WriteDataCO()
909           available);  in PORT_WriteDataCO()
915     p_port->tx.queue_size += (uint16_t)available;  in PORT_WriteDataCO()
917     *p_len = available;  in PORT_WriteDataCO()
918     p_buf->len += (uint16_t)available;  in PORT_WriteDataCO()
931   while (available) {  in PORT_WriteDataCO()
940           available);  in PORT_WriteDataCO()
950     if (available < (int)length) length = (uint16_t)available;  in PORT_WriteDataCO()
978     available -= (int)length;  in PORT_WriteDataCO()
980   if (!available && (rc != PORT_CMD_PENDING) && (rc != PORT_TX_QUEUE_DISABLED))  in PORT_WriteDataCO()