zephyr/drivers/bluetooth/util.h

/* util.h - Common helpers for Bluetooth drivers */

/*
 * Copyright (c) 2016 Intel Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

static inline void bt_uart_drain(struct device *dev)
{
	uint8_t c;

	while (uart_fifo_read(dev, &c, 1)) {
		continue;
	}
}