1. 根目录:
2. drivers
3. media
4. platform
5. vivid
6. vivid-radio-rx.h

/*
 * vivid-radio-rx.h - radio receiver support functions.
 *
 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _VIVID_RADIO_RX_H_
#define _VIVID_RADIO_RX_H_

ssize_t vivid_radio_rx_read(struct file *, char __user *, size_t, loff_t *);
unsigned int vivid_radio_rx_poll(struct file *file, struct poll_table_struct *wait);

int vivid_radio_rx_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band);
int vivid_radio_rx_s_hw_freq_seek(struct file *file, void *fh, const struct v4l2_hw_freq_seek *a);
int vivid_radio_rx_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt);
int vivid_radio_rx_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt);

#endif