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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * cx18 file operation functions4 *5 * Derived from ivtv-fileops.h6 *7 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>8 */9 10/* Testing/Debugging */11int cx18_v4l2_open(struct file *filp);12ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count,13 loff_t *pos);14ssize_t cx18_v4l2_write(struct file *filp, const char __user *buf, size_t count,15 loff_t *pos);16int cx18_v4l2_close(struct file *filp);17__poll_t cx18_v4l2_enc_poll(struct file *filp, poll_table *wait);18int cx18_start_capture(struct cx18_open_id *id);19void cx18_stop_capture(struct cx18_stream *s, int gop_end);20void cx18_mute(struct cx18 *cx);21void cx18_unmute(struct cx18 *cx);22int cx18_v4l2_mmap(struct file *file, struct vm_area_struct *vma);23void cx18_clear_queue(struct cx18_stream *s, enum vb2_buffer_state state);24void cx18_vb_timeout(struct timer_list *t);25 26/* Shared with cx18-alsa module */27int cx18_claim_stream(struct cx18_open_id *id, int type);28void cx18_release_stream(struct cx18_stream *s);29