drivers/media/pci/cx18/cx18-fileops.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  cx18 file operation functions
   4  *
   5  *  Derived from ivtv-fileops.h
   6  *
   7  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   8  */
   9
  10 /* Testing/Debugging */
  11 int cx18_v4l2_open(struct file *filp);
  12 ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count,
  13                       loff_t *pos);
  14 ssize_t cx18_v4l2_write(struct file *filp, const char __user *buf, size_t count,
  15                        loff_t *pos);
  16 int cx18_v4l2_close(struct file *filp);
  17 __poll_t cx18_v4l2_enc_poll(struct file *filp, poll_table *wait);
  18 int cx18_start_capture(struct cx18_open_id *id);
  19 void cx18_stop_capture(struct cx18_stream *s, int gop_end);
  20 void cx18_mute(struct cx18 *cx);
  21 void cx18_unmute(struct cx18 *cx);
  22 int cx18_v4l2_mmap(struct file *file, struct vm_area_struct *vma);
  23 void cx18_clear_queue(struct cx18_stream *s, enum vb2_buffer_state state);
  24 void cx18_vb_timeout(struct timer_list *t);
  25
  26 /* Shared with cx18-alsa module */
  27 int cx18_claim_stream(struct cx18_open_id *id, int type);
  28 void cx18_release_stream(struct cx18_stream *s);