linux/drivers/media/usb/uvc/uvc_debugfs.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *      uvc_debugfs.c --  USB Video Class driver - Debugging support
 *
 *      Copyright (C) 2011
 *          Laurent Pinchart ([email protected])
 */

#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/usb.h>

#include "uvcvideo.h"

/* -----------------------------------------------------------------------------
 * Statistics
 */

#define UVC_DEBUGFS_BUF_SIZE …

struct uvc_debugfs_buffer { … };

static int uvc_debugfs_stats_open(struct inode *inode, struct file *file)
{ … }

static ssize_t uvc_debugfs_stats_read(struct file *file, char __user *user_buf,
				      size_t nbytes, loff_t *ppos)
{ … }

static int uvc_debugfs_stats_release(struct inode *inode, struct file *file)
{ … }

static const struct file_operations uvc_debugfs_stats_fops = …;

/* -----------------------------------------------------------------------------
 * Global and stream initialization/cleanup
 */

static struct dentry *uvc_debugfs_root_dir;

void uvc_debugfs_init_stream(struct uvc_streaming *stream)
{ … }

void uvc_debugfs_cleanup_stream(struct uvc_streaming *stream)
{ … }

void uvc_debugfs_init(void)
{ … }

void uvc_debugfs_cleanup(void)
{ … }