linux/fs/proc/proc_tty.c

// SPDX-License-Identifier: GPL-2.0
/*
 * proc_tty.c -- handles /proc/tty
 *
 * Copyright 1997, Theodore Ts'o
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/tty.h>
#include <linux/seq_file.h>
#include <linux/bitops.h>
#include "internal.h"

/*
 * The /proc/tty directory inodes...
 */
static struct proc_dir_entry *proc_tty_driver;

/*
 * This is the handler for /proc/tty/drivers
 */
static void show_tty_range(struct seq_file *m, struct tty_driver *p,
	dev_t from, int num)
{ … }

static int show_tty_driver(struct seq_file *m, void *v)
{ … }

/* iterator */
static void *t_start(struct seq_file *m, loff_t *pos)
{ … }

static void *t_next(struct seq_file *m, void *v, loff_t *pos)
{ … }

static void t_stop(struct seq_file *m, void *v)
{ … }

static const struct seq_operations tty_drivers_op = …;

/*
 * This function is called by tty_register_driver() to handle
 * registering the driver's /proc handler into /proc/tty/driver/<foo>
 */
void proc_tty_register_driver(struct tty_driver *driver)
{ … }

/*
 * This function is called by tty_unregister_driver()
 */
void proc_tty_unregister_driver(struct tty_driver *driver)
{ … }

/*
 * Called by proc_root_init() to initialize the /proc/tty subtree
 */
void __init proc_tty_init(void)
{ … }