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kernel/linux-rt-4.4.41/net/irda/irproc.c 2.53 KB
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  /*********************************************************************
   *
   * Filename:      irproc.c
   * Version:       1.0
   * Description:   Various entries in the /proc file system
   * Status:        Experimental.
   * Author:        Thomas Davis, <ratbert@radiks.net>
   * Created at:    Sat Feb 21 21:33:24 1998
   * Modified at:   Sun Nov 14 08:54:54 1999
   * Modified by:   Dag Brattli <dagb@cs.uit.no>
   *
   *     Copyright (c) 1998-1999, Dag Brattli <dagb@cs.uit.no>
   *     Copyright (c) 1998, Thomas Davis, <ratbert@radiks.net>,
   *     All Rights Reserved.
   *
   *     This program is free software; you can redistribute it and/or
   *     modify it under the terms of the GNU General Public License as
   *     published by the Free Software Foundation; either version 2 of
   *     the License, or (at your option) any later version.
   *
   *     I, Thomas Davis, provide no warranty for any of this software.
   *     This material is provided "AS-IS" and at no charge.
   *
   ********************************************************************/
  
  #include <linux/miscdevice.h>
  #include <linux/proc_fs.h>
  #include <linux/seq_file.h>
  #include <linux/module.h>
  #include <linux/init.h>
  #include <net/net_namespace.h>
  
  #include <net/irda/irda.h>
  #include <net/irda/irlap.h>
  #include <net/irda/irlmp.h>
  
  extern const struct file_operations discovery_seq_fops;
  extern const struct file_operations irlap_seq_fops;
  extern const struct file_operations irlmp_seq_fops;
  extern const struct file_operations irttp_seq_fops;
  extern const struct file_operations irias_seq_fops;
  
  struct irda_entry {
  	const char *name;
  	const struct file_operations *fops;
  };
  
  struct proc_dir_entry *proc_irda;
  EXPORT_SYMBOL(proc_irda);
  
  static const struct irda_entry irda_dirs[] = {
  	{"discovery",	&discovery_seq_fops},
  	{"irttp",	&irttp_seq_fops},
  	{"irlmp",	&irlmp_seq_fops},
  	{"irlap",	&irlap_seq_fops},
  	{"irias",	&irias_seq_fops},
  };
  
  /*
   * Function irda_proc_register (void)
   *
   *    Register irda entry in /proc file system
   *
   */
  void __init irda_proc_register(void)
  {
  	int i;
  
  	proc_irda = proc_mkdir("irda", init_net.proc_net);
  	if (proc_irda == NULL)
  		return;
  
  	for (i = 0; i < ARRAY_SIZE(irda_dirs); i++)
  		(void) proc_create(irda_dirs[i].name, 0, proc_irda,
  				   irda_dirs[i].fops);
  }
  
  /*
   * Function irda_proc_unregister (void)
   *
   *    Unregister irda entry in /proc file system
   *
   */
  void irda_proc_unregister(void)
  {
  	int i;
  
  	if (proc_irda) {
  		for (i=0; i<ARRAY_SIZE(irda_dirs); i++)
  			remove_proc_entry(irda_dirs[i].name, proc_irda);
  
  		remove_proc_entry("irda", init_net.proc_net);
  		proc_irda = NULL;
  	}
  }