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kernel/linux-imx6_3.14.28/drivers/message/i2o/config-osm.c 2.12 KB
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  /*
   *	Configuration OSM
   *
   *	Copyright (C) 2005	Markus Lidel <Markus.Lidel@shadowconnect.com>
   *
   *	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.
   *
   *	Fixes/additions:
   *		Markus Lidel <Markus.Lidel@shadowconnect.com>
   *			initial version.
   */
  
  #include <linux/module.h>
  #include <linux/i2o.h>
  #include <linux/dcache.h>
  #include <linux/namei.h>
  #include <linux/fs.h>
  
  #include <asm/uaccess.h>
  
  #define OSM_NAME	"config-osm"
  #define OSM_VERSION	"1.323"
  #define OSM_DESCRIPTION	"I2O Configuration OSM"
  
  /* access mode user rw */
  #define S_IWRSR (S_IRUSR | S_IWUSR)
  
  static struct i2o_driver i2o_config_driver;
  
  /* Config OSM driver struct */
  static struct i2o_driver i2o_config_driver = {
  	.name = OSM_NAME,
  };
  
  #ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
  #include "i2o_config.c"
  #endif
  
  /**
   *	i2o_config_init - Configuration OSM initialization function
   *
   *	Registers Configuration OSM in the I2O core and if old ioctl's are
   *	compiled in initialize them.
   *
   *	Returns 0 on success or negative error code on failure.
   */
  static int __init i2o_config_init(void)
  {
  	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "
  ");
  
  	if (i2o_driver_register(&i2o_config_driver)) {
  		osm_err("handler register failed.
  ");
  		return -EBUSY;
  	}
  #ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
  	if (i2o_config_old_init()) {
  		osm_err("old config handler initialization failed
  ");
  		i2o_driver_unregister(&i2o_config_driver);
  		return -EBUSY;
  	}
  #endif
  
  	return 0;
  }
  
  /**
   *	i2o_config_exit - Configuration OSM exit function
   *
   *	If old ioctl's are compiled in exit remove them and unregisters
   *	Configuration OSM from I2O core.
   */
  static void i2o_config_exit(void)
  {
  #ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
  	i2o_config_old_exit();
  #endif
  
  	i2o_driver_unregister(&i2o_config_driver);
  }
  
  MODULE_AUTHOR("Markus Lidel <Markus.Lidel@shadowconnect.com>");
  MODULE_LICENSE("GPL");
  MODULE_DESCRIPTION(OSM_DESCRIPTION);
  MODULE_VERSION(OSM_VERSION);
  
  module_init(i2o_config_init);
  module_exit(i2o_config_exit);