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kernel/linux-rt-4.4.41/arch/avr32/boards/merisc/merisc_sysfs.c 1.3 KB
5113f6f70   김현기   kernel add
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  /*
   * Merisc sysfs exports
   *
   * Copyright (C) 2008 Martinsson Elektronik AB
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/list.h>
  #include <linux/spinlock.h>
  #include <linux/device.h>
  #include <linux/timer.h>
  #include <linux/err.h>
  #include <linux/ctype.h>
  #include "merisc.h"
  
  static ssize_t merisc_model_show(struct class *class, char *buf)
  {
  	ssize_t ret = 0;
  
  	sprintf(buf, "%s
  ", merisc_model());
  	ret = strlen(buf) + 1;
  
  	return ret;
  }
  
  static ssize_t merisc_revision_show(struct class *class, char *buf)
  {
  	ssize_t ret = 0;
  
  	sprintf(buf, "%s
  ", merisc_revision());
  	ret = strlen(buf) + 1;
  
  	return ret;
  }
  
  static struct class_attribute merisc_class_attrs[] = {
  	__ATTR(model, S_IRUGO, merisc_model_show, NULL),
  	__ATTR(revision, S_IRUGO, merisc_revision_show, NULL),
  	__ATTR_NULL,
  };
  
  struct class merisc_class = {
  	.name =		"merisc",
  	.owner =	THIS_MODULE,
  	.class_attrs =	merisc_class_attrs,
  };
  
  static int __init merisc_sysfs_init(void)
  {
  	int status;
  
  	status = class_register(&merisc_class);
  	if (status < 0)
  		return status;
  
  	return 0;
  }
  
  postcore_initcall(merisc_sysfs_init);