release/src-rt-6.x.4708/linux/linux-2.6.36/arch/avr32/boards/merisc/merisc_sysfs.c

   1 /*
   2  * Merisc sysfs exports
   3  *
   4  * Copyright (C) 2008 Martinsson Elektronik AB
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/module.h>
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/list.h>
  14 #include <linux/spinlock.h>
  15 #include <linux/device.h>
  16 #include <linux/sysdev.h>
  17 #include <linux/timer.h>
  18 #include <linux/err.h>
  19 #include <linux/ctype.h>
  20 #include "merisc.h"
  21
  22 static ssize_t merisc_model_show(struct class *class, char *buf)
  23 {
  24         ssize_t ret = 0;
  25
  26         sprintf(buf, "%s\n", merisc_model());
  27         ret = strlen(buf) + 1;
  28
  29         return ret;
  30 }
  31
  32 static ssize_t merisc_revision_show(struct class *class, char *buf)
  33 {
  34         ssize_t ret = 0;
  35
  36         sprintf(buf, "%s\n", merisc_revision());
  37         ret = strlen(buf) + 1;
  38
  39         return ret;
  40 }
  41
  42 static struct class_attribute merisc_class_attrs[] = {
  43         __ATTR(model, S_IRUGO, merisc_model_show, NULL),
  44         __ATTR(revision, S_IRUGO, merisc_revision_show, NULL),
  45         __ATTR_NULL,
  46 };
  47
  48 struct class merisc_class = {
  49         .name =         "merisc",
  50         .owner =        THIS_MODULE,
  51         .class_attrs =  merisc_class_attrs,
  52 };
  53
  54 static int __init merisc_sysfs_init(void)
  55 {
  56         int status;
  57
  58         status = class_register(&merisc_class);
  59         if (status < 0)
  60                 return status;
  61
  62         return 0;
  63 }
  64
  65 postcore_initcall(merisc_sysfs_init);