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/timer.h>
  17 #include <linux/err.h>
  18 #include <linux/ctype.h>
  19 #include "merisc.h"
  20
  21 static ssize_t merisc_model_show(struct class *class, char *buf)
  22 {
  23         ssize_t ret = 0;
  24
  25         sprintf(buf, "%s\n", merisc_model());
  26         ret = strlen(buf) + 1;
  27
  28         return ret;
  29 }
  30
  31 static ssize_t merisc_revision_show(struct class *class, char *buf)
  32 {
  33         ssize_t ret = 0;
  34
  35         sprintf(buf, "%s\n", merisc_revision());
  36         ret = strlen(buf) + 1;
  37
  38         return ret;
  39 }
  40
  41 static struct class_attribute merisc_class_attrs[] = {
  42         __ATTR(model, S_IRUGO, merisc_model_show, NULL),
  43         __ATTR(revision, S_IRUGO, merisc_revision_show, NULL),
  44         __ATTR_NULL,
  45 };
  46
  47 struct class merisc_class = {
  48         .name =         "merisc",
  49         .owner =        THIS_MODULE,
  50         .class_attrs =  merisc_class_attrs,
  51 };
  52
  53 static int __init merisc_sysfs_init(void)
  54 {
  55         int status;
  56
  57         status = class_register(&merisc_class);
  58         if (status < 0)
  59                 return status;
  60
  61         return 0;
  62 }
  63
  64 postcore_initcall(merisc_sysfs_init);