ksudoku/ksudoku.c

#include "ksudoku.h"

#define KSUDOKU_VERSION "0.1"
#define KSUDOKU_DESC "Kernel Sudoku Module"


static SUDOKU_ATTR_RO(is_valid);
static SUDOKU_ATTR_RO(is_solved);


/**
 * sudoku_create_file - create sysfs attribute file for the given sudoku.
 * @sudoku: sudoku
 * @attr: sudoku attribute descriptor.
 */
int sudoku_create_file(struct sudoku *s,
		       const struct sudoku_attribute *attr)
{
	int error = 0;

	if (s) {
		WARN(((attr->attr.mode & S_IWUGO) && !attr->store),
			"Attribute %s: write permission without 'store'\n",
			attr->attr.name);
		WARN(((attr->attr.mode & S_IRUGO) && !attr->show),
			"Attribute %s: read permission without 'show'\n",
			attr->attr.name);
		error = sysfs_create_file(&s->kobj, &attr->attr);
	}

	return error;
}
EXPORT_SYMBOL_GPL(sudoku_create_file);


/* static ssize_t is_valid_show(struct kobject *kobj, struct attribute *attr, */
/*                              char *buf) */
/* { */
/*         struct sudoku_attribute *s_attr = to_sudoku_attr(attr); */
/*         struct sudoku *s = to_sudoku(kobj); */
/*         ssize_t ret = -EIO; */

/*         if (s_attr->show) */
/*                 ret = s_attr->show(s, s_attr, buf); */

/*         if (ret >= (ssize_t)PAGE_SIZE) { */
/*                 printk("is_valid_show: %pS returned bad count\n", */
/*                        s_attr->show); */
/*         } */
/*         return ret; */
/* } */


static int ksudoku_init(void)
{
        printk(KERN_ALERT "Init ksudoku.\n");
        return 0;
}


static void ksudoku_exit(void)
{
        printk(KERN_ALERT "Exit ksudoku.\n");
}


MODULE_AUTHOR("Sameer Rahmani <lxsameer@gnu.org>");

MODULE_DESCRIPTION(KSUDOKU_DESC);
MODULE_VERSION(KSUDOKU_VERSION);
MODULE_LICENSE("GPL");

module_init(ksudoku_init);
module_exit(ksudoku_exit);