#include <linux/config.h>#include <linux/module.h>#include <linux/kernel.h>#include <linux/fs.h>#include <linux/init.h>#include <linux/devfs_fs_kernel.h>#include <linux/miscdevice.h>#include <linux/delay.h>#include <asm/irq.h>#include <asm/arch/regs-gpio.h>#include <asm/hardware.h>#define DEVICE_NAME	"leds"#define LED_MAJOR 231static unsigned long led_table [] = {	S3C2410_GPB5,	S3C2410_GPB6,};static unsigned int led_cfg_table [] = {	S3C2410_GPB5_OUTP,	S3C2410_GPB6_OUTP,};static int sbc2440_leds_ioctl(	struct inode *inode, 	struct file *file, 	unsigned int cmd, 	unsigned long arg){	switch(cmd) {	case 0:	case 1:		if (arg > 4) {			return -EINVAL;		}		s3c2410_gpio_setpin(led_table[arg], !cmd);		return 0;	default:		return -EINVAL;	}}static struct file_operations sbc2440_leds_fops = {	.owner	=	THIS_MODULE,	.ioctl	=	sbc2440_leds_ioctl,};static int __init sbc2440_leds_init(void){	int ret;	int i;	ret = register_chrdev(LED_MAJOR, DEVICE_NAME, &sbc2440_leds_fops);	if (ret < 0) {	  printk(DEVICE_NAME " can't register major number\n");	  return ret;	}	devfs_mk_cdev(MKDEV(LED_MAJOR, 0), S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP, DEVICE_NAME);		for (i = 0; i < 2; i++) {		s3c2410_gpio_cfgpin(led_table[i], led_cfg_table[i]);		s3c2410_gpio_setpin(led_table[i], 1);	}	printk(DEVICE_NAME " initialized\n");	return 0;}static void __exit sbc2440_leds_exit(void){	devfs_remove(DEVICE_NAME);	unregister_chrdev(LED_MAJOR, DEVICE_NAME);}module_init(sbc2440_leds_init);module_exit(sbc2440_leds_exit);