#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/miscdevice.h>
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
ret = -EBUSY;
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
ret = -EBUSY;