/* * RTLinux POSIX IO level * *  Copyright (C) 1999 FSM Labs (http://www.fsmlabs.com/) *  Written by Michael Barabanov <baraban@fsmlabs.com> */#ifndef __RTL_POSIXIO_H__#define __RTL_POSIXIO_H__#ifdef __KERNEL__#include <linux/types.h>#include <linux/fs.h>#include <rtl_conf.h>// may disappear in future versionsextern int rtl_get_minor(int fd);/* typedef int RTL_INODE; *//* we only need the minor number */#define RTL_MINOR_FROM_FILEPTR(fptr) ((fptr)->f_minor)struct rtl_file_operations;struct rtl_file {	struct rtl_file_operations	*f_op;	int f_minor;	int f_flags;	loff_t                  f_pos;};struct rtl_file_operations {	loff_t (*llseek) (struct rtl_file *, loff_t, int);	ssize_t (*read) (struct rtl_file *, char *, size_t, loff_t *);	ssize_t (*write) (struct rtl_file *, const char *, size_t, loff_t *);	int (*ioctl) (struct rtl_file *, unsigned int, unsigned long);	int (*mmap) (struct rtl_file *, void  *start,  size_t length, int prot , int flags, off_t offset, caddr_t *result);	int (*open) (struct rtl_file *);	int (*release) (struct rtl_file *);};extern int rtl_register_rtldev(unsigned int, const char *, struct rtl_file_operations *);extern int rtl_unregister_rtldev(unsigned int major, const char * name);/* compatibility */#define rtl_register_chrdev rtl_register_rtldev#define rtl_unregister_chrdev rtl_unregister_rtldev#endif#endif