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/*
* RT-Linux 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 versions
extern 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 *);
unsigned int (*poll) (struct rtl_file *, struct poll_table_struct *);
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_chrdev(unsigned int, const char *, struct rtl_file_operations *);
extern int rtl_unregister_chrdev(unsigned int major, const char * name);
#endif
#endif
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