1 struct file_operations {
2 struct module *owner;
3 loff_t (*llseek) (struct file *, loff_t, int);
4 ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
5 ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
6 ssize_t (*aio_read) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
7 ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
8 int (*readdir) (struct file *, void *, filldir_t);
9 unsigned int (*poll) (struct file *, struct poll_table_struct *);
10 int (*ioctl) (struct inode *, struct file *, unsigned int, unsigned long);
11 long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
12 long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
13 int (*mmap) (struct file *, struct vm_area_struct *);
14 int (*open) (struct inode *, struct file *);
15 int (*flush) (struct file *, fl_owner_t id);
16 int (*release) (struct inode *, struct file *);
17 int (*fsync) (struct file *, struct dentry *, int datasync);
18 int (*aio_fsync) (struct kiocb *, int datasync);
19 int (*fasync) (int, struct file *, int);
20 int (*lock) (struct file *, int, struct file_lock *);
21 ssize_t (*sendfile) (struct file *, loff_t *, size_t, read_actor_t, void *);
22 ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
23 unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
24 int (*check_flags)(int);
25 int (*dir_notify)(struct file *filp, unsigned long arg);
26 int (*flock) (struct file *, int, struct file_lock *);
27 ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
28 ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
29 };
1 static struct file_operations simple_fops = {
2 .open = simple_open,
3 .write = simple_write,
4 .owner = THIS_MODULE,
5 };
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