Linux驱动调试中关于ioctl的问题
1、提示：错误： 初始值设定项里有未知的字段‘ioctl’
2.6以后的内核中file_operation结构体已经删除了ioctl函数，取代的是：
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
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 long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); 11 long (*compat_ioctl) (struct file *, unsigned int, unsigned long); 12 int (*mmap) (struct file *, struct vm_area_struct *); 13 int (*open) (struct inode *, struct file *); 14 int (*flush) (struct file *, fl_owner_t id); 15 int (*release) (struct inode *, struct file *); 16 int (*fsync) (struct file *, loff_t, loff_t, int datasync); 17 int (*aio_fsync) (struct kiocb *, int datasync); 18 int (*fasync) (int, struct file *, int); 19 int (*lock) (struct file *, int, struct file_lock *); 20 ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int); 21 unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); 22 int (*check_flags)(int); 23 int (*flock) (struct file *, int, struct file_lock *); 24 ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); 25 ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); 26 int (*setlease)(struct file *, long, struct file_lock **); 27 long (*fallocate)(struct file *file, int mode, loff_t offset, 28 loff_t len); 29 int (*show_fdinfo)(struct seq_file *m, struct file *f); 30 };
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 };