Linux驱动开发杂记(0x18) - 内核tty接口各版本的变化(二)之tty_driver.h
2.6.17 - 2.6.18
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3struct tty_driver {
const char *devfs_name;
}1
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5struct tty_operations {
void (*set_termios)(struct tty_struct *tty, struct termios * old);
//改为
void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
}1
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15struct tty_driver {
struct termios init_termios; /* Initial termios */
//改为
struct ktermios init_termios; /* Initial termios */
struct termios **termios;
struct termios **termios_locked;
//改为
struct ktermios **termios;
struct ktermios **termios_locked;
void (*set_termios)(struct tty_struct *tty, struct termios * old);
//改为
void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
}1
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4struct tty_operations {
long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
}1
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4struct tty_driver {
long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
}1
extern struct tty_driver *tty_find_polling_driver(char *name, int *line);
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3struct tty_driver {
const struct tty_operations *ops;
}
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5struct tty_operations {
void (*put_char)(struct tty_struct *tty, unsigned char ch);
//改为
int (*put_char)(struct tty_struct *tty, unsigned char ch);
}1
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4struct tty_driver {
long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
}1
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4struct tty_operations {
int (*write_proc)(struct file *file, const char __user *buffer,
unsigned long count, void *data);
}1
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32struct tty_driver {
int (*open)(struct tty_struct * tty, struct file * filp);
void (*close)(struct tty_struct * tty, struct file * filp);
int (*write)(struct tty_struct * tty,
const unsigned char *buf, int count);
void (*put_char)(struct tty_struct *tty, unsigned char ch);
void (*flush_chars)(struct tty_struct *tty);
int (*write_room)(struct tty_struct *tty);
int (*chars_in_buffer)(struct tty_struct *tty);
int (*ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
long (*compat_ioctl)(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg);
void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
void (*throttle)(struct tty_struct * tty);
void (*unthrottle)(struct tty_struct * tty);
void (*stop)(struct tty_struct *tty);
void (*start)(struct tty_struct *tty);
void (*hangup)(struct tty_struct *tty);
void (*break_ctl)(struct tty_struct *tty, int state);
void (*flush_buffer)(struct tty_struct *tty);
void (*set_ldisc)(struct tty_struct *tty);
void (*wait_until_sent)(struct tty_struct *tty, int timeout);
void (*send_xchar)(struct tty_struct *tty, char ch);
int (*read_proc)(char *page, char **start, off_t off,
int count, int *eof, void *data);
int (*write_proc)(struct file *file, const char __user *buffer,
unsigned long count, void *data);
int (*tiocmget)(struct tty_struct *tty, struct file *file);
int (*tiocmset)(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
}
2.6.26 - 2.6.27
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3struct tty_operations {
int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty, struct winsize *ws);
}1
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5struct tty_operations {
void (*break_ctl)(struct tty_struct *tty, int state);
//改为
int (*break_ctl)(struct tty_struct *tty, int state);
}
2.6.29 - 2.6.30
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7struct tty_operations {
struct tty_struct * (*lookup)(struct tty_driver *driver, struct inode *inode, int idx);
int (*install)(struct tty_driver *driver, struct tty_struct *tty);
void (*remove)(struct tty_driver *driver, struct tty_struct *tty);
void (*shutdown)(struct tty_struct *tty);
int (*set_termiox)(struct tty_struct *tty, struct termiox *tnew);
}1
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3struct tty_driver {
struct kref kref; /* Reference management */
}
1 | extern void tty_driver_kref_put(struct tty_driver *driver); |
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3struct tty_driver {
int refcount; /* for loadable tty drivers */
}
2.6.28 - 2.6.29
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4struct tty_operations {
int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty, unsigned int rows, unsigned int cols);
int (*resize)(struct tty_struct *tty, struct winsize *ws);
}
2.6.29 - 2.6.30
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3struct tty_operations {
const struct file_operations *proc_fops;
}1
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4struct tty_operations {
int (*read_proc)(char *page, char **start, off_t off, int count, int *eof, void *data);
}
2.6.31 - 2.6.32
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3struct tty_operations {
void (*cleanup)(struct tty_struct *tty);
}
2.6.36 - 2.6.37
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3struct tty_operations {
int (*get_icount)(struct tty_struct *tty, struct serial_icounter_struct *icount);
}1
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15struct tty_operations {
int (*ioctl)(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg);
// 改为
int (*ioctl)(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
long (*compat_ioctl)(struct tty_struct *tty, struct file * file,unsigned int cmd, unsigned long arg);
// 改为
long (*compat_ioctl)(struct tty_struct *tty,unsigned int cmd, unsigned long arg);
int (*tiocmget)(struct tty_struct *tty, struct file *file);
int (*tiocmset)(struct tty_struct *tty, struct file *file,unsigned int set, unsigned int clear);
// 改为
int (*tiocmget)(struct tty_struct *tty);
int (*tiocmset)(struct tty_struct *tty, unsigned int set, unsigned int clear);
}
3.2 - 3.3
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5struct tty_driver {
......
struct ktermios **termios_locked;
......
}1
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5struct tty_driver {
......
int minor_num; /* number of *possible* devices */
......
}
3.6 - 3.7
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5struct tty_driver {
......
struct tty_port **ports;
......
}
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7struct tty_driver {
......
struct cdev cdev;
// 改为
struct cdev *cdevs;
......
}
4.2 - 4.3
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7struct tty_driver {
......
struct cdev *cdevs;
// 改为
struct cdev **cdevs;
......
}1
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7struct tty_operations {
......
struct tty_struct * (*lookup)(struct tty_driver *self, int idx);
// 改为
struct tty_struct * (*lookup)(struct tty_driver *self, struct file *, int idx);
......
}1
2struct tty_struct * (*lookup)(struct tty_driver *self, int idx)
struct tty_struct * (*lookup)(struct tty_driver *self, struct file *, int idx)
4.13 - 4.14
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5struct tty_operations {
......
void (*show_fdinfo)(struct tty_struct *tty, struct seq_file *m);
......
}1
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5struct tty_operations {
......
int (*proc_show)(struct seq_file *, void *);
......
}1
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5struct tty_operations {
......
const struct file_operations *proc_fops;
......
}
4.19 - 4.20
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6struct tty_operations {
......
int (*get_serial)(struct tty_struct *tty, struct serial_struct *p);
int (*set_serial)(struct tty_struct *tty, struct serial_struct *p);
......
}