在linux-2.6.30版本中tty_flip.h extern int tty_buffer_request_room(struct tty_struct *tty, size_t size); extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size); extern int tty_insert_flip_string_fixed_flag(struct tty_struct *tty, const unsigned char *chars, char flag, size_t size); extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size); extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size); void tty_schedule_flip(struct tty_struct *tty); static inline int tty_insert_flip_char(struct tty_struct *tty, unsigned char ch, char flag) { struct tty_buffer *tb = tty->buf.tail; if (tb && tb->used < tb->size) { tb->flag_buf_ptr[tb->used] = flag; tb->char_buf_ptr[tb->used++] = ch; return 1; } return tty_insert_flip_string_flags(tty, &ch, &flag, 1); }
static inline int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size) { return tty_insert_flip_string_fixed_flag(tty, chars, TTY_NORMAL, size); }
在linux-2.6.14版本中tty_flip.h文件 #ifndef _LINUX_TTY_FLIP_H #define _LINUX_TTY_FLIP_H
#ifdef INCLUDE_INLINE_FUNCS #define _INLINE_ extern #else #define _INLINE_ static __inline__ #endif
_INLINE_ void tty_insert_flip_char(struct tty_struct *tty, unsigned char ch, char flag) { if (tty->flip.count < TTY_FLIPBUF_SIZE) { tty->flip.count++; *tty->flip.flag_buf_ptr++ = flag; *tty->flip.char_buf_ptr++ = ch; } }
_INLINE_ void tty_schedule_flip(struct tty_struct *tty) { schedule_delayed_work(&tty->flip.work, 1); }
目前的tty驱动从linux-2.6.30版本移植到linux-2.6.14版本,里面需要用到tty_insert_flip_string这个接口,但是这个接口调用了如下的接口 tty_insert_flip_string_fixed_flag tty_buffer_request_room tty_buffer_find 这些接口在2.6.14中都没有想把tty_insert_flip_string移植到2.6.14版本的内核中,请问各位高手,需要怎么做? 谢谢!