}
static int
-srmcons_chars_in_buffer(struct tty_struct *tty)
-{
- return 0;
-}
-
-static int
srmcons_open(struct tty_struct *tty, struct file *filp)
{
struct srmcons_private *srmconsp = &srmcons_singleton;
.close = srmcons_close,
.write = srmcons_write,
.write_room = srmcons_write_room,
- .chars_in_buffer= srmcons_chars_in_buffer,
};
static int __init
return 32768; /* no limit, no buffer used */
}
-static int pdc_console_tty_chars_in_buffer(struct tty_struct *tty)
-{
- return 0; /* no buffer */
-}
-
static const struct tty_operations pdc_console_tty_ops = {
.open = pdc_console_tty_open,
.close = pdc_console_tty_close,
.write = pdc_console_tty_write,
.write_room = pdc_console_tty_write_room,
- .chars_in_buffer = pdc_console_tty_chars_in_buffer,
};
static void pdc_console_poll(struct timer_list *unused)
return 2 * 1024;
}
-static int rs_chars_in_buffer(struct tty_struct *tty)
-{
- /* the iss doesn't buffer characters */
- return 0;
-}
-
static void rs_hangup(struct tty_struct *tty)
{
/* Stub, once again.. */
.put_char = rs_put_char,
.flush_chars = rs_flush_chars,
.write_room = rs_write_room,
- .chars_in_buffer = rs_chars_in_buffer,
.hangup = rs_hangup,
.wait_until_sent = rs_wait_until_sent,
.proc_show = rs_proc_show,
}
}
-/*
- * Returns the number of characters in the output buffer. This is
- * used in tty_wait_until_sent to wait until all characters have
- * appeared on the screen.
- */
-static int
-tty3270_chars_in_buffer(struct tty_struct *tty)
-{
- return 0;
-}
-
static void
tty3270_flush_buffer(struct tty_struct *tty)
{
.put_char = tty3270_put_char,
.flush_chars = tty3270_flush_chars,
.write_room = tty3270_write_room,
- .chars_in_buffer = tty3270_chars_in_buffer,
.flush_buffer = tty3270_flush_buffer,
.throttle = tty3270_throttle,
.unthrottle = tty3270_unthrottle,
return tty_buffer_space_avail(tty->link->port);
}
-/**
- * pty_chars_in_buffer - characters currently in our tx queue
- * @tty: our tty
- *
- * Report how much we have in the transmit queue. As everything is
- * instantly at the other end this is easy to implement.
- */
-
-static int pty_chars_in_buffer(struct tty_struct *tty)
-{
- return 0;
-}
-
/* Set the lock flag on a pty */
static int pty_set_lock(struct tty_struct *tty, int __user *arg)
{
.write = pty_write,
.write_room = pty_write_room,
.flush_buffer = pty_flush_buffer,
- .chars_in_buffer = pty_chars_in_buffer,
.unthrottle = pty_unthrottle,
.ioctl = pty_bsd_ioctl,
.compat_ioctl = pty_bsd_compat_ioctl,
.write = pty_write,
.write_room = pty_write_room,
.flush_buffer = pty_flush_buffer,
- .chars_in_buffer = pty_chars_in_buffer,
.unthrottle = pty_unthrottle,
.set_termios = pty_set_termios,
.cleanup = pty_cleanup,
.write = pty_write,
.write_room = pty_write_room,
.flush_buffer = pty_flush_buffer,
- .chars_in_buffer = pty_chars_in_buffer,
.unthrottle = pty_unthrottle,
.ioctl = pty_unix98_ioctl,
.compat_ioctl = pty_unix98_compat_ioctl,
.write = pty_write,
.write_room = pty_write_room,
.flush_buffer = pty_flush_buffer,
- .chars_in_buffer = pty_chars_in_buffer,
.unthrottle = pty_unthrottle,
.set_termios = pty_set_termios,
.start = pty_start,
return 32768; /* No limit, really; we're not buffering */
}
-static int con_chars_in_buffer(struct tty_struct *tty)
-{
- return 0; /* we're not buffering */
-}
-
/*
* con_throttle and con_unthrottle are only used for
* paste_selection(), which has to stuff in a large number of
.write_room = con_write_room,
.put_char = con_put_char,
.flush_chars = con_flush_chars,
- .chars_in_buffer = con_chars_in_buffer,
.ioctl = vt_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = vt_compat_ioctl,