From 283fef59d6e934e8da11631446ea8e2e93fce14c Mon Sep 17 00:00:00 2001 From: Paul Fulghum Date: Tue, 27 Jun 2006 02:54:00 -0700 Subject: [PATCH] tty: fix TCSBRK comment Fix TCSBRK comment to prevent confusion or accidental removal. Signed-off-by: Paul Fulghum Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/tty_io.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers/char/tty_io.c') diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 8b2a59969868..bd74e82d8a72 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -2621,10 +2621,9 @@ int tty_ioctl(struct inode * inode, struct file * file, tty->driver->break_ctl(tty, 0); return 0; case TCSBRK: /* SVID version: non-zero arg --> no break */ - /* - * XXX is the above comment correct, or the - * code below correct? Is this ioctl used at - * all by anyone? + /* non-zero arg means wait for all output data + * to be sent (performed above) but don't send break. + * This is used by the tcdrain() termios function. */ if (!arg) return send_break(tty, 250); -- cgit v1.2.1