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Also call the low-level driver if ->c_iflag & (IXON|IXOFF|IXANY) changes.

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Uftdi(4) examines (c_iflag & (IXON|IXOFF)) to control hw XON-XOFF support.
This is obviously no good, if changes to those bits are not communicated
down the stack.
This commit is contained in:
Poul-Henning Kamp 2012-02-26 20:56:49 +00:00
parent e5c92401dd
commit f9a61f7dcb
1 changed files with 2 additions and 0 deletions
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2
sys/kern/tty.c
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@ -1481,6 +1481,8 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
*/
if ((t->c_cflag & CIGNORE) == 0 &&
(tp->t_termios.c_cflag != t->c_cflag ||
((tp->t_termios.c_iflag ^ t->c_iflag) &
(IXON|IXOFF|IXANY)) ||
tp->t_termios.c_ispeed != t->c_ispeed ||
tp->t_termios.c_ospeed != t->c_ospeed)) {
error = ttydevsw_param(tp, t);