Also call the low-level driver if ->c_iflag & (IXON|IXOFF|IXANY) changes.
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.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=232197
@ -1481,6 +1481,8 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
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*/
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if ((t->c_cflag & CIGNORE) == 0 &&
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(tp->t_termios.c_cflag != t->c_cflag ||
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((tp->t_termios.c_iflag ^ t->c_iflag) &
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(IXON|IXOFF|IXANY)) ||
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tp->t_termios.c_ispeed != t->c_ispeed ||
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tp->t_termios.c_ospeed != t->c_ospeed)) {
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error = ttydevsw_param(tp, t);
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