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tty: rework break handling

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Some hardware needs to do break handling itself and may have partial
support only. Make break_ctl return an error code. Add a tty driver flag
so you can indicate driver hardware side break support.

Signed-off-by: Alan Cox <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Alan Cox 2008-07-22 11:18:03 +01:00 • committed by Linus Torvalds
commit 9e98966c7b
20 changed files with 97 additions and 84 deletions
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3
drivers/isdn/capi/capi.c
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@ -1302,11 +1302,12 @@ static void capinc_tty_hangup(struct tty_struct *tty)
#endif
}
static void capinc_tty_break_ctl(struct tty_struct *tty, int state)
static int capinc_tty_break_ctl(struct tty_struct *tty, int state)
{
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_break_ctl(%d)\n", state);
#endif
return 0;
}
static void capinc_tty_flush_buffer(struct tty_struct *tty)