Line Discipline or Termios lacks ?

Joel Sherrill joel.sherrill at
Thu Sep 18 18:13:47 UTC 2003

Sergei Organov wrote:

> Brett Swimley <brett.swimley at> writes:
>>Joel Sherrill wrote:
> [...]
>>>Also I have searched a bit and not managaed to find a standard
>>>way of doing this function.  If there is a way on *BSD or Linux
>>>to do this, it would be nice to use those names for the IOCTLS
>>>and possibly add them to the standard list.
>>I researched this a ways back and think I discarded my notes. I just did a
>>quick search and found that Linux accomplishes this through the TIOCMGET and
>>TIOCMSET ioctls. IIRC, this is what I found way back when. Don't know if *BSD
>>has similar functionality.
> I believe it does. Solaris does as well. In addition, there are often
> forgotten TIOCSBRK/TIOCCBRK ioctls to manage TxD line (very handy when one
> needs to emulate synchronous protocol with UART;) ).

Are those primitive versions of tcsendbreak()?

> BR,
> Sergei.

Joel Sherrill, Ph.D.             Director of Research & Development
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