Unix Programming - Send a series of bit zeros through serial port

Author

Send a series of bit zeros through serial port

jwamicha

2006-07-31, 7:28 am

Hi,

I'm currently running linux on an embedded POS device
(http://www.linudix.com) which unfortunately I'm unable to recompile
Linux for. The support is also poor and so I have been unable to obtain
a response on the details of the serial device it is running.

The problem is tcsendbreak() simply does not work. I need to send
BREAK signal so I can get data off a weighing machine.

Does anyone know a way I can send a series of bit zero streams for
between 250ms and 500ms rather than using tcsendbreak?

Thanks a million.