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stty 9600 -hupcl < /dev/ttyS0

should do it.  Use stty hupcl if you want to turn if off after close.

sleep 1 < /dev/ttyS0 to pulse it for about a sec.


On Mon, 2004-12-27 at 12:43, Christopher Bergeron wrote:
> Does anyone know of a quick/simple/easy way I can raise the DTR signal 
> on my serial port?  I'm trying to determine if the port is bad.
> 



</pre>
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<li><strong><a name="00906" href="msg00906.html">[ale] quick way to raise DTR on serial port?</a></strong>
<ul><li><em>From:</em> cfowler at outpostsentinel.com (Christopher Fowler)</li></ul></li>
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