linux-kernel - Re: serial flow control appears broken

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Message-ID: <20070726174150.4ffcabd4@the-village.bc.nu>
Date:	Thu, 26 Jul 2007 17:41:50 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Lee Howard <faxguy@...ardsilvan.com>
Cc:	Uwe Kleine-König 
	<ukleinek@...ormatik.uni-freiburg.de>,
	linux-serial@...r.kernel.org, tytso@....edu, rmk@....linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: serial flow control appears broken

> The manufacturer is using a scope to look for RTS and they're not seeing 
> it, either.  I just use my eyes to look at the LED, but I can see the 
> CTS, DTR, DCD, RD, and TD lights blink, flicker, or dim... (and TD, RD, 
> and CTS tend to go on and off rather quickly).

And you have

1.	The port set up correctly for flow control options in the
kernel ?
2.	Verified that the board vendor remembered to wire it ?
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