From owner-freebsd-current@FreeBSD.ORG  Tue Sep 21 10:19:34 2004
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To: "Alexandre \"Sunny\" Kovalenko" <Alex.Kovalenko@verizon.net>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 21 Sep 2004 06:17:05 EDT."
             <1095761825.2535.31.camel@RabbitsDen> 
Date: Tue, 21 Sep 2004 12:19:32 +0200
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cc: freebsd-current@freebsd.org
Subject: Re: TTY cleanups have started... 
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In message <1095761825.2535.31.camel@RabbitsDen>, "Alexandre \"Sunny\" Kovalenk
o" writes:

>> I bet you the problem is the DCD, since the most recent commit makes
>> ucom0 act like a real tty devices (rather than a cua device).
>> 
>> Can you try adding "O_NDELAY" to the open flags ?
>
>I have added O_NDELAY and 'open' went through. Will it break application
>or three or is it just me being silly?

Hopefully the discussion now on arch@ will result in us having "cua" devices
for USB serial ports, and that will solve the problem by giving you a
device you can open when there is no DCD signal present.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.