Re: TTY cleanups have started...

From: Poul-Henning Kamp <phk_at_phk.freebsd.dk>
Date: Tue, 21 Sep 2004 07:58:45 +0200
In message <1095735454.2535.21.camel_at_RabbitsDen>, "Alexandre \"Sunny\" Kovalenk
o" writes:

>I do not own the breaker box so I can not tell you what modem signal
>states are, even though with 9 pin USB-to-serial dongle I would suspect
>we would be lucky if RTS and CTS actually change, most likely there are
>two data wires and software flow control, however, the right answer is:
>I don't know.

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 ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk_at_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.
Received on Tue Sep 21 2004 - 03:58:46 UTC

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