Re: Warning, cua2 opened, ...

Gert Doering (gert@greenie.muc.de)
Sun, 15 Mar 1998 18:26:44 +0100 (MET)

Alan Cox wrote:

>> The proper way to open POSIX tty devices is as follows. First, open
>> them with the O_NONBLOCK flag; this guarantees that they won't block
>> waiting for carrier detect. Secondly, use the fcntl() call to clear the

>It doesnt however seem to guarantee they wont get hung up on instantly
>before they can issue a tcsetattr() ?

IIRC, the hangup is only generated on a DCD *drop*, not on DCD being
already low.

gert

-- 
email: gert@greenie.muc.de   fax: +49-89-3244814   http://www.leo.org/~doering


Every nation has the government it deserves.
               --Joseph De Maistre


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