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From: paul@taniwha.UUCP (Paul Campbell)
Newsgroups: comp.unix.aux
Subject: Re: Is A/UX Mature?
Message-ID: <819@taniwha.UUCP>
Date: 16 Apr 91 18:33:03 GMT
References: <1530@ucl-cs.uucp>
Reply-To: paul@taniwha.UUCP (Paul Campbell)
Organization: Taniwha Systems Design, Oakland
Lines: 25

In article <1530@ucl-cs.uucp> J.Purchase@cs.ucl.ac.uk (Jan Purchase) writes:
>c) Why can one not change the speed of a serial port which does not
>have a getty process associated with it (e.g., one connected
>to a outgoing only modem)?  commands like:
>	stty -n /dev/modem 1200
>or:
>	stty 1200 < /dev/modem
>which are quoted in SVR2 text books have no effect. A/UX just keeps
>the line speed at the default 9600 baud.

Whenever you close a serial port (ie all processes that have it open
close it) it resets the port's state (including baud rate and all the
settings - with the exclusion of the apple defined ones like -modem).
This is standard SVR2 (despite what the books might say). Every Unix I've
ever used did the same thing ...


	Paul


-- 
Paul Campbell    UUCP: ..!mtxinu!taniwha!paul     AppleLink: CAMPBELL.P

"But don't we all deserve.
 More than a kinder and gentler fuck" - Two Nice Girls, "For the Inauguration"