Date: 6 Apr 2000 23:39:38 +0200 From: naddy@mips.rhein-neckar.de (Christian Weisgerber) To: freebsd-questions@freebsd.org Subject: Re: Serial->serial connection (sio0 -> sio1) Message-ID: <8cj06q$1g7v$1@bigeye.rhein-neckar.de> References: <Pine.BSF.4.21.0004011859490.310-100000@thelab.hub.org> <38E6E5EA.22A1038F@gorean.org> <8c7bgc$umu$1@bigeye.rhein-neckar.de> <38E75E14.2E0A7BF1@tdx.co.uk>
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Karl Pielorz <kpielorz@tdx.co.uk> wrote: > I've seen something that could, possibly be 'similar'... If I use 'ttyd0' as a > terminal in /etc/ttys - it doesn't work (or, rather - It does "appear" to work > once I have COMCONSOLE selected)... > > _BUT_ if I use 'cuaa0' in /etc/ttys - I get a working terminal on COM1 - > regardless... Uh, don't do that. > Maybe ttydX is more sensitive about handshaking / carrier detect or something? Yes, that's the point for modem use. Typically, when you open ttydX the open() call blocks until DCD is on. cuaX doesn't block. This also allows to dial in and out over the same port. getty(8) opens the tty and blocks until a call comes in. Meanwhile you can still open the corresponding cua device and dial out. If setting CLOCAL in the getty configuration doesn't stop it from blocking you can still wire DCD to active. -- Christian "naddy" Weisgerber naddy@mips.rhein-neckar.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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