From owner-freebsd-stable@FreeBSD.ORG Mon Feb 4 12:04:50 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 81A3716A477; Mon, 4 Feb 2008 12:04:50 +0000 (UTC) (envelope-from marka@isc.org) Received: from drugs.dv.isc.org (drugs.dv.isc.org [IPv6:2001:470:1f00:820:214:22ff:fed9:fbdc]) by mx1.freebsd.org (Postfix) with ESMTP id 3A31213C501; Mon, 4 Feb 2008 12:04:50 +0000 (UTC) (envelope-from marka@isc.org) Received: from drugs.dv.isc.org (localhost [127.0.0.1]) by drugs.dv.isc.org (8.14.2/8.14.1) with ESMTP id m14C4lTO074894; Mon, 4 Feb 2008 23:04:48 +1100 (EST) (envelope-from marka@drugs.dv.isc.org) Message-Id: <200802041204.m14C4lTO074894@drugs.dv.isc.org> To: Eugene Grosbein From: Mark Andrews In-reply-to: Your message of "Mon, 04 Feb 2008 14:08:32 +0700." <20080204070832.GA97372@svzserv.kemerovo.su> Date: Mon, 04 Feb 2008 23:04:47 +1100 Sender: marka@isc.org Cc: Jeremy Chadwick , FreeBSD Stable Mailing List , Ganbold Subject: Re: /dev/cuad0: Device busy X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Feb 2008 12:04:50 -0000 > > Personally, I never understood the concept of "dial-in" and "call-out" > > devices on FreeBSD. I ran BBS software for years on both Apple II > > hardware and PC hardware; there was no distinction between such devices. > > A serial port is a serial port. Chances are I'm not understanding why > > there's a distinction, but there doesn't appear to be any explanation of > > why there's a distinction within manpages or the handbook... > > The distinction exists to allow an application to wait on the "dial-in" > port for incoming calls and another application to make outgoing call > mean time using the same port as "call-out" while the port is idle. And once there is a incoming call block out going calls until the incoming call completes. > > Eugene Grosbein > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews@isc.org