Date: Wed, 26 Feb 2003 10:48:21 -0600 From: Mike Meyer <mwm-dated-1046710102.65f571@mired.org> To: Konrad Heuer <kheuer2@gwdg.de> Cc: Brian Henning <b1henning@hotmail.com>, freebsd <freebsd-questions@FreeBSD.ORG> Subject: Re: rfd0 fd0 Message-ID: <15964.61397.904986.726598@guru.mired.org> In-Reply-To: <20030226133214.F29371-100000@gwdu60.gwdg.de> References: <15963.37824.912975.511372@guru.mired.org> <20030226133214.F29371-100000@gwdu60.gwdg.de>
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In <20030226133214.F29371-100000@gwdu60.gwdg.de>, Konrad Heuer <kheuer2@gwdg.de> typed: > On Tue, 25 Feb 2003, Mike Meyer wrote: > > In <20030225083805.S29371-100000@gwdu60.gwdg.de>, Konrad Heuer <kheuer2@gwdg.de> typed: > > > On Mon, 24 Feb 2003, Brian Henning wrote: > > > > what is the difference between these two devices? > > > fd0 ist a block-oriented device, data are cached in the buffer cache; > > > rfd0 is a byte-oriented raw device; data are always read from or > > > immediately written to the device. > > This is out-of-date information. Both fd0 and rfd0 are raw character > > devices these days. The old names were kept around for backwards > > compatability, but there is no difference between them. > What does it mean - "these days"? When did the change occur? I'm not sure. 4.6 sounds right, but might not be. To get exact details, check the CVS logs. I'd check /dev/MAKEDEV. <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/consulting.html Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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