From owner-freebsd-hackers Wed Oct 29 15:34:43 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id PAA24904 for hackers-outgoing; Wed, 29 Oct 1997 15:34:43 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from alpo.whistle.com (alpo.whistle.com [207.76.204.38]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id PAA24887 for ; Wed, 29 Oct 1997 15:34:37 -0800 (PST) (envelope-from julian@whistle.com) Received: (from daemon@localhost) by alpo.whistle.com (8.8.5/8.8.5) id PAA17370; Wed, 29 Oct 1997 15:25:21 -0800 (PST) Received: from current1.whistle.com(207.76.205.22) via SMTP by alpo.whistle.com, id smtpd017364; Wed Oct 29 23:25:12 1997 Date: Wed, 29 Oct 1997 15:23:31 -0800 (PST) From: Julian Elischer To: S?ren Schmidt cc: FreeBSD hackers Subject: Re: Multi CD CDROM drive support added to current In-Reply-To: <199710292212.XAA00392@sos.freebsd.dk> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by hub.freebsd.org id PAA24898 Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk One modification you might consider is an interlock, where once it has accepted a command for one drive, it only queues (and doesn't execute) commands for the other drives for some period (e.g. 2 seconds) and then swap, julian On Wed, 29 Oct 1997, S?ren Schmidt wrote: > For those that dont read the commit logs: > > First cut at supporting multi-CD CDROM drives (changers). > > Very rudimentary, lots of error checks missing, but it works. > Dont do an ls on two different CD's though, it will eat your > changer mechanism for lunch :), this clearly needs some more > thought. Until then this will enable those with changers to > mount their multible CD's and doing "sensible" work.... > > Thanks to Andrew Gordon for donating a drive > (a NEC CDR-C251 4x4) that makes this possible to develop. > > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team > Even more code to hack -- will it ever end > .. >