From owner-freebsd-questions Sun Feb 4 19:23:39 2001 Delivered-To: freebsd-questions@freebsd.org Received: from grumpy.dyndns.org (user-24-214-56-129.knology.net [24.214.56.129]) by hub.freebsd.org (Postfix) with ESMTP id EB83637B698 for ; Sun, 4 Feb 2001 19:23:19 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by grumpy.dyndns.org (8.11.1/8.11.1) with ESMTP id f153NAN97607; Sun, 4 Feb 2001 21:23:10 -0600 (CST) (envelope-from dkelly@grumpy.dyndns.org) Message-Id: <200102050323.f153NAN97607@grumpy.dyndns.org> X-Mailer: exmh version 2.3.1 01/18/2001 with nmh-1.0.4 To: Conrad Sabatier Cc: Kenneth Culver , freebsd-questions@FreeBSD.ORG From: David Kelly Subject: Re: burncd In-reply-to: Message from Conrad Sabatier of "Sun, 04 Feb 2001 12:49:14 CST." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 04 Feb 2001 21:23:10 -0600 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Conrad Sabatier writes: > > On 04-Feb-01 Kenneth Culver wrote: > > > > culverk:~:# burncd -f /dev/acd1c -s 6 data ./cd.iso fixate > ^^^^ > |||| > > I believe the only speed settings that burncd supports are 1, 2 and 4. > > > burncd: ioctl(CDRIOCOPENTRACK): Input/output error /usr/src/usr.sbin/burncd/burncd.c: while ((ch = getopt(argc, argv, "ef:pqs:t")) != -1) { switch (ch) { [...] case 's': speed = atoi(optarg); break; [...] if (ioctl(fd, CDRIOCWRITESPEED, &speed) < 0) err(EX_IOERR, "ioctl(CDRIOCWRITESPEED)"); I have used burncd with "-s 8" and "-s 12" where it really did run at those speeds. Looking at the sources above it is clear there is no range limit but if the driver didn't like the speed a different error would come up when the speed was set. Interesting as this is on a CDROM, not CD-R[W]. Error below is correct. But apparently the speed was successfully set. burncd -f /dev/acd0c -s 12 msinfo burncd: ioctl(CDRIOCNEXTWRITEABLEADDR): Input/output error Had a Philips 804 8/4/32 CD-RW for two awful weeks (in short it wrote OK but had problems reading what it wrote while other drives did not have any problems reading the same). Would not burn in 1x mode, the slowest it could do was 2x as measured with wall clock and observing the device thruput with "systat -v". When told to do 1x, it did 2x. So possibly if one were to attempt a burn at 24x with a 12x drive it would silently do whatever it has to? Don't have one under my fingertips to try at them moment. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message