Date: Mon, 29 Nov 1999 11:21:36 +0000 From: Mike Bristow <mike@urgle.com> To: amobbs@allstor-sw.co.uk Cc: "Koster, K.J." <K.J.Koster@research.kpn.com>, freebsd-hackers@freebsd.org Subject: Re: cdrom speed adjustment ioctl Message-ID: <19991129112136.A39768@lindt.urgle.com> In-Reply-To: <80256838.003D0E73.00@mail.plasmon.co.uk> References: <80256838.003D0E73.00@mail.plasmon.co.uk>
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On Mon, Nov 29, 1999 at 11:06:53AM +0000, amobbs@allstor-sw.co.uk wrote:
> >There would not be such a thing for SCSI cdrom's too? It would probably
> >squeeze a few extra months out of my cdrom player. On some cd's (mainly ones
> >you get with magazines and books) it's making gut-wrenching noises and
> >spinning up and down all the time.
>
> No idea if there's an ioctl, but you should be able to do this with camcontrol,
> e.g. if your drive supports the MMC Set CD Speed command:
>
> camcontrol -n cd -u <n> -c "BB 00 XX XX 00 00 00 00 00 00 00 00"
>
> Where <n> is the number of the CD device you want to set the speed of, and XX XX
> is the hex of the desired speed in kbps.
Is this a project for a rainy day I see before me?
cdspeed(1) Imaginary Man Page cdspeed(1)
NAME
cdspeed - control (slow down!) the speed that a cdrom will operate at.
SYOPSIS
cdspeed <device> <speed muliplier>
YADDA
yadda yadda yadda
FreeBSD 3.3 November 29 1999 1
--
Mike Bristow, Geek At Large ``Beware of Invisible Cows''
GK/RT0011 - Essential reading for train-spotters.
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