From: "David Härdeman" <david@2gen.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Is controlling DVD speeds via SET_STREAMING supported?
Date: Sat, 20 Nov 2004 17:45:40 +0100 [thread overview]
Message-ID: <20041120164537.GB14743@hardeman.nu> (raw)
In-Reply-To: <Pine.LNX.4.53.0411201727000.925@yvahk01.tjqt.qr>
On Sat, Nov 20, 2004 at 05:30:54PM +0100, Jan Engelhardt wrote:
>I doubt hdparm works on CD/DVD drives.
>What is setspeed doing, internally?
Well, hdparm does work for CD drives (hdparm -E), but not for CD/DVD
combo drives...
And also, the tools I was thinking of isn't called setspeed...it's called
setcd, and it uses ioctl(fd, CDROM_SELECT_SPEED, speed) which doesn't
work on DVD players apparently. The same goes for the other tools I've
tested ("hdparm -E" and "eject -x").
>
>My CD drives spin at "normal" (no more than speed 8) when playing CD-DA,
>if I am listening to Ogg, I manually spin it down by using "calm-cdrom".
>( http://linux01.org:2222/f/UHXT/sbin/src/calm-cdrom.c )
Which also uses the above mentioned ioctl...
Re,
David
next prev parent reply other threads:[~2004-11-20 16:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-20 16:17 Is controlling DVD speeds via SET_STREAMING supported? David Härdeman
2004-11-20 16:30 ` Jan Engelhardt
2004-11-20 16:45 ` David Härdeman [this message]
2004-11-20 20:19 ` Jens Axboe
2004-11-20 23:50 ` David Härdeman
-- strict thread matches above, loose matches on Subject: below --
2004-11-26 19:59 Thomas Fritzsche
2004-11-27 9:54 ` Thomas Fritzsche
2004-11-27 20:57 ` Pasi Savolainen
2004-11-27 21:02 ` Jan Engelhardt
2004-11-27 23:17 ` Thomas Fritzsche
2004-11-28 11:18 ` Pasi Savolainen
2004-11-28 14:25 ` Thomas Fritzsche
2004-11-28 16:52 ` Jens Axboe
2004-11-28 17:49 ` Pasi Savolainen
2004-11-28 16:53 ` Thomas Fritzsche
2004-11-28 18:53 ` Jens Axboe
2004-11-28 21:01 ` Pasi Savolainen
2004-11-29 6:19 ` Jens Axboe
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