Date: Wed, 10 Jan 2001 17:02:53 -0800 From: bruno schwander <bschwand@dvart.com> To: Soren Schmidt <sos@freebsd.dk> Cc: multimedia@FreeBSD.ORG Subject: Re: xine and VCD support Message-ID: <3A5D063D.158D8D99@dvart.com> References: <200101102019.VAA22255@freebsd.dk>
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by looking into tosha I think it would not be too difficult to have a table
with known cddrive<->cddaread commands, and store the appropriate one at
attach time, then use this instead of whatever standard read command is
issued now when a cdda read is needed. Of course it may be much more
complicated than this since I don't know how the read is actually done.
I am a little confused by the cdevsw entries in the driver (ata and acd): how
is physread mapped ? when ?
can you shine some light on this ? The ata and acd do the same thing but I
don't see where the actual read code is.
bruno
Soren Schmidt wrote:
> > I would like to try and get this to work for SCSI cdrom drives too, but
> > the appropriate ioctls are not in the cd driver. Is anyone working on
> > this ? (not to start something if it is already done...)
>
> No idea, the problem is that the READ AUDIO etc command are not standard
> on older SCSI drives, each vendor has his own..
###########################################################################
Bruno Schwander
Senior Software Engineer
Worldgate Communications, Inc
tel: (408) 378-7800 x116
fax: (408) 378-8018
email: bschwand@dvart.com
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