Hi,

For peoples interested with cd-rom support on Mac OS X, i think that you need to investigated in IOKit,
especially in SCSITaskDeviceInterface and MMCDeviceInterface.

Emmanuel


Le 14 oct. 2009 à 17:50, Roderick Colenbrander a écrit :

Hi,

I don't know much about the cd-rom stuff on osx but I expect there are
much more issues of which some are more severe than this (and the
solution might fix all the issues). I believe that on osx there is no
such thing as direct cd-rom access (anymore) and due to this I think
wine can't read audio tracks, neither can we write CDs from Wine or
read special data tracks needed for e.g. copy protections. As far as I
remember Transgaming wrote their own cd-rom driver for this, so
perhaps that's the direction we should head into as well else we will
never get copy protections working on OSX.

Roderick

On Wed, Oct 14, 2009 at 5:02 PM, <joerg-cyril.hoe...@t-systems.com> wrote:
Chip,

I had hoped that your patch would allow mcicda to work,
cf. bug #20323, alas it is not so.  Instead I get to see

ERR("This version of Mac OS X does not support IOCDAudioControl"
on Leopard.

I googled slightly and found a message from 2004:
http://lists.apple.com/archives/darwin-drivers/2004/Jul/msg00049.html
IOCDAudioControl is deprecated if not obsolete.

Therefore I believe the user should not be bothered with a reference
to something deprecated half a decade ago and unavailable.  A
subsequent patch to a simple FIXME("NIY\n") would be enough.
Please leave IOCDAudioControl in a comment in the code at most.

Reading further, it looks like there's nothing to read audio CDs
anymore.  Instead, developers are recommended to take advantage of
the cddafs, which mounts all audio tracks as
"/Volumes/Audio-CD/01 Titel 1.aiff" and to play those files with
CoreAudio instead.
I've checked that mixed CDs with both data files and audio tracks let
2 CD icons appear on the Finder's desktop, e.g. /Volumes/ABC/ and
/Volumes/Audio-CD/

So I wonder whether mcicda on Mac OS should forward calls to
waveaudio and play .aiff files instead.  I don't know how ntdll and
the mountmgr etc. could be changed to accomodate the separation in two volumes, i.e. how to map both /Volumes/ABC and /Volumes/Audio-CD/ to D:\

Regards,
       Jörg Höhle.








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