can audio CDs be played with ATA_CAM ?

Daniel O'Connor doconnor at
Tue Oct 25 13:08:30 UTC 2011

On 25/10/2011, at 23:24, Jeremy Chadwick wrote:
>> These may not be the same problem, but I think they are related (a not so well
>> documented change in the kerm interface).
> You want atapicam(4).  This is not the same thing as "options ATA_CAM".
> See /sys/conf/NOTES.
> Whether or not it works with audio CDs is unknown to me.

atapicam is a bridge for the old ATA code to put ATAPI devices _only_ on CAM (as well as the ATA infrastructure). Hence they appear as /dev/cd0 and so on.

ATA_CAM puts _all_ ATA devices on CAM, so you should be able to access your audio CD that way. 

I just tried and it ripped a CD fine using cdparanoia and cdcontrol seemed to play it OK (although I don't have the analogue output of this drive hooked up to the audio system).

This is not to say that there isn't a bug in the ATA_CAM code :)

Daniel O'Connor software and network engineer
for Genesis Software -
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