On Sunday 18 July 2004 20:22, Frederick Bruckman wrote:
>   # grep ^cd0 /var/run/dmesg.boot
>   cd0 at atapibus0 drive 0: <LTN486S, , YUS3> cdrom removable
>   cd0: 32-bit data port
>   cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
>   cd0(rccide0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
> (Ultra/33) (using DMA data transfers)
>
> and yet...
>
>   # scsictl cd0 identify
>   # /dev/rcd0d: scsibus0 target 0 lun 0 <LITEON, CD-ROM LTN486S, YUS3>
>
> So where is that "vendor id" coming from? (That's a CD-ROM on current,
> and the device I'm having the problem with is a DVD+RW, on 2.0_BETA.)

These are results of two different commands.  One is the ATA/ATAPI IDENTIFY 
PACKET DEVICE, and the other is the SCSI INQUIRY.  ATAPI devices typically 
support both.  (I forget whether that's required.)