ATAPICAM support for IDE Tape drive

[jasondic at sbcglobal.net]

Hi Nate,

   6 Byte MODE SENSE/SELECT READ/WRITE are usually the norm for all IDE tape 
drives.

-Jason

On Wednesday 20 August 2003 16:55, Nate Lawson wrote:
> On Wed, 20 Aug 2003, Rohit Jalisatgi wrote:
> > > camcontrol devlist
> >
> > <Seagate STT20000A 8A51> at scbus1 target 0 lun 0
> > (sa0, pass0)
> >
> > The following READ CDB gives me an error
> >
> > CDB: 0x08 0x01 0x00 0x00 0x01 0x00
> >
> > Scsi Status: 0x02
> >
> > Sense Data: 0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x0a
> > 0x00 0x00 0x00 0x00
> > 0x20 0x00
> >
> > SenseKey : 0x05 ie Illegal Request
> > Additional Sense: 0x20 0x00 ie Invalid operation code.
>
> That means it doesn't like 6 byte commands.
>
> > Could anyone please help me with the above error?
> >
> > Do I need to apply any patches to the ATAPICAM? Does
> > the ATAPICAM
> > support IDE tape drives.
>
> I may need to add sa(4) support for the PIM_NO_6_BYTE flag.  Can someone
> else remind me if 6 byte commands are ever legal for some ATAPI devices?
> I can't remember if there were any exceptions or if 10 byte is the
> minimum.
>
> -Nate
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