[t13] SCSI ATA f/w revision bytes how many

Andre Hedrick t13 at linux-ide.org
Thu Jun 3 04:30:24 PDT 2004


This message is from the T13 list server.



Pat,

ATA taskfile passthough was released years ago, but the meatballs at the
top are not bright enough to grasp the obvious when it is handed to them.

Andre Hedrick
LAD Storage Consulting Group

On 24 May 2004, Pat LaVarre wrote:

> This message is from the T13 list server.
> 
> 
> > > would be much better to provide the "ATA passthru" SCSI opcode that I 
> > > am planning to provide, as this will give everyone full access to the 
> > > ATA taskfile.
> > 
> > Yes ... I remember ...
> 
> Kindly offline I am reminded that people say Linux has a couple of
> generations of bidirectional ATA pass thru defined, also Microsoft has a
> bidirectional ATA pass thru in Windows Server 2003 ...
> 
> If true, then to add ATA into SCSI, we could emulate either of those
> standards with a command out/ data out command followed by a data in/
> status in command.
> 
> That approach would work for any host able to guarantee no other command
> interrupts in the middle.  Other hosts would prefer we try to get by, as
> the usb.org effort may have done, with less than 10 bytes of command out
> sandwiched between opcode and control byte.
> 
> Pat LaVarre
> 
> 




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