Re: kernel 2.4.* vs 2.6.* and ATAPI dvd question
On Mon, 16 Jan 2006 16:53:44 -0400
Greg <firstname.lastname@example.org> wrote:
> At last!
> Not only am I not inebriated, but I remembered where I read what I
> based my missive on. :-)
> An extract from which goes as follows:
> "The ATAPI standard describes method of sending SCSI commands over IDE
> transport with some small limitations to the "real" SCSI standard.
> SCSI commands are send via IDE transport using the 'ATA packet'
> command. There is no SCSI emulation - ATAPI drives include native
> SCSI command support. For this reason, sending SCSI commands to ATAPI
> drives is the native method of supporting ATAPI devices. Just imagine
> that IDE is one of many SCSI low level transport mechanisms.
> This is a list of some known SCSI transports:
> - Good old Parallel SCSI 50/68 pin (what most people call SCSI)
> - SCSI over fiber optics (e.g. FACL - there are others too)
> - SCSI over a copper variant of FCAL (used in modern servers)
> - SCSI over IEEE 1394 (Fire Wire)
> - SCSI over USB
> - SCSI over IDE (ATAPI)
> As you now see, the use of the naming convention "ATAPI-SCSI emulation"
> is a little bit misleading. It should rather be called:
> "IDE-SCSI host adapter emulation"
> Sooo, hopefully I was "wrong", but I knew what I really meant(?).
I can live with that. ;)
I remember reading some time ago about how SCSI specifications get borrowed from on occasion in the creation of other specifications/standards.
A quick google search produces:
: which I am pretty sure was the same thing I read before.