Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: IDE/ATAPI in 2.5 | Date | 15 Jul 2002 22:28:43 -0700 |
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Followup to: <m165zhp9u1.fsf@frodo.biederman.org> By author: ebiederm@xmission.com (Eric W. Biederman) In newsgroup: linux.dev.kernel > > > > I'm talking specifically about ATAPI devices here. As we have already covered, > > not all ATA devices are ATAPI, but unless I'm completely off the wall, ATAPI is > > SCSI over IDE, and should be able to be driven as such. The lack of access to > > that interface using the established interface mechanisms just bites. > > ATAPI is SCSI like C is C++. There are strong similarities but they > are regulated by different groups, and have slightly different semantics. > Last I checked cdrecord already compensates for those differences but they > are there. >
This is a good analogy, and in that general vein don't forget there are considerable differences between different versions of SCSI as well. Just like there are, in many ways, bigger differences between K&R C and C99 than between contemporary C and C++. It should be possible to write code that handles either one, either generically (obviously the best) or with appropriate conditionals.
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