Date: Fri, 30 Jun 95 8:00:26 MET DST From: sos@freebsd.org To: freelist@elf.kendall.mdcc.edu (FreeBSD Mailing List drop) Cc: sos@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: your mail Message-ID: <9506300600.AA27812@login.dknet.dk> In-Reply-To: <Pine.BSF.3.91.950629131517.27470B-100000@elf.kendall.mdcc.edu>; from "FreeBSD Mailing List drop" at Jun 29, 95 1:17 pm
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In reply to FreeBSD Mailing List drop who wrote:
> On Thu, 29 Jun 1995 sos@freebsd.org wrote:
> [re: IDE CDROM driver]
> > What I'd like to know a little more about is how it coexists
> > with "normal" disks on the same controller ?? This is VERY
> > important as most IDE PC's come with the disk as master and the
> > CDROM as slave on the SAME controller. This ultimately mandates
> > that the driver should be able to handle both disks and CDROM's,
> > or we will once again have two drivers talking to the same
> > hardware (that does sound familliar though :-( ), which won't
> > work very well, if at all.
>
> Are you sure about this "most" rating? Admittedly we're a Gateway-centric
> shop here, but the machines we have bought from them with IDE CD ROMs not
> only come with their own IDE controllers, but claim in the documentation
> that using them on the same controller will result in poor performance.
> Similarly, the few IDE CD ROMs I have looked at in the store all came
> with their own IDE controllers.
Yes I'm positive, this is the way many "el cheapo" machines are
setup here. I aggree its a bad idea, but we have to support the
situation on the whole thing is kind of pointless. I would also
give us a true ATA dirver for handling the more modern E-IDE
disk's (and as a side effect we could get a rewrite/replacement
for wd.c).
What it all boils down to is that I'm not very entusiastic about
getting support for this in by some quick hacked driver that has
too many limitations, our users will scream at us for claiming
having support for IDE CDROM's and then only having a halfbacked
version. Besides Linux got it right, why should we ????
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Soren Schmidt (sos@FreeBSD.org | sos@login.dknet.dk) FreeBSD Core Team
So much code to hack -- so little time
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