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Re: FW: [Cooker] devfs & my cd-rw ide device

To: Thierry Vignaud <tvignaud@xxxxxxxxxxxxxxxx>
Subject: Re: FW: [Cooker] devfs & my cd-rw ide device
From: Borsenkow Andrej <Andrej.Borsenkow@xxxxxxxxxxxxxx>
Date: 02 Feb 2002 17:55:51 +0300
Cc: devfs mailing list <devfs@xxxxxxxxxxx>, Pixel <pixel@xxxxxxxxxxxxxxxx>
In-reply-to: <m2d6zu5utz.fsf@xxxxxxxxxxxxxxxxxxxxxx>
References: <005701c1a810$a0f4deb0$21c9ca95@xxxxxxxxxxxxxx> <m2d6zu5utz.fsf@xxxxxxxxxxxxxxxxxxxxxx>
Sender: owner-devfs@xxxxxxxxxxx
On Пнд, 2002-01-28 at 19:00, Thierry Vignaud wrote:
> Borsenkow Andrej <Andrej.Borsenkow@xxxxxxxxxxxxxx> writes:
> 
> > > > The problem is with devfs+ide-scsi there is no /dev/hdc (or 
> > > > /dev/ide/...)
> > > > if hdc is ide-scsi'd so it is impossible to use hdparm.
> > > 
> > > you can have it if you've both eide cd and ide-scsi drivers in kernel core
> > > (not tested with modules).
> > > 
> > > /dev/XX is availlable to hdparm even when XXX=ide-scsi is there.
                                                ^^^^^^^^^^^^ not quite
> >
> > What is eide? I can't find it anywhere in kernel-source.
> 
> you can say eide = ide = ata
> 
> extended ide has replaced ide for quite a number of years, now.
> 
> it provided us with :
> - two ide channels
> - atapi integration
> 
> it has then been enhanced to support higher data rate (udma 33, 66, 100, 133)
> 
> 
> i wanted to mean: normal ide driver for cds and ide-scsi.
> 

You can have both /dev/scd0 and /dev/hdd if you are using hdd=scsi. If
you are using hdd=ide-scsi you do not have /dev/hdd anymore (because it
effectively means to use ide-scsi driver so IDE layer does not see this
drive at all).

Pixel, should we default to hdX=scsi for SCSI emulation? Else it is
really bad for those who need hdparm-tune there bad burners.

-andrej

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