Michael E Brown ([email protected]) worte :
> On Wed, 14 Feb 2001, Manfred Spraul wrote:
>
> > I have one additional user space only idea:
> > have you tried raw-io? bind a raw device to the partition, IIRC raw-io
> > is always in 512 byte units.
>
> That has been tried. No, it does not work. :-) Using Scsi-Generic is the
> only way so far found, but of course, it only works on SCSI drives.
Did you try scsi-emulation on IDE disks ?
> >
> > Probably an ioctl is the better idea, but I'd use absolute sector
> > numbers (not relative to the end), and obviously 64-bit sector numbers -
> > 2 TB isn't that far away.
> >
>
> I was deliberately trying to limit the scope to avoid misuse. This is to
> work around a flaw in the current API, not to create a new API. Limiting
> access to only those blocks that would normally be inaccessible through
> the normal API seemed like the best bet to me.
--
David Balazic
--------------
"Be excellent to each other." - Bill & Ted
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On Wed, 14 Feb 2001, David Balazic wrote:
> Michael E Brown ([email protected]) worte :
>
> > That has been tried. No, it does not work. :-) Using Scsi-Generic is the
> > only way so far found, but of course, it only works on SCSI drives.
>
> Did you try scsi-emulation on IDE disks ?
I think that scsi-emulation works only for ATAPI devices. CDROMs are
normally ATAPI. HDs are normally just ATA. I don't think that would work,
but I have not tried it, either.
--
Michael Brown
Linux Systems Group
Dell Computer Corp
On Wed, 14 Feb 2001, David Balazic wrote:
> Did you try scsi-emulation on IDE disks ?
Don't be silly.
That emulation is from scsi-packet to atapi-packet.
Andre Hedrick
Linux ATA Development
ASL Kernel Development
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