Re: IDE? IDE-TNG driver

From: Andre Hedrick (
Date: Sat Aug 17 2002 - 18:06:46 EST

On Sat, 17 Aug 2002, Ruth Ivimey-Cook wrote:

> On Sat, 17 Aug 2002, Andre Hedrick wrote:
> >
> >ide_ioctl(fd, HDIO_SET_IDE_SCSI, bool)
> Seems fine to me...
> >Where bool does the subdriver switch.
> >Just that ioctl's are being blasted and people using are frowned upon.
> ? so how is cdrecord (or whatever) supposed to do its stuff -- is it ioctl()
> -> fcntl()? If so, I suppose that's ok, but the basic premise still exists,
> surely?
> >This was a feature Alan Cox poked me for to try and move away from how
> >modules are basically an all or nothing grab-all.
> I don't think modules are the answer to any of this:
> a) some people want basically module-less kernels

This is designed to work regardless.

/dev/hdc == ide-cd builtin
insmod ide-scsi

ide_ioctl(fd, HDIO_SET_IDE_SCSI, bool)

converts /dev/hdc == ide-cd builtin to ide-scsi(add-in-module).

> b) in some environments, you need to be able to select the IO mechanism
> without the ability to select the module to load.

See above, I think it solves the problem.
Once ide-scsi is added to the ide_module link list it is as good as

> anyway...
> <slightly confused by it all>

Me too, because I do not know the direction goal so I am doing the very
best I can. What I really need is an active development team.

Before me:

Mark Lord, Gadi Oxman, Eric Anderson worked well.

ML ide-disk and ide.c global.
GO ide-floppy, ide-tape, ide-scsi
EA ide-cd

Anyways that was long before transport layer w/ all the hardware issues
began to dominate things.


Andre Hedrick
LAD Storage Consulting Group

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