linux-kernel - Re: No IDE drivers loaded for Toshiba Satellite 320 CDS

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Date:	Mon, 14 Apr 2008 14:56:07 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
Cc:	Frans Pop <elendil@...net.nl>, Tejun Heo <htejun@...il.com>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: Re: No IDE drivers loaded for Toshiba Satellite 320 CDS

> > 1) ide-generic is only loaded _after_ any otherwise detected modules

That is the correct approach, as with libata and ata_generic/pata_legacy

> > 2) it is only loaded if an ISA bus is present

All PC class systems have an ISA bus, it may be on the main board and
called LPC but it is there.

> > 3) it is only included in the initrd for the installed system if loading it
> >    in the installer resulted in additional block devices appearing
> 
> OK, great for x86 perhaps, what about other systems?

Should be valid for all sane ISA bus systems. The IDE legacy code as per
arch probe rules.

> > I would unload ide-generic in the installer if no additional block devices 
> > appear, but unfortunately that's not possible as it is marked "permanent".

Yes - old IDE doesn't do hotplugging, libata can so your approach would
work there.


Alan
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