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Message-ID: <58cb370e050505051360d0588c@mail.gmail.com>
Date: Thu, 5 May 2005 14:13:20 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Reply-To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
       linux-kernel@vger.kernel.org
Subject: Re: /proc/ide/hd?/settings obsolete in 2.6.
In-Reply-To: <20050505111324.GA17223@animx.eu.org>
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References: <20050505004854.GA16550@animx.eu.org>
	 <58cb370e050505031041c2c164@mail.gmail.com>
	 <20050505111324.GA17223@animx.eu.org>
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Hi,

On 5/5/05, Wakko Warner <wakko@animx.eu.org> wrote:
> Bartlomiej Zolnierkiewicz wrote:
> > On 5/5/05, Wakko Warner <wakko@animx.eu.org> wrote:
> > > If this interface is obsolete and will be removed, is there any non-obsolete
> > > way of telling the kernel what geometry I want to use for this ide device?
> >
> > Yes, physical geometry - through boot parameters and logical geometry
> > is not needed for IDE layer to function properly.
> 
> I did not ask if it was needed for it to function, I asked how to set it
> since the "settings" file is obsolete.  Yes, I do need to set this.  I want
> to know what the "non-obsolete" way is.  A project I'm working on uses linux
> to do something with the drive and that is dependant on the geometry that
> linux provides to programs be the same as what the bios thinks.  I know how
> to obtain the bios values.  I have to set these values to the kernel so
> everything functions properly.
> 
> If there is no "non-obsolete" way of doing this, then fine, I'll continue
> with the settings thing.

Please be aware that new applications are expected to use
/sys/firmware/edd/default_* instead of legacy HDIO_GETGEO ioctl
and there is currently no way to set these sysfs entries (maybe it
would be worthwile to add such functionality?).

Thanks,
Bartlomiej
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