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Date: Wed, 21 Feb 2001 22:23:58 +0100
From: Vojtech Pavlik <vojtech@suse.cz>
To: linux-kernel@vger.kernel.org
Subject: Re: [patch] VIA 4.2x driver for 2.2 kernels
Message-ID: <20010221222358.A1665@suse.cz>
In-Reply-To: <20010220134028.A5762@suse.cz> <20010220155927.A1543@cm.nu> <20010221080919.A469@suse.cz> <20010220231502.A4618@cm.nu> <20010221082348.A908@suse.cz> <20010221110533.B3374@iname.com>
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In-Reply-To: <20010221110533.B3374@iname.com>; from rbrito@iname.com on Wed, Feb 21, 2001 at 11:05:33AM -0300
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On Wed, Feb 21, 2001 at 11:05:33AM -0300, Rogerio Brito wrote:
> On Feb 21 2001, Vojtech Pavlik wrote:
> > On Tue, Feb 20, 2001 at 11:15:02PM -0800, Shane Wegner wrote:
> > > Ok, can I still use -u1 -k1 -c1 on the drives or is it even
> > > necessary anymore.
> > 
> > If you enable automatic DMA in the kernel config, it isn't necessary
> > at all. The VIA driver sets up everything.
> 
> 	Ok. Please disregard my last message (this one contains
> 	exactly what I was looking for).
> 
> > 4) But VIA is still set to PIO mode
> 
> 	Why does this happen?
> 
> 	And what about the other options to hdparm (-u1 -k1 -c1)? Are
> 	they potentially dangerous also?

Well, I checked today and my fears were *not* confirmed. Actually the
VIA driver will set up the chipset for UDMA even when UDMA won't be
later used, so it's all OK.

-- 
Vojtech Pavlik
SuSE Labs
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