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From: Ganesan R <rganesan@myrealbox.com>
To: linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net
Cc: wes schreiner <wes@infosink.com>
Subject: Re: [linux-usb-devel] Re: Linux 2.6.x wrongly recognizes USB 2.0 DVD writer (solved)
Date: Wed, 20 Oct 2004 10:14:44 +0530	[thread overview]
Message-ID: <20041020044444.GA11635@cisco.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0410141025360.952-100000@ida.rowland.org>

On Thu, Oct 14, 2004 at 10:26:53AM -0400, Alan Stern wrote:
> 
> On Thu, 14 Oct 2004, Ganesan R wrote:
> > 
> > I checked the kernel sources. Sure enough, 
> > drivers/usb/storage/unusual_devs.h
> > has a new entry in the 2.6 tree:
> > 
> > ========
> > /* <torsten.scherer@uni-bielefeld.de>: I don't know the name of the bridge
> >  * manufacturer, but I've got an external USB drive by the Revoltec company
> >  * that needs this. otherwise the drive is recognized as /dev/sda, but any
> >  * access to it blocks indefinitely.
> >  */
> > UNUSUAL_DEV(  0x0402, 0x5621, 0x0103, 0x0103,
> >         "Revoltec",
> >         "USB/IDE Bridge (ATA/ATAPI)",
> >         US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_INQUIRY),
> > ========
> > 
> > I have not yet tested after removing this entry, but this looks to be 
> > the likely problem. The enclosure actually supports both 3.5 IDE hard 
> > disks as well as 5.25 CD/DVD drives. I have no clue why this entry 
> > should cause the drive to be wrongly detected. CCing linux-usb-devel for 
> > help.
> 
> Certainly that entry is the problem.  It has been removed in the latest 
> development kernels; it may already be gone in 2.6.9-rc4.

I removed that entry and recompiled 2.6.8. The drive is now recognized
properly again in 2.6.8. Thanks to every one who helped.

Ganesan

      reply	other threads:[~2004-10-20  4:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-14 11:14 Linux 2.6.x wrongly recognizes USB 2.0 DVD writer Ganesan R
2004-10-14 13:01 ` John Stoffel
2004-10-14 13:25   ` Ganesan R
2004-10-14 14:22     ` John Stoffel
2004-10-14 14:26     ` [linux-usb-devel] " Alan Stern
2004-10-20  4:44       ` Ganesan R [this message]

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