Date: Wed, 16 Nov 2005 18:34:24 -0800
From: Pete Zaitcev <zaitcev@redhat.com>
To: David =?UTF-8?B?SMOkcmRlbWFu?= <david@2gen.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: USB key generates ioctl_internal_command errors
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On Wed, 16 Nov 2005 23:52:32 +0100, David Härdeman <david@2gen.com> wrote:

> usb-storage: waiting for device to settle before scanning
>   Vendor: I0MEGA    Model: UMni1GB*IOM2K4    Rev: 1.01
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> SCSI device sda: 2048000 512-byte hdwr sectors (1049 MB)
> sda: Write Protect is off
> sda: Mode Sense: 00 00 00 00
> sda: assuming drive cache: write through
> ioctl_internal_command: <8 0 0 0> return code = 8000002
>    : Current: sense key=0x0
>     ASC=0x0 ASCQ=0x0
> SCSI device sda: 2048000 512-byte hdwr sectors (1049 MB)

I think it's harmless. I saw things like that, and initially I plugged
them with workarounds like this:

/*
 * Pete Zaitcev <zaitcev@yahoo.com>, from Patrick C. F. Ernzer, bz#162559.
 * The key does not actually break, but it returns zero sense which
 * makes our SCSI stack to print confusing messages.
 */
UNUSUAL_DEV(  0x0457, 0x0150, 0x0100, 0x0100,
		"USBest Technology",	/* sold by Transcend */
		"USB Mass Storage Device",
		US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE ),

But perhaps we want the SCSI stack to do something about it, dunno.

If you're nervous about messages, use ub, it's mostly silent :-)

-- Pete
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