Date: Mon, 7 Feb 2005 10:38:47 +1030 From: "Wilkinson, Alex" <alex.wilkinson@dsto.defence.gov.au> To: usb@freebsd.org Subject: Re: [USB] JetFlash TS1GJF2B 2.00 Attempt to query devicesizefailed: UNIT ATTENTION [WORK AROUND Message-ID: <20050207000846.GD50431@squash.dsto.defence.gov.au> In-Reply-To: <20050111013925.GD32601@squash.dsto.defence.gov.au> References: <20050107064748.GE18554@squash.dsto.defence.gov.au> <41DE4E52.2040301@elischer.org> <20050111000956.GB32601@squash.dsto.defence.gov.au> <20050111013925.GD32601@squash.dsto.defence.gov.au>
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0n Tue, Jan 11, 2005 at 12:09:25PM +1030, Wilkinson, Alex wrote:
> 0n Tue, Jan 11, 2005 at 10:39:56AM +1030, Wilkinson, Alex wrote:
>
> > >> (da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
> > >> (da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
> > >> (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
> > >> (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
> > >> (da0:umass-sim0:0:0:0): UNIT ATTENTION asc:28,0
> > >> (da0:umass-sim0:0:0:0): Not ready to ready change, medium may have
> > >> changed
> > >> (da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
>
>Okay, I'm trying to make sense of the aforementioned debug output.
>
>1. (da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
> (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
>
> I'm suspecting that this means that the READ CAPACITY command
> failed, therefore we are unable to determine the device's
> physical parameters.
>
>2. (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
>
> Looks like we are waiting to for the device to become ready to be
> accessed.
>
>3. (da0:umass-sim0:0:0:0): UNIT ATTENTION asc:28,0
> (da0:umass-sim0:0:0:0): Not ready to ready change, medium may have changed
>
> This 'Additional Sense Code' seems to be where it fails. Looking at
> the RBC specs we should see an ASC/ASCQ of 'NEW MEDIA READY FOR
> ACCESS'. However, we don't.
>
>This is as far as I can go without having my hand held. I would dearly
>like to get this UMASS device working.
>
>Can any USB wizards please suggest quirks etc that could result in a
>solution.
removing 'device ehci' from my kernel allows this usb thumb drive to work.
umass0: USB Flash Disk, rev 2.00/2.00, addr 2
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <JetFlash TS1GJF2B 2.00> Removable Direct Access SCSI-2 device
da0: 1.000MB/s transfers
da0: 1000MB (2048000 512 byte sectors: 64H 32S/T 1000C)
What sux is that I cannot utilse the speed of USB 2.0 ;(
- aW
help
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