On Wed, 9 Aug 2006, Klaus Muth wrote:
> Hi!
>
> Thank you very much for looking into my problem.
> > Interesting. You said above that the vendor and product IDs are 0x557 and
> > 0x2008. How come they show up here as 0x0000 and 0x0000?
>
> ARGH! I mixed up the devices! 0x557/0x2008 is in fact a Prolific USB to
> serial
> device. I thought, I did my homework properly before posting to the mailing
> list... Not good enough. The OPTAC reports in fact 0x0000/0x0000.
> Will 0x0000/0x0000 help? All host controllers have the same IDs.
That's not a valid ID. But maybe it's possible to work around your
problem anyway.
> > What shows up in /proc/bus/usb/devices when you plug in the device?
>
> [EMAIL PROTECTED]:~# cat /proc/bus/usb/devices
> T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=0000 ProdID=0000 Rev= 1.00
> S: Manufacturer=Manufacturer
> S: Product=Stoneridge OPTAC
> S: SerialNumber=0401
> C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA
> I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
> E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
You know, this gives every indication of being a pre-production model.
The Manufacturer string is obviously bogus and there are no vendor or
product IDs. The serial number also does not have the required form. If
these devices are being sold, the public should be warned that they are
not compatible with the USB spec.
Anyway, here's something you can try that might help. Before plugging in
the device, do this:
modprobe scsi-mod
echo 'SRE:OPTAC Tool:0x80000' >/proc/scsi/device_info
If it still doesn't work, please provide another verbose usb-storage
debugging log.
Alan Stern
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