Re: Ext. HDDs not working under Linux via USB 3.0 but under Windows

["Till Dörges" <doerges@pre-sense.de>]

Am 18.06.20 um 09:30 schrieb Till Dörges:
> Am 18.06.20 um 08:07 schrieb Till Dörges:
>> Am 17.06.20 um 18:37 schrieb Alan Stern:
>>> On Wed, Jun 17, 2020 at 06:02:32PM +0200, Till Dörges wrote:
>>>> Hi Alan,
>>>>
>>>> sorry for the delay. It took me a while to get back to this.
>>>>
>>>> Am 23.05.20 um 22:33 schrieb Alan Stern:
>>>>
>>>>>>>> I'm trying to get external HDDs from Sony to work under Linux with USB 3.0.
>>>>>> [...]
>>>>>>>>  - PSZ-HA2T: idVendor=054c, idProduct=087d
>>>>>>>>  - PSZ-HA1T: idVendor=054c, idProduct=087d
>>>>>>>>  - PSZ-HA50: idVendor=054c, idProduct=087d
> [...]
>>>>>> --- snip ---
>>>>>> $ cat /sys/module/usb_storage/parameters/quirks
>>>>>> 054c:087d:f,054c:0c4f:f
>>>>>> --- snip ---
> [...]
>>>> --- snip ---
>>>> $ cat /sys/module/usb_storage/parameters/quirks
>>>> 054c:087d:u
>>>> --- snip ---
>>>>
>>>> W/o this quirk they do not work.
>>>>
>>>>
>>>> I'd be surprised if a non-broken PSZ-HA2T behaved any differently.
>>>>
>>>> So perhaps you might want to consider adding that quirk directly into the Kernel?
>>>>
>>>>
>>>> FTR, the PSZ-HC1T just worked.
>>>
>>> Okay.  If you would like to write a patch for the quirk and submit it, you 
>>> can.  Otherwise I'll write one for you.
>>
>> I'd gladly take your offer of writing one for me. :-)
> 
> Maybe I spoke too soon.

I actually did.

> I reported my results when setting the quirk 054c:087d:*u* (ignore UAS).
> 
> It just occurred to me that 054c:087d:*f* (NO_REPORT_OPCODES) might be sufficient.
> Before going ahead with the patch I suggest I check that, too.

It is. Both PSZ-HA drives work fine with just

--- snip ---
$ cat /sys/module/usb_storage/parameters/quirks
054c:087d:f
--- snap ---

Thanks -- Till
-- 
Dipl.-Inform. Till Dörges                  doerges@pre-sense.de
PRESENSE Technologies GmbH             Nagelsweg 41, D-20097 HH
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