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 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 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.

Thanks -- Till
-- 
Dipl.-Inform. Till Dörges                  doerges@pre-sense.de
PRESENSE Technologies GmbH             Nagelsweg 41, D-20097 HH
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Till Dörges, Jürgen Sander               USt-IdNr.: DE263765024