Re: JMicron JMS567 and UAS

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On Fri, Sep 22, 2023 at 03:23:29PM +0200, Massimo Burcheri wrote:
> On Thu, 2023-09-21 at 10:23 -0400, Alan Stern wrote:
> 
> > > > > coming from https://lore.kernel.org/all/20200818041324.GA3173@Susan/
> 
> > That email refers to vendor & product 357d:7788.  But your device, as 
> > shown in the earlier email message, is 152d:0567.  So it's puzzling why 
> > you referred back to this bug report, even though the devices do have 
> > similar names (JMicron J566 and J567).
> 
> Sorry for confusing.
> I wrote to Cyril Roelandt and he said that he noticed that old thread had a typo
> with JMS566 and he was actually using the same JMS567 at that time.
> 
> Though productIds are still different:
> 
> Old thread:
> [Tue Aug 18 05:14:19 2020] usb 2-2: New USB device found, idVendor=357d, idProduct=7788, bcdDevice= 1.14
> [Tue Aug 18 05:14:19 2020] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> 
> My Log:
> Aug 27 19:00:47 [kernel] usb 4-5: New USB device found, idVendor=152d, idProduct=0567, bcdDevice=52.03
> Aug 27 19:00:47 [kernel] usb 4-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3

Okay.  Let's forget about the 357d:7788 device and focus on your 
152d:0567 device.  That will help reduce the confusion.

> > If you can, start by figuring out why your kernel isn't using the uas 
> > driver for the JMS567.  Is the driver itself blacklisted on your 
> > computer?
> 
> It's not blacklisted here afaik. This would be done in /etc/modprobe.d/*.conf
> and I have no entry about that device.
> 
> So you mean if not blacklisted by kernel and not locally blacklisted, uas is
> just not supported by that firmware? I'm going to check if I can just try other
> firmwares that were reported to support uas.
> 
> In the past I already got an enclosure supporting uas by just switching the
> firmware...that was:
> 
> Nov 23 10:25:27 [kernel] usb 4-6: new SuperSpeed Gen 1 USB device number 3 using xhci_hcd
> Nov 23 10:25:27 [kernel] usb 4-6: New USB device found, idVendor=174c, idProduct=55aa, bcdDevice= 1.00
> Nov 23 10:25:27 [kernel] usb 4-6: New USB device strings: Mfr=2, Product=3, SerialNumber=1
> Nov 23 10:25:27 [kernel] usb 4-6: Product: USB3-SATA-UASP1(modForGentoo)
> Nov 23 10:25:27 [kernel] usb 4-6: Manufacturer: StoreJet Transcend

Maybe the problem isn't blacklisting at all; maybe your JMS567 device's 
firmware just doesn't support UAS.

I don't think you have posted the "lsusb -v" output for this device.  
What does it say?

Alan Stern




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