Comment 2 for bug 1774569

Nope, my speculation is definitely wrong. The disk shows up in lsscsi:

[anovak@octagon ~]$ lsscsi
...
[9:0:0:0] disk Seagate Backup+ Hub BK D781 /dev/sdb

Also, it shows up in lsusb -t with a "uas" driver.

Maybe the problem is the uas driver itself?

Here's the full description of the USB device, if that helps:

[anovak@octagon ~]$ sudo lsusb -v -d 0bc2:ab38

Bus 001 Device 008: ID 0bc2:ab38 Seagate RSS LLC
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 2.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x0bc2 Seagate RSS LLC
  idProduct 0xab38
  bcdDevice 1.00
  iManufacturer 2 Seagate
  iProduct 3 Backup+ Hub BK
  iSerial 1 NA8TQC87
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 85
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0xc0
      Self Powered
    MaxPower 0mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 2
      bInterfaceClass 8 Mass Storage
      bInterfaceSubClass 6 SCSI
      bInterfaceProtocol 80 Bulk-Only
      iInterface 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x02 EP 2 OUT
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 1
      bNumEndpoints 4
      bInterfaceClass 8 Mass Storage
      bInterfaceSubClass 6 SCSI
      bInterfaceProtocol 98
      iInterface 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
        Data-in pipe (0x03)
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x02 EP 2 OUT
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
        Data-out pipe (0x04)
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x83 EP 3 IN
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
        Status pipe (0x02)
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x04 EP 4 OUT
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
        Command pipe (0x01)
Binary Object Store Descriptor:
  bLength 5
  bDescriptorType 15
  wTotalLength 22
  bNumDeviceCaps 2
  USB 2.0 Extension Device Capability:
    bLength 7
    bDescriptorType 16
    bDevCapabilityType 2
    bmAttributes 0x0000f41e
      Link Power Management (LPM) Supported
  SuperSpeed USB Device Capability:
    bLength 10
    bDescriptorType 16
    bDevCapabilityType 3
    bmAttributes 0x00
    wSpeedsSupported 0x000e
      Device can operate at Full Speed (12Mbps)
      Device can operate at High Speed (480Mbps)
      Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport 1
      Lowest fully-functional device speed is Full Speed (12Mbps)
    bU1DevExitLat 10 micro seconds
    bU2DevExitLat 2047 micro seconds
Device Status: 0x0001
  Self Powered