Comment # 1 on bug 1190539 from Michael Krapp

BUT: if I first connect a USB3 hub to the USB-A socket, and connect the disk to
the hub, then I can use it:


23:04:32 susi kernel: usb 4-2: new SuperSpeed USB device number 7 using
xhci_hcd
 23:04:32 susi kernel: usb 4-2: New USB device found, idVendor=2109,
idProduct=0812, bcdDevice= b.e1
 23:04:32 susi kernel: usb 4-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
 23:04:32 susi kernel: usb 4-2: Product: USB3.0 Hub      
 23:04:32 susi kernel: usb 4-2: Manufacturer: VIA Labs, Inc.      
 23:04:32 susi kernel: hub 4-2:1.0: USB hub found 
 23:04:32 susi kernel: hub 4-2:1.0: 4 ports detected
 23:04:32 susi kernel: usb 3-2: new high-speed USB device number 4 using
xhci_hcd
 23:04:32 susi kernel: usb 3-2: New USB device found, idVendor=2109,
idProduct=2812, bcdDevice= b.e0
 23:04:32 susi kernel: usb 3-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
 23:04:32 susi kernel: usb 3-2: Product: USB2.0 Hub      
 23:04:32 susi kernel: usb 3-2: Manufacturer: VIA Labs, Inc.      
 23:04:32 susi kernel: hub 3-2:1.0: USB hub found 
 23:04:32 susi kernel: hub 3-2:1.0: 4 ports detected
 23:04:33 susi kernel: usb 4-2.3: new SuperSpeed USB device number 8 using
xhci_hcd
 23:04:33 susi kernel: usb 4-2.3: New USB device found, idVendor=0bda,
idProduct=8153, bcdDevice=30.00
 23:04:33 susi kernel: usb 4-2.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=6
 23:04:33 susi kernel: usb 4-2.3: Product: USB 10/100/1000 LAN
 23:04:33 susi kernel: usb 4-2.3: Manufacturer: Realtek
 23:04:33 susi kernel: usb 4-2.3: SerialNumber: 000002000000
 23:04:34 susi kernel: usb 4-2.3: reset SuperSpeed USB device number 8 using
xhci_hcd
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb4/4-2
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb3/3-2
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb4/4-2/4-2.3
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb4/4-2/4-2.3
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb4/4-2/4-2.3
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb4/4-2/4-2.3
 23:04:34 susi upowerd[1707]: treating change event as add on
/sys/devices/pci0000:00/0000:00:08.1/0000:04:00.4/usb4/4-2/4-2.3
 23:04:41 susi kernel: usb 4-2.2: new SuperSpeed USB device number 9 using
xhci_hcd
 23:04:41 susi kernel: usb 4-2.2: New USB device found, idVendor=174c,
idProduct=55aa, bcdDevice= 1.00
 23:04:41 susi kernel: usb 4-2.2: New USB device strings: Mfr=2, Product=3,
SerialNumber=1
 23:04:41 susi kernel: usb 4-2.2: Product: ASM105x
 23:04:41 susi kernel: usb 4-2.2: Manufacturer: ASMT
 23:04:41 susi kernel: usb 4-2.2: SerialNumber: ACDFD0000000000007B4
 23:04:41 susi kernel: scsi host0: uas
 23:04:41 susi kernel: scsi 0:0:0:0: Direct-Access     ASMT     2115           
 0    PQ: 0 ANSI: 6
 23:04:41 susi kernel: sd 0:0:0:0: Attached scsi generic sg0 type 0
 23:04:41 susi kernel: sd 0:0:0:0: [sda] 937721856 512-byte logical blocks:
(480 GB/447 GiB)
 23:04:41 susi kernel: sd 0:0:0:0: [sda] Write Protect is off
 23:04:41 susi kernel: sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00
 23:04:41 susi kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
 23:04:41 susi kernel: sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes
 23:04:41 susi kernel:  sda: sda1
 23:04:41 susi kernel: sd 0:0:0:0: [sda] Attached SCSI disk


micha@susi:~> sudo fdisk -l /dev/sda
Disk /dev/sda: 447.14 GiB, 480113590272 bytes, 937721856 sectors
Disk model: 2115            
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 33553920 bytes
Disklabel type: dos
Disk identifier: 0x2606303b

Device     Boot Start       End   Sectors   Size Id Type
/dev/sda1        2048 937721855 937719808 447.1G 83 Linux

:~> mount |grep sda
/dev/sda1 on /mnt type xfs
(rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota)

:~> sudo dd if=/dev/sda of=/dev/null status=progress
2323831808 bytes (2.3 GB, 2.2 GiB) copied, 10 s, 232 MB/s^C
4651175+0 records in
4651174+0 records out
2381401088 bytes (2.4 GB, 2.2 GiB) copied, 10.2518 s, 232 MB/s