When I plug my USB reader (11b0:6348) into my computer (MSI X399 Carbon Pro, Threadripper 1900X), I get warnings about a bad usb cable: Sep 22 11:11:51 ciri kernel: usb 5-3.3-port4: Cannot enable. Maybe the USB cable is bad? Sep 22 11:11:52 ciri kernel: usb 5-3.3.4: new high-speed USB device number 15 using xhci_hcd Sep 22 11:11:52 ciri kernel: usb 5-3.3.4: New USB device found, idVendor=11b0, idProduct=6348, bcdDevice= 1.11 Sep 22 11:11:52 ciri kernel: usb 5-3.3.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Sep 22 11:11:52 ciri kernel: usb 5-3.3.4: Product: USB3.0 Media Reader Sep 22 11:11:52 ciri kernel: usb 5-3.3.4: Manufacturer: Kingston Sep 22 11:11:52 ciri kernel: usb 5-3.3.4: SerialNumber: 201402131335 Sep 22 11:11:52 ciri kernel: usb-storage 5-3.3.4:1.0: USB Mass Storage device detected Sep 22 11:11:52 ciri kernel: scsi host11: usb-storage 5-3.3.4:1.0 This warning shows up on all USB3 ports that I plug it in to (tried 3 of them directly off the MB). I have also tried it using on the other side of a USB3 hub (2109:8110) and still receive the same message. I have tried 3 different USB cables and all report the same warning. If I instead plug into one of the USB2 only ports ("console ports" on MB) I get no warning: Sep 22 11:37:15 ciri kernel: usb 1-12: new high-speed USB device number 8 using xhci_hcd Sep 22 11:37:15 ciri kernel: usb 1-12: New USB device found, idVendor=11b0, idProduct=6348, bcdDevice= 1.11 Sep 22 11:37:15 ciri kernel: usb 1-12: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Sep 22 11:37:15 ciri kernel: usb 1-12: Product: USB3.0 Media Reader Sep 22 11:37:15 ciri kernel: usb 1-12: Manufacturer: Kingston Sep 22 11:37:15 ciri kernel: usb 1-12: SerialNumber: 201402131335 Sep 22 11:37:15 ciri kernel: usb-storage 1-12:1.0: USB Mass Storage device detected Sep 22 11:37:15 ciri kernel: scsi host11: usb-storage 1-12:1.0 The warning appears to be mostly benign, as functionality appears to be unaffected. It did result in me purchasing a few replacement USB cables in an attempt to remove the warning. Anything I can do to "fix" this? I have verified the USB reader (FCR-HS3) is running the latest firmware from Kingston. I am running Linux v4.19-rc4-89-g6ad49fa1993d. Thanks, Barry (Opened https://bugzilla.kernel.org/show_bug.cgi?id=201209 before being redirected here).