[Bug 220331] New: FTDI serial IO - unknown device type: 0x8312

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220331

            Bug ID: 220331
           Summary: FTDI serial IO - unknown device type: 0x8312
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: tomas.hanslik@septim.cz
        Regression: No

Issue with a newer hardware with USB DisplayLink adapter, syslog throws
following error about unrecognized device type 0x8312:


> [    4.447826] usb 1-8.2.1: New USB device found, idVendor=17e9,
> idProduct=ff00, bbcdDevice=83.12
> [    4.447833] usb 1-8.2.1: New USB device strings: Mfr=1, Product=2,
> SerialNumber
> =3
> [    4.447835] usb 1-8.2.1: Product: PM1000
> [    4.447836] usb 1-8.2.1: Manufacturer: DisplayLink
> [    4.447837] usb 1-8.2.1: SerialNumber: 9638293100007141
> [    4.479297] usbcore: registered new interface driver ftdi_sio
> [    4.479363] usbserial: USB Serial support registered for FTDI USB Serial
> Device
> [    4.480786] ftdi_sio 1-8.2.1:1.0: FTDI USB Serial Device converter
> detected
> [    4.480848] ftdi_sio ttyUSB0: unknown device type: 0x8312
> [    4.480923] ftdi_sio 1-8.2.1:1.1: FTDI USB Serial Device converter
> detected
> [    4.480957] ftdi_sio ttyUSB1: unknown device type: 0x8312
> [    4.486014] ftdi_sio ttyUSB0: unknown device type: 0x8312
> [    4.486049] ftdi_sio ttyUSB1: unknown device type: 0x8312

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