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SubjectRe: Unsupported DisplayLink (udl or udlfb module)
From
Dear Paolo Bolzini,

On Mon, Jul 22, 2013 at 2:58 PM, Paolo Bolzoni
<paolo.bolzoni.brown@gmail.com> wrote:
> Dear kernel list,
> I bought a DVI to VGA adapter[0] hoping to make it work with the
> modules udl or udlfb. The program lsusb does recognize it as a
> DisplayLink:
>
> //// lsmod output:
> Bus 002 Device 004: ID 17e9:4300 DisplayLink
>
> But, it does not matter what of the two modules I have loaded it
> seems the kernel does not recognize it
Matching is done by VID = 0x17e9 which seem match but then by
bInterfaceClass = 0xff, bInterfaceSubClass = 0x00 and bInterfaceProtocol = 0x00.
Can you please post lsusb -v to check what are other parameters for your device.
>
> # modprobe udl
> //// plugging
> # dmesg|tail -3
> [ 5500.731973] usb 2-1: new SuperSpeed USB device number 5 using xhci_hcd
> [ 5500.747190] usbip-host 2-1:1.0: 2-1 is not in match_busid table... skip!
> [ 5500.747760] usbip-host 2-1:1.1: 2-1 is not in match_busid table... skip!
> //// unplugging
> # rmmod udl
> # modprobe udlfb
> //// plugging
> # dmesg|tail -4
> [ 5544.168599] usb 2-1: USB disconnect, device number 5
> [ 5560.144758] usb 2-1: new SuperSpeed USB device number 6 using xhci_hcd
> [ 5560.160033] usbip-host 2-1:1.0: 2-1 is not in match_busid table... skip!
> [ 5560.160585] usbip-host 2-1:1.1: 2-1 is not in match_busid table... skip!
>
> I tried seeking on the Internet, but I could not find anything about
> this 17e9:4300 model. So I ask, it will be supported? It is already
> supported somewhat? Can I help? I have no experience in kernel
> programming; but asking is legit I guess.
>
> Please if you answer put my address paolo.bolzoni.brown@gmail.com in
> CC as I did not register to the mailing list scared by the huge volume.
>
> Yours sincerely,
> Paolo Bolzoni
>
>
> [0] http://www.amazon.co.uk/exec/obidos/ASIN/B0086359SG/ref=ox_ya_os_product
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Regards,

marek

--
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Marek Belisko - OPEN-NANDRA
Freelance Developer

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