thank you for the answer.
I know absolutely nothing about usb protocol, howto write a device driver and sound card. So it's not today that i am going to write a driver for this device.
Netherless if you know a (free) software that can explore the protocol I take it. and too a starting point papers to read about them .
2014-05-20 11:10 GMT+02:00 Daniel Mack <daniel@xxxxxxxxxx>:
Ah, right, now I remember. The driver is not compatible to yourOn 05/20/2014 12:08 AM, jean-noël chardron wrote:
>
> Also, I the sound card is a high-speed USB device, so you certainly need
> ehci_hcd. Which error did you see?
>
>
> Daniel
>
> t seems that there is a constraint on the usb.. the driver is only in
> usb 1.1 even if the card is in usb 2.0
> the initial log is :
> [44038.762643] usb 1-5: New USB device found, idVendor=0644, idProduct=8020
> [44038.762653] usb 1-5: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [44038.762661] usb 1-5: Product: US-144 MKII
> [44038.762667] usb 1-5: Manufacturer: TASCAM
> [44038.762674] usb 1-5: SerialNumber: no serial number
> [44038.849752] disable ehci-hcd to run US-144
> [44038.849772] disable ehci-hcd to run US-144
> [44038.849808] usbcore: registered new interface driver snd-usb-us122l
hardware, and nobody knows what needs to be done in order to make it
work. Same goes for other models such as the TASCAM US-1800. These
devices use a proprietary protocol, undisclosed by the vendor.
If you're up for reverse-engineering the protocol, that'd be your chance
to get involved :) If you're not, I think there's little hope anything
will happen on this topic any time soon.
Daniel
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