[LAU] Hardware Soundcard - MOTU 624 AVB Working with Gnu/Linux - Debian 8.7

[Paul Davis]

Could anyone working with the MOTU ultralite confirm that they have routing
from analog inputs to the computer working? I can see signal showing up in
the routing matrix and device page, and the device shows up as intended
with 18 channels of input in JACK / ALSA, but I don't get any signal, even
though I routed 6 analog input channels to "To Computer 1" through "To
Compute 6". Really puzzled ... everything suggests that this should just
work....

On Sun, Jul 23, 2017 at 6:26 AM, Anders Hellquist <lau at hellquist.net> wrote:

> The linked product is a rj45 splitter that is very usable for running two
> Ethernet connections thru a single cable but you need one of these at both
> endpoints and this has nothing to do with my use case. I know that a switch
> is the solution and was only stating the limitation gnu Linux users will
> face because of the missing control link.
>
> I am quite happy with the product and I usually only need one card
> connected to my laptop and the things are just great as for the rest of gnu
> AVB users. It was only a heads up for the issue.
>
> I hope that we in the future will have access without need for the AVB
> switch, both for cost effectiveness and reduced complexity.
>
> /Anders
>
> On Jul 23, 2017 01:49, <list at contacte.xyz> wrote:
>
>> Hello.
>>
>> For me there is no confusion here.
>>
>> Motu AVB's cards serie is not - officially - supported by MOTU for
>> Gnu/Linux. Even without the «Linux» stamp on it from MOTU it's the more
>> advanced card you can control without headache under Gnu/Linux.
>>
>> The feature you talk about is for proprietary Operating system with
>> Motu's drivers - with some limitations.
>>
>> Either you bought the wrong cards, or using the wrong operating system
>> for your need - it's only a guess.
>>
>> The AVB switch *is* your solution.
>>
>> Or you can try, the kernel module something like : CONFIG_USB_NET_* and
>> try different devices under to see if your log show something when you plug
>> any of your MOTU cards...
>>
>> Or you can try something like this :
>>
>> http://i2.cdscdn.com/pdt2/5/2/2/1/700x700/auc3548389018522/r
>> w/doubleur-de-port-rj-45-blinde.jpg
>>
>> sorry don't know the name in English...
>>
>> Let us know the result....
>>
>>
>>
>>
>>
>> All the best.
>>
>>
>>
>>
>>
>> On 2017-07-23 00:20, Anders Hellquist wrote:
>>
>>> There is confusion for sure.
>>>
>>> if I link my two Motu ultralite AVB cards together by using the two
>>> AVB ethernet sockets and a Cat5 or Cat6 cable. I have used all
>>> ethernet connectors available and the AVB devices can talk to each
>>> other but no other networking is available. If I point a browser to
>>> any of the ip's of those boxes i will not get an answer since there is
>>> no possible route to those cards that only have a link between them.
>>> The cards have no built in wifi or extra ethernet jack.. How could I
>>> possibly connect to them except by usb and Class Compliant Audio
>>> connection which does not give me the extra IP over USB that the
>>> windows/osx driver provides...
>>>
>>> I have never said anything about AVB over USB but only mentioned the
>>> missing linux link which is the possibility to access the http web gui
>>> trough the USB (or for cards with Thunderbolt) driver provided ip-link
>>> (for control only)
>>>
>>> As I tried to explain. Linux users must have a AVB compliant switch to
>>> get a network link to be able to manage Linked AVB devices OR have
>>> windows/osx boxes connected via USB/Thunderbolt to one of the AVB
>>> devices.
>>>
>>> Trust me, I am not confused but only stating the obvious that linking
>>> to cards with just a cable will create an isolated AVB cluster that
>>> will not be manageable from linux computers until someone figures out
>>> how to write a driver to get the IP-over USB passthru to work.
>>>
>>> /Anders
>>>
>>
>>
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