Re: [BUG] Roland VS-100 not working, (possible) regression in snd_usb_audio

On Thu, 23 Feb 2023 14:24:32 +0100,
Alberto Zin wrote:
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> Hello, first post in this list. I'm not sure if this is the right place to
> fill a bug report.
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> The issue I encountered is on a Roland VS-100, an hi-end interface simila=
r to
> VS-20:
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> https://www.roland.com/global/products/v-studio_100/
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> it seems that snd_usb_audio module has broken the compatibility with the
> VS-100 at around krnel 5.11 time. I have two alsa-info reports, on the sa=
me
> desktop pc:
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> working (my current setup):
> http://alsa-project.org/db/?f=3Da3378ecb0a258b4745827c693f4c0045fdb83847
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> non working (live):
> http://alsa-project.org/db/?f=3D99bcdd5a60281110a93317d09a11b9f4831f9701=
=A0
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> in the non working case the interface is recognised by "lsusb", it is see=
n by
> "aconnect -l" but not by "aplay -l".
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> I'm willing to solve the issue and to help to the best of my possibilitie=
s (if
> needed also by recompiling the kernel)

What exactly is "broken"?  Please elaborate that part.
The probe of the VS-100 itself seems working with the new kernel, too,
so cannot judge without much detailed contexts.


thanks,

Takashi

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> There is a long thread on linux musicians forum about this issue:
> https://linuxmusicians.com/viewtopic.php?t=3D23883
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> Hope you guys can help.
> thanks in advance,
> Alberto
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