Hello, first post in this list. I'm not sure if this is the right place to fill a bug report.
The issue I encountered is on a Roland VS-100, an hi-end interface similar to VS-20: https://www.roland.com/global/products/v-studio_100/ 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 same desktop pc: working (my current setup): http://alsa-project.org/db/?f=a3378ecb0a258b4745827c693f4c0045fdb83847 non working (live): http://alsa-project.org/db/?f=99bcdd5a60281110a93317d09a11b9f4831f9701 in the non working case the interface is recognised by "lsusb", it is seen by "aconnect -l" but not by "aplay -l". I'm willing to solve the issue and to help to the best of my possibilities (if needed also by recompiling the kernel) There is a long thread on linux musicians forum about this issue: https://linuxmusicians.com/viewtopic.php?t=23883 Hope you guys can help. thanks in advance, Alberto
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