Some volume controls are swapped

alsa-project/alsa-lib issue #410 was opened from suddenfall:

When using amixer and alsamixer, I noticed that the volume controls for certain channels are reversed. I have verified the problem with two sound cards:

Terratec Aureon XFire8.0HD hifidom DSC8-MAIN

Both are USB sound cards (UAC2).

Both sound cards have the channel map: FL FR FC LFE RL RR SL SR (cat stream0)

The channels FC/LFE are swapped with RL/RR.

I am using Ubuntu 24.04. The version of libasound2t64 is 1.2.11-1build2.

I am happy to help with troubleshooting.

Issue URL : https://github.com/alsa-project/alsa-lib/issues/410 Repository URL: https://github.com/alsa-project/alsa-lib