Fiio K7 Pro USB DAC no Alsamixer Volume Level

alsa-project/alsa-lib issue #444 was opened from Starfoxfs:

Hi,

i cant set any Volume Level on Fiio K7 Pro USB DAC. Alsamixer says "This Sound Device does not have any controls"

I use Wine with sound-alsa Output directly because of SampleRate for Audio Apps, but Volume is to high and i cant change it.

I can change the Pipewire or Pulse Volumes but this has no effect to the Alsa Volume.

Heres the alsa-info

[alsa-info.txt](https://github.com/user-attachments/files/19347989/alsa-info.txt)

Issue URL : https://github.com/alsa-project/alsa-lib/issues/444 Repository URL: https://github.com/alsa-project/alsa-lib