Fix for broken DSP volume control. Adding get_dsp_mixer() to get mixer by name (in this case DSPVolume). Without this alsaaudio is looking for mixer under card 0 by default and fails whenever DAC DSP card is not device 0.
I have tested it on volumio 3.378, Raspberry Pi 3 B+, hifiberry-dsp version 0.20 and Hifiberry DAC DSP v1.3.
Fix for broken DSP volume control. Adding get_dsp_mixer() to get mixer by name (in this case DSPVolume). Without this alsaaudio is looking for mixer under card 0 by default and fails whenever DAC DSP card is not device 0.
I have tested it on volumio 3.378, Raspberry Pi 3 B+, hifiberry-dsp version 0.20 and Hifiberry DAC DSP v1.3.
Issue: https://github.com/hifiberry/hifiberry-dsp/issues/39