Migration from 8.3.9 to 9.2.6 - HiFiBerry DAC2 HD

[Tim Curtis]

It looks like it may have two configurable chip options
- Polarity inversion
- Digital filter

Code:

Simple mixer control 'DAC Invert Output',0
Simple mixer control 'DAC Rolloff Filter',0

Try the amixer command below. It should enumerate all the detail for the mixer controls

Code:

amixer -c1