alsa-mixer: add support for Sennheiser GSX 1000/1200 gaming DACs
This adds support for the Sennheiser GSX 1000/1200 gaming DACs. It mostly works like a gaming USB headset, but it accepts an analog headset rather than being one itself.
This adds support for the Sennheiser GSX 1000/1200 gaming DACs. It mostly works like a gaming USB headset, but it accepts an analog headset rather than being one itself.