The AMD CS5536 Geode on the ALIX.3D3 board has an included audio controller which headset output and microphone input is populated on the board. lspci lists the audio controller as

00:0f.3 Multimedia audio controller: Advanced Micro Devices [AMD] CS5536 [Geode companion] Audio (rev 01)

ALSA (Advanced Linux Sound Architecture) supports this chip. Continue reading →