Stuff

cat /proc/asound/card0/codec97#0/ac97#0-0
0-0/0: C-Media Electronics CMI9761

PCI Subsys Vendor: 0x1462
PCI Subsys Device: 0x7230

Revision         : 0x01
Compat. Class    : 0x02
Subsys. Vendor ID: 0xffff
Subsys. ID       : 0xffff

Capabilities     :
DAC resolution   : 16-bit
ADC resolution   : 16-bit
3D enhancement   : No 3D Stereo Enhancement

Current setup
Mic gain         : +20dB [+20dB]
POP path         : pre 3D
Sim. stereo      : off
3D enhancement   : off
Loudness         : off
Mono output      : MIX
Mic select       : Mic2
ADC/DAC loopback : off
Double rate slots: 10/11
Extended ID      : codec=0 rev=2 AMAP LDAC SDAC CDAC DSA=0 SPDIF DRA
Extended status  : SPCV LDAC SDAC CDAC SPDIF=6/9 SPDIF
SPDIF Control    : Consumer PCM Copyright Category=0x2 Generation=1 Rate=48kHz