cat /proc/asound/card*/codec*/ac97*
0-0/0: Analog Devices AD1980

PCI Subsys Vendor: 0x1028
PCI Subsys Device: 0x0174

Capabilities     : -headphone out-
DAC resolution   : 20-bit
ADC resolution   : 16-bit
3D enhancement   : No 3D Stereo Enhancement

Current setup
Mic gain         : +0dB [+0dB]
POP path         : pre 3D
Sim. stereo      : off
3D enhancement   : off
Loudness         : off
Mono output      : MIX
Mic select       : Mic1
ADC/DAC loopback : off
Double rate slots: 10/11
Extended ID      : codec=0 rev=0 AMAP LDAC SDAC CDAC DSA=0 DRA VRA
Extended status  : LDAC SDAC CDAC VRA
PCM front DAC    : 48000Hz
PCM Surr DAC     : 48000Hz
PCM LFE DAC      : 48000Hz
PCM ADC          : 48000Hz



AD18XX configuration
Unchained        : 0x1000,0x0000,0x0000
Chained          : 0x0000,0x0000,0x0000
0:00 = 0090
0:02 = 0000
0:04 = 0000
0:06 = 0000
0:08 = 0000
0:0a = 0000
0:0c = 0000
0:0e = 0000
0:10 = 0000
0:12 = 0000
0:14 = 0000
0:16 = 0000
0:18 = 0000
0:1a = 0000
0:1c = 0f0f
0:1e = 0000
0:20 = 0000
0:22 = 0000
0:24 = 0000
0:26 = 000f
0:28 = 03c3
0:2a = 01f1
0:2c = bb80
0:2e = bb80
0:30 = bb80
0:32 = bb80
0:34 = 0000
0:36 = 0000
0:38 = 0000
0:3a = 2000
0:3c = 0000
0:3e = 0000
0:40 = 0000
0:42 = 0000
0:44 = 0000
0:46 = 0000
0:48 = 0000
0:4a = 0000
0:4c = 0000
0:4e = 0000
0:50 = 0000
0:52 = 0000
0:54 = 0000
0:56 = 0000
0:58 = 0000
0:5a = 0000
0:5c = 0000
0:5e = 0000
0:60 = 8080
0:62 = 0000
0:64 = 0000
0:66 = 0000
0:68 = 0000
0:6a = 0000
0:6c = 0000
0:6e = 0000
0:70 = 0000
0:72 = 0004
0:74 = 1001
0:76 = 6420
0:78 = 0000
0:7a = 0000
0:7c = 4144
0:7e = 5370