AC97_RATES_MIC_ADC
snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
case AC97_PCM_MIC_ADC_RATE: idx = AC97_RATES_MIC_ADC; break;