CM9780_FMIC2MIC
!!(oxygen_read_ac97(chip, 0, CM9780_JACK) & CM9780_FMIC2MIC);
newreg = oldreg | CM9780_FMIC2MIC;
newreg = oldreg & ~CM9780_FMIC2MIC;
oxygen_ac97_set_bits(chip, 0, CM9780_JACK, CM9780_FMIC2MIC);