Аудиокодек: список регистров
Unused
GAIN_HPF_COEF
The gain of the hpf coefficient setting which format is 3.24.(gain = 1)
Команда U-Boot для чтения регистра
typedef union ac_dac_drc_hpflgain { struct { unsigned gain_hpf_coef : 16; unsigned unused0 : 16; } b; unsigned long w; } AC_DAC_DRC_HPFLGAIN