[AIC3254 & purepath] How to choose the channel of "Mono_Mux" and change the volume in real-time ?

I use purepath create a header file:

typedef struct {
            u8 control_page;           //coefficient page location
            u8 control_base;           //coefficient base address within page
            u8 control_mute_flag;      //non-zero means muting required
            u8 control_string_index;   //string table index
} control; 


static control MUX_controls[] = {
{45,112,1,0},
{45,116,1,1},
{46,40,1,2}
};

static string MUX_control_names[] = {
"Input_Mode",
"Filter_Select",
"Filter_Select_1"
};

static control VOLUME_controls[] = {
{44,68,0,0},
{10,44,0,1}
};

static string VOLUME_control_names[] = {
"Volume_1",
"Volume_3"
};

//INSTRUCTIONS & COEFFICIENTS
typedef struct {
    u8 reg_off;
    u8 reg_val;
} reg_value;

static string REG_Section_names[] = {
    "miniDSP_A_reg_values",
    "miniDSP_D_reg_values",
};

How to use these coefficient to change the MUX channel and change volume?

If I want to change the "Input_Mode" channel to "channel 2". How to do that?