NUM_MUX_0_VSS
if (chan->type == IIO_VOLTAGE && chan->channel >= NUM_MUX_0_VSS)
chan7_mux_names[chan->channel - NUM_MUX_0_VSS]);
MESON_SAR_ADC_MUX(NUM_MUX_0_VSS, 0),
MESON_SAR_ADC_MUX(NUM_MUX_0_VSS, 0),
sel = chan7_mux_values[chan->channel - NUM_MUX_0_VSS];