CS4245_SIGNAL_SEL
data->cs4245_shadow[CS4245_SIGNAL_SEL] =
data->cs4245_shadow[CS4245_SIGNAL_SEL] &= ~CS4245_A_OUT_SEL_MASK;
data->cs4245_shadow[CS4245_SIGNAL_SEL] |= CS4245_A_OUT_SEL_DAC;
return cs4245_write_spi(chip, CS4245_SIGNAL_SEL);