snd_ice1712_ds_read
tmp = snd_ice1712_ds_read(ice, substream->number * 2, ICE1712_DSC_CONTROL);
if (!(snd_ice1712_ds_read(ice, substream->number * 2, ICE1712_DSC_CONTROL) & 1))
ptr = snd_ice1712_ds_read(ice, substream->number * 2, addr) -