AZX_SD_CTL_STRM_MASK
#define AZX_SD_CTL_STRM(s) (((s)->stream_tag << 20) & AZX_SD_CTL_STRM_MASK)
snd_hdac_stream_updatel(cl, SD_CTL, AZX_SD_CTL_STRM_MASK, AZX_SD_CTL_STRM(cl));