mask_id2 13 include/sound/ac97/codec.h #define AC97_DRIVER_ID(vendor_id1, vendor_id2, mask_id1, mask_id2, _data) \ mask_id2 15 include/sound/ac97/codec.h .mask = (((mask_id1) & 0xffff) << 16) | ((mask_id2) & 0xffff), \