ATH_LE_READ_4
nexttbtt = (ATH_LE_READ_4(in->in_tstamp.data + 4) << 22) |
(ATH_LE_READ_4(in->in_tstamp.data) >> 10);
val = ATH_LE_READ_4(mca + 0);
val = ATH_LE_READ_4(mca + 3);