s6_to_s8
t->cck[0] = t->cck[1] = s6_to_s8(val);
t->cck[2] = t->cck[3] = s6_to_s8(val >> 8);
t->ofdm[0] = t->ofdm[1] = s6_to_s8(val);
t->ofdm[2] = t->ofdm[3] = s6_to_s8(val >> 8);
t->ofdm[4] = t->ofdm[5] = s6_to_s8(val);
t->ofdm[6] = t->ofdm[7] = s6_to_s8(val >> 8);
t->ht[0] = t->ht[1] = s6_to_s8(val);
t->ht[2] = t->ht[3] = s6_to_s8(val >> 8);
t->ht[4] = t->ht[5] = s6_to_s8(val);
t->ht[6] = t->ht[7] = s6_to_s8(val >> 8);
t->vht[0] = s6_to_s8(val);
t->vht[1] = s6_to_s8(val >> 8);