bwn_set_txhdr_phyctl1
txhdr->phyctl_1rts = htole16(bwn_set_txhdr_phyctl1(mac, rts_rate));
txhdr->phyctl_1rtsfb = htole16(bwn_set_txhdr_phyctl1(mac, rts_rate_fb));
txhdr->phyctl_1 = htole16(bwn_set_txhdr_phyctl1(mac, rate));
txhdr->phyctl_1fb = htole16(bwn_set_txhdr_phyctl1(mac, rate_fb));