FZA_PRH1_CRC_NORMAL
skb->data[1] |= FZA_PRH1_CRC_NORMAL;
skb->data[1] |= FZA_PRH1_CRC_NORMAL | FZA_PRH1_TKN_SEND_UNR;
#define FZA_PRH1_LLC (FZA_PRH1_CRC_NORMAL | FZA_PRH1_TKN_SEND_UNR)
#define FZA_PRH1_SMT (FZA_PRH1_CRC_NORMAL | FZA_PRH1_TKN_SEND_UNR)