OP_BITS
u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
ret = add_bits(p, t[4], OP_BITS);
ret = add_bits(p, OP_REPEAT, OP_BITS);
ret = add_bits(p, OP_SHORT_DATA, OP_BITS);
int ret = add_bits(p, OP_ZEROS, OP_BITS);
int ret = add_bits(p, OP_END, OP_BITS);
ret = next_bits(&p, &op, OP_BITS);