il3945_tfd
il->hw_params.tfd_size = sizeof(struct il3945_tfd);
struct il3945_tfd *tfd, *tfd_tmp;
tfd_tmp = (struct il3945_tfd *)txq->tfds;
struct il3945_tfd *tfd_tmp = (struct il3945_tfd *)txq->tfds;
struct il3945_tfd *tfd = &tfd_tmp[idx];