tb_drom_header
struct tb_drom_header *header = (void *) sw->drom;
if (len < 0 || len < sizeof(struct tb_drom_header))
*size = ((struct tb_drom_header *)sw->drom)->data_len +
if (*size < sizeof(struct tb_drom_header)) {
const struct tb_drom_header *header =
(const struct tb_drom_header *)sw->drom;
const struct tb_drom_header *header =
(const struct tb_drom_header *)sw->drom;
const struct tb_drom_header *header = (const void *)sw->drom;