tg_get_frame_count_params
struct timing_generator *tg = params->tg_get_frame_count_params.tg;
unsigned int *frame_count = params->tg_get_frame_count_params.frame_count;
seq_state->steps[*seq_state->num_steps].params.tg_get_frame_count_params.tg = tg;
seq_state->steps[*seq_state->num_steps].params.tg_get_frame_count_params.frame_count = frame_count;
struct tg_get_frame_count_params tg_get_frame_count_params;