general_ibstatus
return general_ibstatus(board, NULL, 0, 0, NULL);
temp_status = general_ibstatus(board, status_queue, 0, 0, desc);
*status = general_ibstatus(board, status_queue, clear_mask, set_mask, desc);
general_ibstatus(board, status_queue, *status & clear_mask, set_mask, NULL);
int general_ibstatus(struct gpib_board *board, const struct gpib_status_queue *device,