TW_S_STARTED
tw_dev->state[*request_id] = TW_S_STARTED;
tw_dev->state[*request_id] = TW_S_STARTED;
tw_dev->state[*request_id] = TW_S_STARTED;
#define TW_START_MASK (TW_S_STARTED | TW_S_POSTED | TW_S_PENDING | TW_S_COMPLETED)