DEV_ST_TRANSITION_MAX
const char * const dev_state_tran_str[DEV_ST_TRANSITION_MAX] = {
extern const char * const dev_state_tran_str[DEV_ST_TRANSITION_MAX];
#define TO_DEV_STATE_TRANS_STR(state) (((state) >= DEV_ST_TRANSITION_MAX) ? \
enum dev_st_transition st = DEV_ST_TRANSITION_MAX;
if (st != DEV_ST_TRANSITION_MAX)