MHI_CH_STATE_TYPE_MAX
const char * const mhi_ch_state_type_str[MHI_CH_STATE_TYPE_MAX] = {
extern const char * const mhi_ch_state_type_str[MHI_CH_STATE_TYPE_MAX];
#define TO_CH_STATE_TYPE_STR(state) (((state) >= MHI_CH_STATE_TYPE_MAX) ? \