undefined reference to hci_le_read_suggested_default_data_length
how to slove this undefined reference error: uint16_t SuggestedMaxTxOctets = 0xFB; uint16_t SuggestedMaxTxTime = 0X148; hci_le_read_suggested_default_data_length(&SuggestedMaxTxOctets, &SuggestedMaxTxTime);i am using bluenrg-2