Hello, Does Bluez have a function hci_le_set_ext_scan_enable() similar to hci_le_set_scan_enable()? If not, is there a particular reason why not? hci_le_set_scan_enable(int dev_id, uint8_t enable, uint8_t filter_dup, int to); // LE Set Scan Enable -- Bluetooth Core Spec v5.2, Vol 4, Part E, Section 7.8.11 (page 2496) hci_send_cmd(device_handle, 0x08, 0x0C, 0x02, ¶m) hci_send_cmd(device_handle, OGF_LE_CTL, OCF_LE_SET_SCAN_ENABLE, LE_SET_SCAN_ENABLE_CP_SIZE, ¶m) hci_le_set_ext_scan_enable(...) // LE Set Extended Scan Enable -- Bluetooth Core Spec v5.2, Vol 4, Part E, Section 7.8.65 (page 2613) hci_send_cmd(device_handle, 0x08, 0x42, 0x06, ¶m); Thank you, Alex Vallo