hci_write_scan_enable_sync
return hci_write_scan_enable_sync(hdev, scan);
err = hci_write_scan_enable_sync(hdev, 0x00);
hci_write_scan_enable_sync(hdev, scan);
hci_write_scan_enable_sync(hdev, scan);
hci_write_scan_enable_sync(hdev, SCAN_DISABLED);