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how to change BLE advertising packet

Hi
I'm trying to see if i can change BLE advertising packet by invoking following function

```
int bt_adapter_le_add_advertising_manufacturer_data(
  bt_advertiser_h advertiser,
  bt_adapter_le_packet_type_e pkt_type,
  int manufacturer_id,
  const char *manufacturer_data,
  int manufacturer_data_len
);
```

I called this function like following
```
bt_adapter_le_add_advertising_manufacturer_data(
  bt_advertiser_h advertiser,
  'BT_ADAPTER_LE_PACKET_ADVERTISING', # pkt_type
  '0x7611', # manufacturer_id
  '{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}', # manufacturer_data
  int manufacturer_data_len
);
```

after calling this function, the data i scanned was like this '0x02011E0319010013FF11760102030405060708090A0B0C0D0E0F0103084761' and i splited it into 4 pieces like '0x02011E0319010013FF', '1176', '0102030405060708090A0B0C0D0E0F', '0103084761'.

I guess the second one is `manufacturer_id` that i have put, and the third one is the `manufacturer_data`.

so now I'm wondering if i could change the first one and the fourth one.