Services Listed With No Service Data

[Zackary Troop]

Hello!

I can identify services while scanning but the service_data field doesn't appear to be populated. Is this potentially a case where the platform is limiting functionality of the library? Appreciate any input on this.

I'm using a Mac M2, btleplug = "0.11".

...
    central.start_scan(ScanFilter::default()).await?;
    let mut events = central.events().await?;
    while let Some(event) = events.next().await {
        if let CentralEvent::DeviceDiscovered(id) = event {
            if let Ok(device) = central.peripheral(&id).await {
                let properties = device
                    .properties()
                    .await?
                    .unwrap_or(PeripheralProperties::default());

                if properties.services.len() > 0 {
                    println!("Services: {:?}", properties.services);
                    // Services: [b42e1c08-ade7-11e4-89d3-123b93f75cba]
                    println!("Service Data: {:?}", properties.service_data);
                    // No data.
                }
 ...

[Zackary Troop]

The services property contains the UUIDs of the services that the device advertises it supports. However, service_data refers to specific data associated with these services and may be advertised separately. Not all devices that advertise service UUIDs also advertise service data in their advertisement packets. A connection is required to get services and characteristics.