Apple

Hi Jason,

Why does iOS not expose that service to CB? Are there other services that are hidden as well? Perhaps this is documented somewhere and I just missed it?

We’d like to be able to read the name of the device that way, and update the name through a write to that characteristic.

Thanks,

Alex

From: Jason Conn [mailto:email@hidden]
Sent: Tuesday, February 09, 2016 3:27 PM
To: Alex.SneedMiller <email@hidden>
Cc: email@hidden
Subject: Re: Unable to Discover Generic Access Service (0x1800)

Hi Alex,

iOS does not expose the GAP service directly to CoreBluetooth clients - what, specifically, do you want to do with it?

On Feb 9, 2016, at 1:14 PM, Alex.SneedMiller <email@hidden> wrote:

Hello,

I have an embedded device that exposes the Generic Access Service (UUID=0x1800 https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.generic_access.xml), and the device_name Characteristic (UUID=0x2A00 https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.gap.device_name.xml).

When we discover all of the services (by passing ‘nil’ as the argument to `func discoverServices(_ serviceUUIDs: [CBUUID]?)`) and print them out we see all of the Services except for 0x1800. When I use a BLE dongle on my laptop or an Android phone I am able to discover that Service and the Characteristics under it. I have seen other apps also not show the Generic Access Service (0x1800). Is there a way to discover this Service (and the Characteristics under it) so that we may read and write to the Characteristics?

Thanks,

Alex

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