Access iOS GATT Services over BR/EDR
Access iOS GATT Services over BR/EDR
- Subject: Access iOS GATT Services over BR/EDR
- From: Matthias Ringwald via Bluetooth-dev <email@hidden>
- Date: Tue, 11 Apr 2023 16:22:01 +0200
Hi there
Is it possible to access iOS GATT Services, e.g. the Battery Service, via GATT
over an existing BR/EDR Connection?
As current iOS and macOS announce GATT over BR/EDR via an SDP record, I've
tried to connect to it via the announced PSM 0x1f, but I get an L2CAP
Connection refused – no resources available' (0x04)'.
I've tried both as Central without other profiles being connected, as well as
Peripheral, after iOS connected to our HFP HF profile?
Why? A customer of our stack wants to build some kind of HFP HF device and has
asked us if they can get a better battery status than the 5 levels from HFP.
As iOS provides it's battery level, it's possible to create an additional LE
connection to read the battery status, but it's would be way more elegant, and
requires less logic, to access the battery service via
the existing BR/EDR connection.
Thanks
Matthias
—
Dr. sc. Matthias Ringwald
CTO and Co-founder of BlueKitchen GmbH, Zurich
https://bluekitchen-gmbh.com <https://bluekitchen-gmbh.com/>
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