2015-09-21 20:23:42

by Steven Davies

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Subject: BLE: dbus doesn't show GATT characteristics

I'm having a problem using BLE through dbus where the GATT services
don't appear after a BLE device has been found during a scan. What is
available through dbus is a Device1 node with the correct address and a
Name property of the name which was sent in the advertising beacons -
however that's the only node available in the tree.

When running with the same BLE dongle (ID 0a5c:21e8 Broadcom Corp.
BCM20702A0 Bluetooth 4.0) and same BLE remote device (TI SensorTag 2
CC2650STK) on a different computer I can see all the GATT
characteristics in the dbus tree without any problems.

The computer with the problem is running on kernel 4.2.0 with bluez
5.34. gatttool works without a problem.

Where should I start looking to find out why this is happening? I am a
developer; if someone could point me in the direction to begin looking
I'll do some investigation.

Regards
Steven Davies