Hi,
Using linux kernel 4.2.8 or 4.3.4 I have been unable to connect to BLE devices using either gatttool or our app, which worked on an earlier kernel but had reliability issues so we have been updating to later kernel and rootfs.
hciconfig shows
hci0: Type: BR/EDR Bus: UART
BD Address: 78:A5:04:31:3C:4B ACL MTU: 1021:6 SCO MTU: 180:4
UP RUNNING
RX bytes:24625 acl:0 sco:0 events:733 errors:0
TX bytes:481 acl:0 sco:0 commands:43 errors:0
Hcitool lescan:-
LE Scan ...
DA:61:22:17:65:E8 (unknown)
DA:61:22:17:65:E8 (unknown)
C3:9B:9C:19:F8:49 (unknown)
C3:9B:9C:19:F8:49 (unknown)
The application scan also receives beacons, however when an attempt to connect is made either via the app or gatttool I always get connection refused (111).
systemctl | grep Bluetooth
sys-devices-virtual-bluetooth-hci0-rfkill0.device loaded active plugged /sys/devices/virtual/bluetooth/hci0/rfkill0
sys-devices-virtual-bluetooth-hci0.device loaded active plugged /sys/devices/virtual/bluetooth/hci0
sys-subsystem-bluetooth-devices-hci0.device loaded active plugged /sys/subsystem/bluetooth/devices/hci0
bluetooth.service loaded active running Bluetooth service
bluetooth.target loaded active active Bluetooth
bluetoothctl howver shows No default controller availalble.
One post suggested that bluez does not support BLE without a configuration change using btmgmt le on, but that fails
"Set Low Energy for hci0 failed with status 0x11 (Invalid Index)", presumably as bluetoothd has no controller.
Any pointers as to what I am missing (bluetooth newbie)
Thanks,
Stu
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