Hi Barry, On Fri, Mar 8, 2019 at 11:20 PM Barry Byford <31baz66@xxxxxxxxx> wrote: > > I have tried the same experiment on a Raspberry Pi. > > $ uname -a > Linux raspberrypi 4.14.79-v7+ #1159 SMP Sun Nov 4 17:50:20 GMT 2018 > armv7l GNU/Linux > > I ran the peripheral code I have and it worked fine on the Raspberry > Pi. I then rebuilt BlueZ 5.43 and reinstalled it and I see the same > issue with getting notificatins. > That is, reading of the characteristic in the Nordic nRF app on my > phone works. However, when I activate notifications I can see the > status change on the peripheral and the notifications show up on the > DBus. The notifications just don't show up in btmon or on my phone. Perhaps is being blocked somehow, you got the StartNotification I suppose? Please make sure the object path matches otherwise it won't work, you may also check how bluetoothctl does handle notifications since that has been working for a while. > Does anyone have any suggestions of how I can debug this? The usual btmon traces and bluetoothd debug logs are normally a good idea to share since there could be some bug, though Ive been testing this regularly with bluetoothctl and that has been stable for a while, at least on master that is. > Thanks, > Barry > > > On Wed, 6 Mar 2019 at 22:37, Barry Byford <31baz66@xxxxxxxxx> wrote: > > > > Hello, > > > > I have a system that comes with BlueZ 5.43 installed on a single board > > computer (SBC). I have downloaded, built and installed various newer > > versions of BlueZ but I am having problems getting them working > > correctly. > > > > I have a peripheral (very similar to the gatt server example in the > > test directory) with one characteristic. My example was working before > > upgrading. However after upgrading, when I turn on notification for > > the characteristic it is not showing on the phone. > > > > I do see the notification turn up in dbus-monitor but not in btmon. > > > > signal time=1551910979.743011 sender=:1.38 -> destination=(null > > destination) serial=339 path=/ukBaz/bluezero/service0001/char0001; > > interface=org.freedesktop.DBus.Properties; member=PropertiesChanged > > string "org.bluez.GattCharacteristic1" > > array [ > > dict entry( > > string "Value" > > variant array of bytes [ > > 78 14 > > ] > > ) > > ] > > array [ > > ] > > > > I have tried going back to version 5.43 again but now that is not > > working either. > > > > The configure I ran was: > > ./configure --prefix=/usr \ > > --mandir=/usr/share/man \ > > --sysconfdir=/etc \ > > --localstatedir=/var \ > > --enable-experimental \ > > --enable-maintainer-mode > > > > > > To get configure to work without error I needed to install the following: > > sudo apt install glib2. > > sudo apt install libdbus-1-dev libudev-dev libical-dev libreadline-dev > > > > I have tried various variations on this and done a lot of searching > > but don't seem to find an answer. > > Is anyone else seeing this issue? > > Anyone have any suggestions as what I could try? > > > > Thanks in advance, > > Barry -- Luiz Augusto von Dentz
