Add bluez support for qt5

modjo756 commented 8 years ago

Bluetooth work on yocto but to use it with qt, we need to add bluez 5 before the build of qt. Looking to add this bluez5 on neo.

graugans commented 8 years ago

This is something waiting on the TODO list :) I wrote this howto on bluez5 a year ago I am not sure if this is still valid.

modjo756 commented 8 years ago

Hi graugans, yes i tried to add this :

MACHINE_FEATURES_append = " \
 lvds7 \
 bluetooth \
 bluez5 \
"
IMAGE_INSTALL_append = "\
    htop \
    nano \
    cpufrequtils \
    ${QT5_FULL} \
    bluez5 \
    bluez5-testtools \
    bluez5-noinst-tools \
    "

it build : Currently 1 running tasks (1053 of 1060): 0: bluez5-5.33-r0 do_compile (pid 9434)

i also find this recipe : bluez5-qt but i don't know if it realy necessary ...

when i launch a qt exemple (scanner bluetooth) i have this warning : "Cannot find a running Bluez. Please check the Bluez installation."

Perhaps i need to rebuild the image from scratch (clean qt build ...) !

modjo756 commented 8 years ago

It seems to work (i can discover device with Qt), but i need to launch manually bluetoothd in /usr/lib/bluez5. Do you have an idea how to configure yocto to launch it at startup ? I need to make more test (bluetoothLE ...) to check if all work fine.

graugans commented 8 years ago

I have to check about bluetoothd maybe systemd image is expected.. related to BLE I did some BLE test last year It was on the ODROID-C1 but this shouldn't have changed much

modjo756 commented 8 years ago

Good news, bluetooth LE seems to work with Qt --> test with heart rate example and my geonaute heart belt, works fine ! Now need to launch bluetoothd at startup :-)

graugans commented 8 years ago

Sorry for the delay, but the weather is far too beautiful to sit in the basement :)

The bluetooth daemon is disabled by default, when reading the init script things get clear

# FIXME: any of the sourced files may fail if/with syntax errors
test -f /etc/default/bluetooth && . /etc/default/bluetooth
test -f /etc/default/rcS && . /etc/default/rcS

set -e

case $1 in
  start)
        echo "Starting $DESC"

        if test "$BLUETOOTH_ENABLED" = 0; then
                echo "disabled. see /etc/default/bluetooth"
                exit 0
        fi

        start-stop-daemon --start --background $SSD_OPTIONS
        echo "${DAEMON##*/}"

  ;;

When you provide a file /etc/default/bluetooth with the following content:

BLUETOOTH_ENABLED=1

bluetoothd should fire up during start-up

modjo756 commented 8 years ago

Thanks, i have create the file /etc/default/bluetooth with BLUETOOTH_ENABLED=1 but nothing change at startup. Do i need to create the script you talk above in rc.local or another place ?

graugans commented 8 years ago

Looks like there is another bug in the init file the entry

DAEMON=/usr/lib/bluez5/bluetooth/bluetoothd

is invalid. The right one is:

DAEMON=/usr/libexec/bluetooth/bluetoothd

modjo756 commented 8 years ago

Thanks, but can you tell me where is locate the init file please ?

graugans commented 8 years ago

Sure, /etc/init.d/bluetoothd

modjo756 commented 8 years ago

Thanks, i didn't have this file in my sdcard, i suppose i need to create it ? after that do i need to export (or register ...) it to enable the service at startup ? Otherwise, i just saw that bluez is already install in master image (not tested jethro), it's not necessary to add bluez to local.conf ...

graugans commented 8 years ago

I did exactly what I described here this provides the bluez5 stuff. I've submitted a patch to oe-core for review which fixes the init script issue.

graugans commented 8 years ago

My patch is applied upstream. So everything should work as intended.

modjo756 commented 8 years ago

Ok, i launch a new build with krogoth branch, but to apply your patch i merge poky to master branch.

graugans commented 8 years ago

I can add the fix for meta-udoo and krogoth. Maybe I can try in parallel to bring it in krogoth branch of openembedded aswell. As a next patch I think we should push the qtserialbus patch to meta-qt5. I am still in the progress to fine tune the krogoth branch of meta-udoo.

modjo756 commented 8 years ago

bitbake bluez5 with udoo krogoth and master poky works fine. Now i have launch udoo-image-qt5 build. I let you know. Yes it would be a good thing to add a patch for qtserialbus to meta-qt5 !

modjo756 commented 8 years ago

Build with krogoth ok, just somes errors with md5 checksum see here. Tomorrow i will test bluetooth ...

modjo756 commented 8 years ago

All work fine with krogoth. Bluetooth is started at boot and work with Qt. Arduino, CAN, uart6 (with patch) works all ! Good work :+1:

graugans / meta-udoo

Add bluez support for qt5 #13