Questions tagged [dbus]

For questions about D-Bus, an inter-process communication mechanism used by many Linux distributions. Use this tag if you are configuring, using or trying to resolve an issue with D-Bus on a Raspberry Pi.

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Increase I2C-Speed with Hyperpixel 4.0 mounted

i hava a Hyperpixel 4.0 mounted on my Raspberry Pi 3A+. Because of the Pin overlay for the Hyperpixel 4.0, the I2C bus is not Standard and is created on the Physical Pins 19 and 23 on my Raspberry. (I ...
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0 answers
48 views

Send USSD command to mobile phone connected via bluez to raspberrypi 4

I just start working with ofono and when I want to send USSD command. when I use initiate-ussd <modem> I get this error: Traceback (most recent call last): File "/home/pi/workspace/libs/...
1 vote
1 answer
269 views

confusing wpa_supplicant processes while trying to use dbus api

I am trying to write some code that is to use dbus api to access wpa_supplicant. My understanding from reading various posts that wpa_supplicant must be started with -u flag to fully expose it's apis ...
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0 answers
343 views

Failed to get D-Bus connection: Unknown error -1

Well I ran into a major network failure when I try to get two PIs talking to each other directly through their Ethernet ports. They use to connect to each other and communicate, but for some odd ...
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0 votes
0 answers
34 views

error from dbus, no wifi after reboot

I corrupted the ssd, so until I get this error again (hopefully I won't, but I probably will because it already happened 2 times) I can't do anything. I got a messagebox with this error when booting: ...
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1 answer
48 views

pydbus throwing error in raspbian lite

I have successfully installed and used pydbus to communicate and control a few Bluetooth LE devices from a Raspberry Pi (full version). When I tried to do the same with Raspbian lite, I got: object ...
1 vote
1 answer
85 views

How Bluedroid can be worked in raspberry pi4B instead of BlueZ

Want to port the bluedroid to raspberry pi4B instead of BlueZ. Because of some causes, only want to use the pi's rootfs, don't use the dbus. how to work it? first of all, as we know,different ...
1 vote
0 answers
247 views

Using PyDBUS to read BLE battery service

I tried to read battery service (0x180F) using pydbus and also via term but unable to find, setNotify or read the value. I tried to register-service under Menu GATT in Terminal running Bluetoothctl ...
1 vote
2 answers
2k views

BlueZ BTGATT-client.py WriteValue

I had a successful attempts with BlueZ-5.50 > test > example-gatt-client.py with ESP32 set as HeartRate Sensor Server.I am able to read from ESP32 which i modified to suit the BlueZ example. ...
1 vote
1 answer
177 views

dbus and qdbus not working suddenly

I am using dbus and qdbus to control my phone from a pi using Bluetooth to pause play etc. songs and all of a sudden dbus and qdbus dont work anymore All other functions work i can head music from he ...
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0 votes
1 answer
343 views

network manager dbus interface calls for wireless doesnt work on raspbian

I have the following code to retrieve access points information using NetworkManager dbus api: //--------------------------------------------------------------------------------- QDBusInterface ...
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1 vote
0 answers
30 views

What is this prompt saying about bluetooth?

I tried to fix some problems with the bluetooth and uninstall pi-bluetooth. Also installed it .But the problems are bigger now. What is this prompt saying.
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2 votes
1 answer
766 views

Rpi Zero W - How to automatically accept bluetooth pairing and log mac and info request?

I am using Raspbian Stretch 9.4 on a Zero W. The goal is to deploy it headless for long periods of time where it will broadcast a specified bluetooth signal. When someone tries to connect to it, it ...
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3 votes
1 answer
3k views

Removed dbus from raspbian

I have accidentally removed my dbus file on my Raspberry Pi 3 Raspbian OS ( full Operating system version) (not raspbian lite). I used the command apt-get remove dbus to do this uninstall of dbus. ...