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Questions tagged [hci]

For questions about Host Controller Interface.

The Host Controller Interface, in Bluetooth protocols, allows the communication between the Host (e.g. computer) and the Controller (e.g. Bluetooth adapter).

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201 questions
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BlueZ which layer get reason of Bluetooth disconnection

I am using BlueZ stack for Bluetooth connection between Smart-phone(AG-Audio Gateway) and Embedded board(HF-Handsfree). On which layer of Bluez ( HCI, L2CAP, RFCOMM) we will get reason of Bluetooth disconnection. So we can differentiate following…
Hari
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Writing HCI command to USB BT Dongle

My small project is to write HCI commands to Bluetooth USB dongle and get response for HCI commands. I could print all endpoints address of my USB Bluetooth dongle as below (using libusb). According to specification of the Bluetooth system Host…
Sandy
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hcidump binary not found

I'm setting up the BlueZ protocol stack on a custom system using linux 3.3. I'm using buildroot to setup the filesystem, and specifically am using BlueZ-4.101. I'm attempting to use the hcidump utility to get some logs, but the binary has not been…
zeus_masta_funk
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l2ping Bluetooth connection maximum links

I have a question regarding the max concurrent connections using bluetooth dongles. My system is based on 10 Raspberry Pi-es 2 and what I am trying to accomplish is to make a bluetooth low energy connection between them for some research project. My…
Annihilator11
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Bluetooth A2DP and RFCOMM

I'm trying to make my own bluetooth speaker with some add-ons. My Sony android phone will act as source and a raspberry pi with an usb bluetooth dongle is being the sink. I already have my bluetooth dongle set up with the A2DP profile and a loopback…
R_Zee
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Bluetooth Low Energy : Passive Scan - but do not loop forever?

Referencing this post I have successfully managed to get a Linux Device (A Raspberry Pi Model A+) to switch my Bluetooth 4.0 USB dongle into the 'advertising' state: sudo hciconfig hci0 leadv 3 or sudo hciconfig hci0 leadv 0 I verified this using…
monojohnny
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Split TTY device based on packet type

I have a TTY device setup to monitor a serial port of a combined bluetooth/GPS chip. I'm using blueZ to implement the bluetooth stack and do everything bluetooth related. The data being sent across this port is all HCI packets, even the GPS data.…
zeus_masta_funk
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UI pattern for editing temporal tables

I'm writing a web interface to edit several values that change over time (for each employee, the changing attributes are role/division/workplace/type of contract/etc) and show the history of each change, and server-side validation. The user must be…
Marco Mariani
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HCI Bluetooth snoop log creates an empty log file

Whenever I enable the "HCI Bluetooth snoop log" in the developer options, all I get is an empty 16 bytes log file (btsnoop_hci.log). I'm sure Bluetooth is communicating because my app is working properly. I have Android 5.0.1 on a ZenFone 2 (without…
Sith
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Get accelerometer data from ti sensortag using Matlab and HCI-command

I'm trying to get sensor data from ti sensortag using matlab, my work is based on the work posted in github site : https://github.com/sid5291/SensorTag-Matlab I'm trying to get accelorometer data instead of temperature and humidity data (in the…
Mondher Ben
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Issue in Bluetooth pairing

We are testing Bluetooth in WEC2013 with a USB based dongle from generic vendor on iMx6 platform. We are using the default HCI Transport layer provided with WEC2013 BSP. BT is turned on and able to scan all the nearby devices. We have enabled…
Keshava GN
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Downloading photos on the client side every 10 seconds on an ajax enabled asp.net environment?

There is a web site page which is coded on asp.net with using c# and ajax is enabled too. I want a very fast loading web page; which is going to happen with the following architecture; 1- First all data is shown by the text boxes (There are 50 text…
Bilgin Kılıç
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HCI challenges of Web 2.0

What are the HCI challenges of Web 2.0?
Humphrey Bogart
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bluetooth pairing and connection from command line

I want to connect and pair to available nearby bluetooth devices from command line in linux. I have searched through internet, and found that we can pair through simple-agent, but it is not available in my device. following commands are available in…
Jagdish
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PiBeacons: iPhone find BLE UUID not iBeacon

i'm sorry for my english but i have a problem with PiBeacon. I have a Raspberry Pi and a Usb dongle Sitecom CN-524. I read and I follow this tutorial ( http://developer.radiusnetworks.com/2013/10/09/how-to-make-an-ibeacon-out-of-a-raspberry-pi.html…
user3423436
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