What is HCL in Bluetooth?
What is HCL in Bluetooth?
The Bluetooth Host-Controller Interface (HCI) specifies all interactions between a host and a Bluetooth radio controller. Bluetooth specifications allow vendor-defined HCI commands and events to enable non-standardized interaction between hosts and controllers.
What is the HCI for Android?
The Host Controller Interface (HCI) is used for interacting with a Bluetooth controller. This document provides a list of Bluetooth (BT) and Bluetooth Low Energy (BLE) HCI requirements.
Is HCI a protocol?
The following sections summarize the HCI protocol, the specification defined commands and events used by BLE, and a detailed description of the vendor specific commands and events defined by Texas Instruments Inc.
What does HCI snoop log do?
A Bluetooth HCI snoop log is a type of log file that stores all of the transmissions sent through Bluetooth on your Android device. If you can access a Bluetooth HCI snoop log, it means you’ve downloaded an app that logs data on your phone through Bluetooth communication and transmission.
How do I use snoop Bluetooth log?
To log all data, the user needs to enable Bluetooth HCI snoop by doing the following:
- Enable Developer options on the device.
- In the Developer options menu, activate the Enable Bluetooth HCI snoop log toggle.
- Restart Bluetooth for logging to take effect.
How do I read HCI logs?
Retrieving the HCI Log
- On the Android device go to Settings.
- Select Developer options.
- Click to enable Bluetooth HCI snoop logging.
- Return to the Settings screen and select Developer options.
- In the Developer options screen select Enable Bluetooth HCI snoop log. The log file is now enabled.
Where is the HCI log on Android?
These logs capture the Host Controller Interface (HCI) packets. For most Android devices, the logs are stored in data/misc/bluetooth/logs .
What are different types of HCI transport?
The HCI exists across 3 sections, the Host – Transport Layer – Host Controller….4.4 Bluetooth-defined Host Controller Transport Layers
- 1 UART Transport Layer.
- 2 RS232 Transport Layer.
- 3 USB Transport Layer.
What is HCI H4?
H4 is the simplest of the Bluetooth standard host transports. It is intended to operate over an RS232 link with no parity. Hardware flow control is required. HCI commands are transmitted directly with the addition of a packet indicator to indicate: ƒCommand Event.
What is secondary display in Android?
This display refers to a secondary screen which is somehow (Bluetooth, wired connections, RFC) connected to your Android device. By Default, this screen is not user interactive and hence it is called as Display and not Screen.
What does Bluetooth HCI snoop log do?
When the Bluetooth HCI snoop log is enabled, the Android framework will capture Bluetooth packets sent and received between central and peripheral devices and store them as part of a bug report.