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.. SPDX-FileCopyrightText: 2021-2025 BlueALSA developers
.. SPDX-License-Identifier: MIT
======
hcitop
======
-------------------------------------
a simple dynamic view of HCI activity
-------------------------------------
:Date: July 2023
:Manual section: 1
:Manual group: General Commands Manual
:Version: $VERSION$
SYNOPSIS
========
**hcitop** [*OPTION*]...
DESCRIPTION
===========
**hcitop** provides a dynamic real-time view of activity statistics for each
HCI interface. The view is refreshed at regular intervals, and also on demand
by pressing a key. To quit the program press the 'q' key, or use Ctrl-C.
OPTIONS
=======
-h, --help
Output a usage message and exit.
-V, --version
Output the version number and exit.
-d SEC, --delay=SEC
Set the interval at which the statistics are refreshed. SEC is a number of
seconds and may include a decimal point or exponent.
COLUMNS
=======
HCI
The HCI name ("hci0", etc.).
BUS
The bus name ("UART", "USB", etc.).
ADDR
The Bluetooth device address.
FLAGS
Status flags of the HCI. See ``FLAGS`` below.
RX
Total amount of data received since the HCI was last brought up.
TX
Total amount of data transmitted since the HCI was last brought up.
RX/s
Average rate of reception during the last refresh interval.
TX/s
Average rate of transmission during the last refresh interval.
FLAGS
=====
An array of flag characters indicating the current status of the HCI. The flags
are shown in the following order. The indicated letter appears when that flag
is "TRUE", a blank is shown when the flag is "FALSE".
U
The interface is "Up".
N
The interface is initializing.
R
The interface is running.
P
Page scan is enabled.
I
Inquiry scan is enabled.
A
Authentication is enabled.
E
Encryption is enabled.
Q
The interface is currently inquiring (scanning) remote devices.
X
Raw mode is enabled.
SEE ALSO
========
``btmon(1)``, ``hciconfig(1)``, ``hcitool(1)``
Project web site
https://github.com/arkq/bluez-alsa