Linux Commands Examples

A great documentation place for Linux commands


attach serial devices via UART HCI to BlueZ stack


hciattach [-b] [-n] [-p] [-t timeout] [-s speed] [-l] [-r] tty type|id speed flow bdaddr

add an example, a script, a trick and tips

: email address (won't be displayed)
: name

Step 2

Thanks for this example ! - It will be moderated and published shortly.

Feel free to post other examples
Oops ! There is a tiny cockup. A damn 404 cockup. Please contact the loosy team who maintains and develops this wonderful site by clicking in the mighty feedback button on the side of the page. Say what happened. Thanks!


no example yet ...

... Feel free to add your own example above to help other Linux-lovers !


Hciattach is used to attach a serial UART to the Bluetooth stack as HCI transport interface.



Send break.


Don’t detach from controlling terminal.


Print the PID when detaching.

-t timeout

Specify an initialization timeout. (Default is 5 seconds.)

-s speed

Specify an initial speed instead of the hardware default.


List all available configurations.


Set the HCI device into raw mode (the kernel and bluetoothd will ignore it).


This specifies the serial device to attach. A leading /dev can be omitted. Examples: /dev/ttyS1 ttyS2


The type or id of the Bluetooth device that is to be attached, i.e. vendor or other device specific identifier. Currently supported types are




Unspecified HCI_UART interface, no vendor specific options


Ericsson based modules


Digianswer based cards


Xircom PCMCIA cards: Credit Card Adapter and Real Port Adapter


CSR Casira serial adapter or BrainBoxes serial dongle (BL642)


BrainBoxes PCMCIA card (BL620)


Silicon Wave kits


Serial adapters using CSR chips with BCSP serial protocol


Atheros AR300x based serial Bluetooth device


Intel Bluetooth device

Supported IDs are (manufacturer id, product id)

0x0105, 0x080a

Xircom PCMCIA cards: Credit Card Adapter and Real Port Adapter

0x0160, 0x0002

BrainBoxes PCMCIA card (BL620)


The speed specifies the UART speed to use. Baudrates higher than 115.200bps require vendor specific initializations that are not implemented for all types of devices. In general the following speeds are supported:

9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600

Supported vendor devices are automatically initialised to their respective best settings.


If the keyword flow is appended to the list of options then hardware flow control is forced on the serial link ( CRTSCTS ). All above mentioned device types have flow set by default. To force no flow control use noflow instead.


Enables hardware specific power management feature. If sleep is appended to the list of options then this feature is enabled. To disable this feature use nosleep instead. All above mentioned device types have nosleep set by default.

Note: This option will only be valid for hardware which support hardware specific power management enable option from host.


The bdaddr specifies the Bluetooth Address to use. Some devices (like the STLC2500) do not store the Bluetooth address in hardware memory. Instead it must be uploaded during the initialization process. If this argument is specified, then the address will be used to initialize the device. Otherwise, a default address will be used.


Written by Maxim Krasnyansky <maxk[:at:]qualcomm[:dot:]com>

Manual page by Nils Faerber <nils[:at:]kernelconcepts[:dot:]de>

How can this site be more helpful to YOU ?

give  feedback