---
name: "bccmd"
section: "8"
platform: "linux"
package: "bluez"
version: "4.99-2"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/bccmd/8"
---

# bccmd(8)

Utility for the CSR BCCMD interface

## NAME

bccmd - Utility for the CSR BCCMD interface

## SYNOPSIS

**bccmd**\
 **bccmd \[-t \<transport\>\] \[-d \<device\>\] \<command\> \[\<args\>\]**\
 **bccmd \[-h --help\]**\

## DESCRIPTION

**bccmd** issues BlueCore commands to **Cambridge Silicon Radio** devices. If run without the \<command\> argument, a short help page will be displayed.

## OPTIONS

- **-t \<transport\>**

  Specify the communication transport. Valid options are:

  - **HCI**

    Local device with Host Controller Interface (default).

  - **USB**

    Direct USB connection.

  - **BCSP**

    Blue Core Serial Protocol.

  - **H4**

    H4 serial protocol.

  - **3WIRE**

    3WIRE protocol (not implemented).

##

- **-d \<dev\>**

  Specify a particular device to operate on. If not specified, default is the first available HCI device or /dev/ttyS0 for serial transports.

## COMMANDS

- **builddef**

  Get build definitions

- **keylen \<handle\>**

  Get current crypt key length

- **clock**

  Get local Bluetooth clock

- **rand**

  Get random number

- **chiprev**

  Get chip revision

- **buildname**

  Get the full build name

- **panicarg**

  Get panic code argument

- **faultarg**

  Get fault code argument

- **coldreset**

  Perform cold reset

- **warmreset**

  Perform warm reset

- **disabletx**

  Disable TX on the device

- **enabletx**

  Enable TX on the device

- **singlechan \<channel\>**

  Lock radio on specific channel

- **hoppingon**

  Revert to channel hopping

- **rttxdata1 \<decimal freq MHz\> \<level\>**

  TXData1 radio test

- **radiotest \<decimal freq MHz\> \<level\> \<id\>**

  Run radio tests, tests 4, 6 and 7 are transmit tests

- **memtypes**

  Get memory types

- **psget \[-r\] \[-s \<stores\>\] \<key\>**

  Get value for PS key. -r sends a warm reset afterwards

- **psset \[-r\] \[-s \<stores\>\] \<key\> \<value\>**

  Set value for PS key. -r sends a warm reset afterwards

- **psclr \[-r\] \[-s \<stores\>\] \<key\>**

  Clear value for PS key. -r sends a warm reset afterwards

- **pslist \[-r\] \[-s \<stores\>\]**

  List all PS keys. -r sends a warm reset afterwards

- **psread \[-r\] \[-s \<stores\>\]**

  Read all PS keys. -r sends a warm reset afterwards

- **psload \[-r\] \[-s \<stores\>\] \<file\>**

  Load all PS keys from PSR file. -r sends a warm reset afterwards

- **pscheck \[-r\] \[-s \<stores\>\] \<file\>**

  Check syntax of PSR file. -r sends a warm reset afterwards

## KEYS

bdaddr country devclass keymin keymax features commands version remver hciextn mapsco baudrate hostintf anafreq anaftrim usbvid usbpid dfupid bootmode

## AUTHORS

Written by Marcel Holtmann \<marcel@holtmann.org\>, man page by Adam Laurie \<adam@algroup.co.uk\>