Man page 8 : hciconfig

hciconfig - configure Bluetooth devices

hciconfig

-h

hciconfig [  -a  ]

hciconfig [  -a  ] [  command [  "command parameters"  ] ]

hciconfig is used to configure Bluetooth devices. hciXis the name of a Bluetooth device installed in the system. If hciXis not given,

hciconfig prints name and basic information about all the Bluetooth devices installed in the system. If hciXis given but no command is given, it prints basic information on device hciXonly. Basic information is interface type, BD address, ACL MTU, SCO MTU, flags (up, init, running, raw, page scan enabled, inquiry scan enabled, inquiry, authentication enabled, encryption enabled).

-h, --help

    Gives a list of possible commands.

-a, --all

    Other than the basic info, print features, packet type, link policy, link mode, name, class, version.

up

    Open and initialize HCI device.

down

    Close HCI device.

reset

    Reset HCI device.

rstat

    Reset statistic counters.

auth

    Enable authentication (sets device to security mode 3).

noauth

    Disable authentication.

encrypt

    Enable encryption (sets device to security mode 3).

noencrypt

    Disable encryption.

secmgr

    Enable security manager (current kernel support is limited).

nosecmgr

    Disable security manager.

piscan

    Enable page and inquiry scan.

noscan

    Disable page and inquiry scan.

iscan

    Enable inquiry scan, disable page scan.

pscan

    Enable page scan, disable inquiry scan.

• ptype [type]
      With no type, displays the current packet types. Otherwise, all the packet types specified by typeare set. typeis a comma-separated list of packet types, where the possible packet types are

R DM1 ,

R DM3 ,

R DM5 ,

R DH1 ,

R DH3 ,

R DH5 ,

R HV1 ,

R HV2 ,

R HV3 .

• name [name]
      With no name , prints local name. Otherwise, sets local name to name .
• class [class]
      With no class , prints class of device. Otherwise, sets class of device to class . .I class is a 24-bit hex number describing the class of device, as specified in section 1.2 of the Bluetooth Assigned Numers document.
• voice [voice]
      With no voice , prints voice setting. Otherwise, sets voice setting to voice . voiceis a 16-bit hex number describing the voice setting.
• iac [iac]
      With no iac , prints the current IAC setting. Otherwise, sets the IAC to iac .
• inqtpl [level]
      With no level , prints out the current inquiry transmit power level. Otherwise, sets inquiry transmit power level to level .
• inqmode [mode]
      With no mode , prints out the current inquiry mode. Otherwise, sets inquiry mode to mode .
• inqdata [data]
      With no name , prints out the current inquiry data. Otherwise, sets inquiry data to data .
• inqtype [type]
      With no type , prints out the current inquiry scan type. Otherwise, sets inquiry scan type to type .
• inqparams [win:int]
      With no win : int , prints inquiry scan window and interval. Otherwise, sets inquiry scan window to winslots and inquiry scan interval to intslots.
• pageparms [win:int]
      With no win : int , prints page scan window and interval. Otherwise, sets page scan window to winslots and page scan interval to intslots.
• pageto [to]
      With no to , prints page timeout. Otherwise, sets page timeout to .I to slots.
• afhmode [mode]
      With no mode , prints out the current AFH mode. Otherwise, sets AFH mode to mode .
• sspmode [mode]
      With no mode , prints out the current Simple Pairing mode. Otherwise, sets Simple Pairing mode to mode .
• aclmtu mtu:pkt
      Sets ACL MTU to to mtubytes and ACL buffer size to pktpackets.
• scomtu mtu:pkt
      Sets SCO MTU to mtubytes and SCO buffer size to pktpackets.
• putkey <bdaddr>
      This command stores the link key for bdaddron the device.
• delkey <bdaddr>
      This command deletes the stored link key for bdaddrfrom the device.
• oobdata
      Display local OOB data.
• commands
      Display supported commands.
• features
      Display device features.
• version
      Display version information.
• revision
      Display revision information.
• lm [mode]
      With no mode, prints link mode.

MASTER or

SLAVE mean, respectively, to ask to become master or to remain slave when a connection request comes in. The additional keyword

ACCEPT means that baseband connections will be accepted even if there are no listening AF_BLUETOOTHsockets. modeis

NONE or a comma-separated list of keywords, where possible keywords are

MASTER and

ACCEPT

NONE sets link policy to the default behaviour of remaining slave and not accepting baseband connections when there are no listening AF_BLUETOOTHsockets. If

MASTER is present, the device will ask to become master if a connection request comes in. If

ACCEPT is present, the device will accept baseband connections even when there are no listening AF_BLUETOOTHsockets.

Written by Maxim Krasnyansky <> and Marcel Holtmann <>

man page by Fabrizio Gennari <>