Provided by: bluez-utils_2.24-0ubuntu6_i386 bug


       /etc/bluetooth/hcid.conf  -  Configuration  file for the hcid Bluetooth
       HCI daemon


       /etc/bluetooth/hcid.conf  contains  all  the  options  needed  by   the
       Bluetooth Host Controller Interface daemon.

       It  consists of sections and parameters. A section begins with the name
       of the section followed  by  optional  specifiers  and  the  parameters
       inside curly brackets. Sections contain parameters of the form:

       name value1, value2 ... ;

       Any  character  after  a hash (’#’) character is ignored until newline.
       Whitespace is also ignored.

       The valid section names for hcid.conf are, at the moment:

              contains generic options for hcid and the pairing policy.

       device contains lower-level options for the hci  devices  connected  to
              the computer.


       The following parameters may be present in an option section:

       autoinit  yes|no

              Automatically initialize newly connected devices. The default is

       pairing  none|multi|once

              none means that pairing is disabled. multi allows  pairing  with
              already  paired  devices.  once  allows  pairing once and denies
              successive attempts. The default hcid configuration  is  shipped
              with multi enabled

       pin_helper "file"

              The   path  to  the  PIN  helper  application.  The  default  is
              "/bin/bluepin".  The following output is expected from  the  PIN


              Or, when no PIN is available:



              Declaring  this  parameter  enables the D-BUS message bus system
              for PIN requests.

       security  none|auto|user

              none means the security manager is  disabled.  auto  uses  local
              PIN,   by   default   from   /etc/bluetooth/pin,   for  incoming
              connections. user always asks the user for a PIN.


       Parameters within a device  section  with  no  specifier,  the  default
       device  section,  will  be  applied  to all devices and device sections
       where these are unspecified. The following optional  device  specifiers
       are supported:


              Parameters  specified within this section will be applied to the
              device with this device bluetooth address. All other  parameters
              are applied from the default section.

       hcin    Parameters specified within this section will be applied to the
              device with this device interface, unless that device is matched
              by  a  device  address section. All other parameters are applied
              from the default section.

       Note: Most of the options supported in the device section are described
       to  some extent in the bluetooth specification version 1.2 Vol2, Part E
       section 6. Please refer to it for technical details.

       The following parameters may be present in a device section:

       name  "name"

              The device name. %d inserts the device id. %h inserts  the  host

       auth  enable|disable
              Enables  or  disables  authentication  between  local and remote
              devices when they connect.

              Authentication is done following a challenge-response  mechanism
              described  in  the  Bluetooth  Specification 1.2 volume 2 part C
              section 4.2, and uses the link key generated during  pairing  as
              the shared secret.

              Activating  this  option  sets  the  local device into Bluetooth
              security mode 3.

       encrypt  enable|disable
              Enable or disable link encryption. Should be set  to  enable  in
              most   cases,  unless  one  of  the  devices  does  not  support
              encryption for some reason.

              Encryption can only occur on  authenticated  connections,  as  a
              shared  secret  key  is  necessary  for  encryption to work. The
              detailed encryption mechanism  is  described  in  the  bluetooth
              specification as mentioned above.

       class  0xSSDDdd (three bytes)

              The  Bluetooth  Device  Class  is  described  in  the  Bluetooth
              Specification  section  1.2  ("Assigned  Numbers   -   Bluetooth

              The  default  shipped  with hcid is 0x000100 which simply stands
              for "Computer".

              The Bluetooth device class is a high-level  description  of  the
              bluetooth  device,  composed  of three bytes: the "Major Service
              Class" (byte "SS" above), the "Major Device  Class"  (byte  "DD"
              above)  and  the  "Minor  Device Class" (byte "dd" above). These
              classes describe the high-level capabilities of the device, such
              as  "Networking  Device",  "Computer",  etc. This information is
              often used by clients who are looking  for  a  certain  type  of
              service around them.

              Where  it  becomes  tricky is that another type of mechanism for
              service  discovery  exists:  "SDP",  as  in  "Service  Discovery

              In  practice,  most Bluetooth clients scan their surroundings in
              two successive steps: they first look for all bluetooth  devices
              around them and find out their "class". You can do this on Linux
              with the hcitool scan command. Then, they use SDP  in  order  to
              check  if  a  device in a given class offers the type of service
              that they want.

              This means that the hcid.conf "class" parameter needs to be  set
              up properly if particular services are running on the host, such
              as "PAN", or "OBEX Obect Push", etc: in general a device looking
              for  a service such as "Network Access Point" will only scan for
              this service on devices containing "Networking" in  their  major
              service class.

              Major service class byte allocation (from LSB to MSB):

              Bit 1:    Positioning (Location identification)

              Bit 2:  Networking (LAN, Ad hoc, ...)

              Bit 3:  Rendering (Printing, Speaker, ...)

              Bit 4:  Capturing (Scanner, Microphone, ...)

              Bit 5:  Object Transfer (v-Inbox, v-Folder, ...)

              Bit 6:  Audio (Speaker, Microphone, Headset service, ...)

              Bit  7:   Telephony (Cordless telephony, Modem, Headset service,

              Bit 8:  Information (WEB-server, WAP-server, ...)

              Example: class 0x02hhhh : the device offers networking service

              Major device class allocation:

              0x00: Miscellaneous

              0x01: Computer (desktop,notebook, PDA, organizers, .... )

              0x02: Phone (cellular, cordless, payphone, modem, ...)

              0x03: LAN /Network Access point

              0x04:  Audio/Video   (headset,speaker,stereo,   video   display,

              0x05: Peripheral (mouse, joystick, keyboards, ..... )

              0x06: Imaging (printing, scanner, camera, display, ...)

              Other   values   are   not   defined  (refer  to  the  Bluetooth
              specification for more details

              Minor device class allocation: the meaning of this byte  depends
              on  the  major  class  allocation, please refer to the Bluetooth
              specifications for more details).

              Example: if PAND runs on your server, you  need  to  set  up  at
              least   class   0x020100,   which  stands  for  "Service  Class:
              Networking" and "Device Class: Computer, Uncategorized".

       iscan  enable|disable

       pscan  enable|disable

              Bluetooth devices discover and connect to each other through the
              use  of  two  special  Bluetooth  channels, the Inquiry and Page
              channels (described in the Bluetooth  Spec  Volume  1,  Part  A,
              Section  3.3.3,  page 35). These two options enable the channels
              on the bluetooth device.

              iscan enable:  makes  the  bluetooth  device  "discoverable"  by
              enabling  it  to  answer "inquiries" from other nearby bluetooth

              pscan enable: makes the bluetooth  device  "connectable  to"  by
              enabling the use of the "page scan" channel.

       lm  none|accept,master

              none  means  no  specific  policy.  accept  means  always accept
              incoming connections. master means  become  master  on  incoming
              connections and deny role switch on outgoing connections.

       lp  none|rswitch,hold,sniff,park

              none  means no specific policy. rswitch means allow role switch.
              hold means allow hold mode. sniff means allow sniff  mode.  park
              means allow park mode. Several options can be combined.

              This  option  determines  the various operational modes that are
              allowed for this device  when  it  participates  to  a  piconet.
              Normally    hold  and  sniff  should  be  enabled  for  standard

              hold: this mode is related to  synchronous  communications  (SCO
              voice channel for example).

              sniff:  when  in  this  mode,  a  device  is only present on the
              piconet during determined slots of time, allowing it to do other
              things  when  it  is  "absent",  for  example  to scan for other
              bluetooth devices.

              park:  this is a mode where the device is put on standby on  the
              piconet, for power-saving purposes for example.

              rswitch:  this  is  a  mode that enables role-switch (master <->
              slave) between two devices in a piconet. It is not clear whether
              this  needs  to  be  enabled  in  order  to make the "lm master"
              setting work properly or not.

       pkt_type  DH1,DM1,HV1, etc.

              This fairly obscure option determines the packet types that  the
              bluetooth  device  will send or accept. This is a very low-level
              option that should probably not be changed for normal  use.  You
              do not need to specify defaults.

              You  can check the Bluetooth specification version 1.2 Volume 2,
              Part B section 6 for more details about this.


              Default location of the global configuration file.

              Default  location  of  local  PIN  file,   used   for   incoming
              connections  in  security  mode  auto. The file contains the PIN
              code terminated by newline.


       This manual page was written by Edouard Lafargue,  Fredrik  Noring  and
       Maxim Krasnyansky.