-*- outline -*-

* Debian.

  $ sudo apt-get install bluetooth
  $ sudo apt-get install bluez-utils

* BlueZ.

BlueZ is official Linux Bluetooth protocol stack.

** How find local bluetooth device?

  $ hcitool dev
Devices:
    hci0    00:03:C9:05:65:98
    hci1    00:1F:81:00:02:5A

or (hciconfig placed in /usr/sbin, so see you PATH!)

  $ hciconfig -a
hci0:   Type: USB
    BD Address: 00:03:C9:05:65:98 ACL MTU: 1017:8 SCO MTU: 64:0
    UP RUNNING PSCAN
    RX bytes:2517 acl:12 sco:0 events:64 errors:0
    TX bytes:756 acl:12 sco:0 commands:33 errors:0
    Features: 0xff 0xff 0x8d 0xfe 0x9b 0xfd 0x00 0x80
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
    Link policy: RSWITCH HOLD SNIFF PARK
    Link mode: SLAVE ACCEPT
    Name: 'desktop-0'
    Class: 0x3e0100
    Service Classes: Networking, Rendering, Capturing, Object Transfer, Audio
    Device Class: Computer, Uncategorized
    HCI Ver: 2.0 (0x3) HCI Rev: 0x2000 LMP Ver: 2.0 (0x3) LMP Subver: 0x415c
    Manufacturer: Broadcom Corporation (15)

hci1:   Type: USB
    BD Address: 00:1F:81:00:02:5A ACL MTU: 339:6 SCO MTU: 180:1
    UP RUNNING PSCAN
    RX bytes:398 acl:0 sco:0 events:18 errors:0
    TX bytes:317 acl:0 sco:0 commands:17 errors:0
    Features: 0xef 0x3e 0x09 0xf0 0x0b 0x08 0x00 0x00
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
    Link policy: RSWITCH HOLD SNIFF PARK
    Link mode: SLAVE ACCEPT
    Name: 'desktop-1'
    Class: 0x3e0100
    Service Classes: Networking, Rendering, Capturing, Object Transfer, Audio
    Device Class: Computer, Uncategorized
    HCI Ver: 1.2 (0x2) HCI Rev: 0x2 LMP Ver: 1.2 (0x2) LMP Subver: 0x2
    Manufacturer: not assigned (74)

** How find remote bluetooth device?

  $ hcitool scan
Scanning ...
        00:22:66:D1:B7:20       Nokia 5320

In order to do this remote device must be set "visible".

** How to set bluetooth dongle "visible"?

  $ hciconfig -a | grep hci.:
hci0: Type: USB
  $ sudo hciconfig hci0 piscan

** How to determine bluetooth dongle is "visible"?

Run hciconfig -a and see for PSCAN and ISCAN keyword:

  $ hciconfig -a
hci0: Type: USB
...
    UP RUNNING PSCAN ISCAN
...

then try from another host:

  $ hcitool scan

or use another device such as phone to search.

** What version of Bluetooth support local device?

  $ sudo hciconfig -a
hci0:   Type: USB
...
    HCI Ver: 2.0 (0x3) HCI Rev: 0x2000 LMP Ver: 2.0 (0x3) LMP Subver: 0x415c
...
hci1:   Type: USB
...
    HCI Ver: 1.2 (0x2) HCI Rev: 0x2 LMP Ver: 1.2 (0x2) LMP Subver: 0x2
...

** What support remote device?

  $ sudo sdptool browse  00:22:66:D1:B7:20

Browsing 00:22:66:D1:B7:20 ...
Service Name: AVRCP Target
Service Description: Audio Video Remote Control
Service Provider: Symbian Software Ltd.
Service RecHandle: 0x10000
Service Class ID List:
  "AV Remote Target" (0x110c)
Protocol Descriptor List:
  "L2CAP" (0x0100)
    PSM: 23
  "AVCTP" (0x0017)
    uint16: 0x100
Profile Descriptor List:
  "AV Remote" (0x110e)
    Version: 0x0100
...

00:1b:52:a8:f6:96


See

  http://www.bluez.org/
    bluez home page

* Remote control throw mobile.

  http://anyremote.sourceforge.net/docs.html

* Spec.

See

  http://www.bluetooth.com/Bluetooth/Technology/Building/Specifications/