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Prerequisites

Before you begin, set up your device and go to the required menu as described in Set up the device for A2DP functions.

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Connect a remote device

To connect a remote device, run the following command from the bluetoothctl menu: 
connect <bt_address>
Parameters <bt_address> is the Bluetooth address of the remote device. Example To connect to a paired remote device with <bt_address> D4:8A:39:78:27:41, run the following command: 
connect D4:8A:39:78:27:41
Sample output 
[bluetooth]# connect D4:8A:39:78:27:41
Attempting to connect to D4:8A:39:78:27:41
[CHG] Device D4:8A:39:78:27:41 Connected: yes
[NEW] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1
[NEW] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep2
[NEW] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep3
[NEW] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep4
[NEW] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep5
[NEW] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2
Connection successful
[NEW] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 [default]
[CHG] Device D4:8A:39:78:27:41 ServicesResolved: yes
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Repeat: off
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Shuffle: off
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: stopped
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Title: Not Provided
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 TrackNumber: 0x00000001 (1)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 NumberOfTracks: 0x00000001 (1)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Duration: 0x00000000 (0)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Album:
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Artist:
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Genre:
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 Volume: 0x004d (77)
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: pending
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: active
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: playing
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: idle
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: stopped
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[MyDeviceB]#

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List available transport

To list the available transport, run the following command from the menu transport submenu: 
list
Sample output 
[MyDeviceB]# list
Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2

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Get information about codec capabilities

To get information about the codec capabilities of a transport, run the following command from the menu transport submenu: 
show <transport>
Parameters <transport> is the transport path. Example To get information about the codec capabilities of <transport> /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2, run the following command: 
show /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2
Sample output 
[MyDeviceB]# show /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2
Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2
   UUID: 0000110b-0000-1000-8000-00805f9b34fb
   Codec: 0x00 (0)
   Configuration: 0x21 (33)
   Configuration: 0x15 (21)
   Configuration: 0x02 (2)
   Configuration: 0x35 (53)
   Device: /org/bluez/hci0/dev_D4_8A_39_78_27_41
   State: active
   Volume: 0x007f (127)

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Set absolute volume

Ensure that the DUT and the remote device support the setabsvolume feature.
To set the absolute volume of a transport, run the following command from the menu transport submenu: 
volume <transport> [value]
Parameters
  • <transport> is the transport path.
  • [value] is the volume level.
Example To set the absolute volume of <transport> /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 as 0, run the following command: 
volume /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 0
Sample output 
<me /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 0
Changing Volume succeeded
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 Volume: 0x0000 (0)
<me /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 100
Changing Volume succeeded
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 Volume: 0x0064 (100)
< /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 50
Changing Volume succeeded

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Play an audio file

To play an audio file, run the following command from the menu player submenu: 
play [item]
Sample output 
[MyDeviceB]# play
Attempting to play
Play successful
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: pending
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: active
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x000cc8b9 (837817)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: playing
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x000cc932 (837938)
[MyDeviceB]#

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Pause playback

To pause playback, run the following command from the menu player submenu: 
pause
Sample output 
[MyDeviceB]# pause
Attempting to pause
Pause successful
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x000cc888 (837768)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: paused
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x000cc888 (837768)
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: idle
[MyDeviceB]#

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Stop playback

To stop playback, run the following command from the menu player submenu: 
stop
Sample output 
[MyDeviceB]# stop
Attempting to stop
Stop successful
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: stopped
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)
[CHG] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd2 State: idle

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Play the next audio file

To play the next audio file, run the following command from the menu player submenu: 
next
Sample output 
[MyDeviceB]# next
Attempting to jump to next
Next successful

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Play the previous audio file

To play the previous audio file, run the following command from the menu player submenu: 
previous
Sample output 
[MyDeviceB]# previous
Attempting to jump to previous
Previous successful

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Fast forward playback

To fast forward playback, run the following command from the menu player submenu: 
fast-forward
Sample output 
[MyDeviceB]# fast-forward
Fast forward playback
FastForward successful
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Status: forward-seek
[CHG] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 Position: 0x00000000 (0)

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Disconnect a remote device

To disconnect a remote device, run the following command from the bluetoothctl menu: 
disconnect <bt_address>
Parameters <bt_address> is the Bluetooth address of the remote device. Example To disconnect a paired remote device with <bt_address> D4:8A:39:78:27:41, run the following command: 
disconnect D4:8A:39:78:27:41
Sample output 
[MyDeviceB]# disconnect D4:8A:39:78:27:41
Attempting to disconnect from D4:8A:39:78:27:41
[DEL] Player /org/bluez/hci0/dev_D4_8A_39_78_27_41/player0 [default]
[DEL] Transport /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1/fd1
[DEL] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep1
[DEL] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep2
[DEL] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep3
[DEL] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep4
[DEL] Endpoint /org/bluez/hci0/dev_D4_8A_39_78_27_41/sep5
[CHG] Device D4:8A:39:78:27:41 ServicesResolved: no
Successful disconnected
[CHG] Device D4:8A:39:78:27:41 Connected: no

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Other player functions

The menu player submenu offers other functions that enable you to:
  • Shuffle tracks
  • Rewind an audio file
  • Repeat a single track, all tracks, or a playlist
  • Switch the equalizer on or off
  • Search a track