Hi Johan, Thanks for your quick reply -- I wish I had posted here days ago! Say, am I supposed to be sending my response only to you, or to the whole mailing list? Well, you probably got me a few steps closer (that I *never* would have figured out on my own), but I'm afraid the behavior of bluetoothd is unchanged. I've only tried it with bluez 4.17 -- should I try an earlier version? I created /etc/bluetooth/audio.conf with these contents: [Headset] MaxConnections=2 I also tried adding that to /etc/bluetooth/main.conf, and I tried adding MaxConnections=2 to the [General] section there as well. I also tried MaxConnected=2 due to a suspicious message "audio.conf: Key file does not have key 'MaxConnected'" that I got from bluetoothd; debug mode seems to give messages like that for keys which could (should?) have been in the conf files but weren't. And I added 'profile "voice"' to both PCMs in my .asoundrc. None of this seemed to substantially change bluetoothd's behavior. Here's the full output of "/usr/sbin/bluetoothd -d -n" running as root during one of my attempts, with my own actions annotated in <> angle brackets. This is starting from scratch (i.e. no stored pairings, so I have to re-enter both PINs): bluetoothd[3103]: Bluetooth daemon bluetoothd[3103]: Enabling debug information bluetoothd[3103]: parsing main.conf bluetoothd[3103]: offmode=NoScan bluetoothd[3103]: discovto=0 bluetoothd[3103]: pageto=8192 bluetoothd[3103]: name=%h-%d bluetoothd[3103]: class=0x000100 bluetoothd[3103]: inqmode=0 bluetoothd[3103]: Starting SDP server bluetoothd[3103]: Loading plugins /usr/lib/bluetooth/plugins bluetoothd[3103]: Unix socket created: 11 bluetoothd[3103]: audio.conf: Key file does not have key 'HFP' bluetoothd[3103]: Telephony plugin initialized bluetoothd[3103]: HFP AG features: "Ability to reject a call" "Enhanced call status" "Extended Error Result Codes" bluetoothd[3103]: Parsing /etc/bluetooth/input.conf failed: No such file or directory bluetoothd[3103]: Parsing /etc/bluetooth/network.conf failed: No such file or directory bluetoothd[3103]: Config options: InterfacePrefix=bnep%d, PANU_Script=(null), GN_Script=(null), NAP_Script=(null), GN_Interface=pan0, NAP_Interface=pan1, Security=true bluetoothd[3103]: bridge pan0 created bluetoothd[3103]: HCI dev 0 registered bluetoothd[3103]: child 3109 forked bluetoothd[3103]: HCI dev 0 already up bluetoothd[3103]: headset_server_probe: path /org/bluez/hci0 bluetoothd[3103]: audio.conf: Key file does not have key 'Master' bluetoothd[3103]: Adding record with handle 0x10000 bluetoothd[3103]: Record pattern UUID 00000003-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001108-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001112-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001203-0000-1000-8000-00805f9 bluetoothd[3103]: audio.conf: Key file does not have key 'SCORouting' bluetoothd[3103]: Adding record with handle 0x10001 bluetoothd[3103]: Record pattern UUID 00000003-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000111e-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000111f-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001203-0000-1000-8000-00805f9 bluetoothd[3103]: a2dp_server_probe: path /org/bluez/hci0 bluetoothd[3103]: audio.conf: Key file does not have key 'Disable' bluetoothd[3103]: audio.conf: Key file does not have group 'A2DP' bluetoothd[3103]: audio.conf: Key file does not have group 'A2DP' bluetoothd[3103]: audio.conf: Key file does not have group 'A2DP' bluetoothd[3103]: audio.conf: Key file does not have group 'A2DP' bluetoothd[3103]: audio.conf: Key file does not have key 'Master' bluetoothd[3103]: SEP 0xb840b6e0 registered: type:0 codec:0 seid:1 bluetoothd[3103]: Adding record with handle 0x10002 bluetoothd[3103]: Record pattern UUID 00000019-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000110a-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000110d-0000-1000-8000-00805f9 bluetoothd[3103]: avrcp_server_probe: path /org/bluez/hci0 bluetoothd[3103]: audio.conf: Key file does not have key 'Master' bluetoothd[3103]: Adding record with handle 0x10003 bluetoothd[3103]: Record pattern UUID 00000017-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000110c-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000110e-0000-1000-8000-00805f9 bluetoothd[3103]: Adding record with handle 0x10004 bluetoothd[3103]: Record pattern UUID 00000017-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 0000110e-0000-1000-8000-00805f9 bluetoothd[3103]: proxy_probe: path /org/bluez/hci0 bluetoothd[3103]: Registered interface org.bluez.SerialProxyManager on path /org/bluez/hci0 bluetoothd[3103]: service_probe: path /org/bluez/hci0 bluetoothd[3103]: Registered interface org.bluez.Service on path /org/bluez/hci0 bluetoothd[3103]: network_server_probe: path /org/bluez/hci0 bluetoothd[3103]: Adding record with handle 0x10005 bluetoothd[3103]: Record pattern UUID 0000000f-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001115-0000-1000-8000-00805f9 bluetoothd[3103]: register_server_record: got record id 0x10005 bluetoothd[3103]: Registered interface org.bluez.NetworkPeer on path /org/bluez/hci0 bluetoothd[3103]: network_server_probe: path /org/bluez/hci0 bluetoothd[3103]: Adding record with handle 0x10006 bluetoothd[3103]: Record pattern UUID 0000000f-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001117-0000-1000-8000-00805f9 bluetoothd[3103]: register_server_record: got record id 0x10006 bluetoothd[3103]: Registered interface org.bluez.NetworkHub on path /org/bluez/hci0 bluetoothd[3103]: network_server_probe: path /org/bluez/hci0 bluetoothd[3103]: Adding record with handle 0x10007 bluetoothd[3103]: Record pattern UUID 0000000f-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00000100-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001002-0000-1000-8000-00805f9 bluetoothd[3103]: Record pattern UUID 00001116-0000-1000-8000-00805f9 bluetoothd[3103]: register_server_record: got record id 0x10007 bluetoothd[3103]: Registered interface org.bluez.NetworkRouter on path /org/bluez/hci0 bluetoothd[3103]: Adapter /org/bluez/hci0 has been enabled bluetoothd[3103]: Starting security manager 0 bluetoothd[3103]: child 3109 exited bluetoothd[3103]: Computer is classified as desktop bluetoothd[3103]: Current device class is 0x4a0104 bluetoothd[3103]: Setting 0x000104 for major/minor device class bluetoothd[3103]: Agent registered for hci0 at :1.21:/org/bluez/agent/hci0 <turned on the Jabra BT2040 headset> bluetoothd[3103]: adapter_get_device(00:1A:45:31:47:69) bluetoothd[3103]: adapter_create_device(00:1A:45:31:47:69) bluetoothd[3103]: Creating device /org/bluez/hci0/dev_00_1A_45_31_47_69 bluetoothd[3103]: link_key_request (sba=00:15:83:02:4F:E7, dba=00:1A:45:31:47:69) bluetoothd[3103]: kernel auth requirements = 0x00 bluetoothd[3103]: pin_code_request (sba=00:15:83:02:4F:E7, dba=00:1A:45:31:47:69) bluetoothd[3103]: hcid_dbus_new_auth_request <entered PIN> bluetoothd[3103]: link_key_notify (sba=00:15:83:02:4F:E7, dba=00:1A:45:31:47:69) bluetoothd[3103]: hcid_dbus_bonding_process_complete: status=00 bluetoothd[3103]: adapter_get_device(00:1A:45:31:47:69) bluetoothd[3103]: adapter_get_device(00:1A:45:31:47:69) bluetoothd[3103]: Probe drivers for /org/bluez/hci0/dev_00_1A_45_31_47_69 bluetoothd[3103]: adapter_get_device(00:1A:45:31:47:69) bluetoothd[3103]: Found Headset record bluetoothd[3103]: Discovered Headset service on RFCOMM channel 2 bluetoothd[3103]: Registered interface org.bluez.Headset on path /org/bluez/hci0/dev_00_1A_45_31_47_69 bluetoothd[3103]: Found Handsfree record bluetoothd[3103]: Discovered Handsfree service on RFCOMM channel 1 bluetoothd[3103]: headset_probe: path /org/bluez/hci0/dev_00_1A_45_31_47_69 bluetoothd[3103]: Registered interface org.bluez.Input on path /org/bluez/hci0/dev_00_1A_45_31_47_69 <turned on the Motorola H680 headset> bluetoothd[3103]: adapter_get_device(00:1A:0E:B8:B3:7F) bluetoothd[3103]: adapter_create_device(00:1A:0E:B8:B3:7F) bluetoothd[3103]: Creating device /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: link_key_request (sba=00:15:83:02:4F:E7, dba=00:1A:0E:B8:B3:7F) bluetoothd[3103]: kernel auth requirements = 0x00 bluetoothd[3103]: pin_code_request (sba=00:15:83:02:4F:E7, dba=00:1A:0E:B8:B3:7F) bluetoothd[3103]: hcid_dbus_new_auth_request <entered PIN> bluetoothd[3103]: link_key_notify (sba=00:15:83:02:4F:E7, dba=00:1A:0E:B8:B3:7F) bluetoothd[3103]: hcid_dbus_bonding_process_complete: status=00 bluetoothd[3103]: adapter_get_device(00:1A:0E:B8:B3:7F) bluetoothd[3103]: adapter_get_device(00:1A:0E:B8:B3:7F) bluetoothd[3103]: link_key_request (sba=00:15:83:02:4F:E7, dba=00:1A:0E:B8:B3:7F) bluetoothd[3103]: kernel auth requirements = 0x00 bluetoothd[3103]: stored link key type = 0x00 bluetoothd[3103]: hcid_dbus_bonding_process_complete: status=00 bluetoothd[3103]: adapter_get_device(00:1A:0E:B8:B3:7F) bluetoothd[3103]: hcid_dbus_bonding_process_complete: no pending auth request bluetoothd[3103]: adapter_get_device(00:1A:0E:B8:B3:7F) bluetoothd[3103]: Probe drivers for /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: Found Handsfree record bluetoothd[3103]: Discovered Handsfree service on RFCOMM channel 1 bluetoothd[3103]: Registered interface org.bluez.Headset on path /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: State changed /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F: HEADSET_STATE_DISCONNECTED -> HEADSET_STATE_CONNECT_IN_PROGRESS bluetoothd[3103]: Accepted headset connection from 00:1A:0E:B8:B3:7F for /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: Received AT+BRSF=26 bluetoothd[3103]: HFP HF features: "Call waiting and 3-way calling" "Voice recognition activation" "Remote volume control" bluetoothd[3103]: Received AT+CIND=? bluetoothd[3103]: Received AT+CIND? bluetoothd[3103]: Probe drivers for /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: Found Headset record bluetoothd[3103]: Found Handsfree record bluetoothd[3103]: Discovered Handsfree service on RFCOMM channel 1 bluetoothd[3103]: headset_probe: path /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: Registered interface org.bluez.Input on path /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F bluetoothd[3103]: Received AT+CMER=3, 0, 0, 1 bluetoothd[3103]: Event reporting (CMER): mode=3, ind=1 bluetoothd[3103]: HFP Service Level Connection established bluetoothd[3103]: telephony-dummy: device 0xb8421d20 connected bluetoothd[3103]: State changed /org/bluez/hci0/dev_00_1A_0E_B8_B3_7F: HEADSET_STATE_CONNECT_IN_PROGRESS -> HEADSET_STATE_CONNECTED bluetoothd[3103]: Received AT+BTRH? bluetoothd[3103]: Received AT+VGS=05 <started aplay on the Jabra> bluetoothd[3103]: Accepted new client connection on unix socket (fd=23) bluetoothd[3103]: Audio API: received BT_GETCAPABILITIES_REQ bluetoothd[3103]: Audio API: sending BT_GETCAPABILITIES_RSP bluetoothd[3103]: Audio API: received BT_SETCONFIGURATION_REQ bluetoothd[3103]: config sco - device = 00:1A:45:31:47:69 access_mode = 2 bluetoothd[3103]: /org/bluez/hci0/dev_00_1A_45_31_47_69: Connecting to 00:1A:45:31:47:69 channel 1 bluetoothd[3103]: State changed /org/bluez/hci0/dev_00_1A_45_31_47_69: HEADSET_STATE_DISCONNECTED -> HEADSET_STATE_CONNECT_IN_PROGRESS bluetoothd[3103]: adapter_get_device(00:1A:45:31:47:69) bluetoothd[3103]: link_key_request (sba=00:15:83:02:4F:E7, dba=00:1A:45:31:47:69) bluetoothd[3103]: kernel auth requirements = 0x00 bluetoothd[3103]: stored link key type = 0x00 bluetoothd[3103]: /org/bluez/hci0/dev_00_1A_45_31_47_69: Connected to 00:1A:45:31:47:69 bluetoothd[3103]: Received AT+BRSF=26 bluetoothd[3103]: HFP HF features: "Call waiting and 3-way calling" "Voice recognition activation" "Remote volume control" bluetoothd[3103]: Received AT+CIND=? bluetoothd[3103]: Received AT+CIND? bluetoothd[3103]: Received AT+CMER=3, 0, 0, 1 bluetoothd[3103]: Event reporting (CMER): mode=3, ind=1 bluetoothd[3103]: HFP Service Level Connection established bluetoothd[3103]: telephony-dummy: device 0xb84107c0 connected bluetoothd[3103]: State changed /org/bluez/hci0/dev_00_1A_45_31_47_69: HEADSET_STATE_CONNECT_IN_PROGRESS -> HEADSET_STATE_CONNECTED bluetoothd[3103]: State changed /org/bluez/hci0/dev_00_1A_45_31_47_69: HEADSET_STATE_CONNECTED -> HEADSET_STATE_PLAY_IN_PROGRESS bluetoothd[3103]: Received AT+BTRH? bluetoothd[3103]: SCO socket opened for headset /org/bluez/hci0/dev_00_1A_45_31_47_69 bluetoothd[3103]: SCO fd=26 bluetoothd[3103]: Audio API: sending BT_SETCONFIGURATION_RSP bluetoothd[3103]: State changed /org/bluez/hci0/dev_00_1A_45_31_47_69: HEADSET_STATE_PLAY_IN_PROGRESS -> HEADSET_STATE_PLAYING bluetoothd[3103]: Audio API: received BT_STREAMSTART_REQ bluetoothd[3103]: Audio API: sending BT_STREAMSTART_RSP bluetoothd[3103]: Audio API: sending BT_STREAMFD_IND bluetoothd[3103]: Received AT+VGS=08 bluetoothd[3103]: Received AT+VGM=08 <with aplay still outputting to the Jabra, I now start another aplay in a separate window outputting to the Motorola> bluetoothd[3103]: Accepted new client connection on unix socket (fd=27) bluetoothd[3103]: Audio API: received BT_GETCAPABILITIES_REQ bluetoothd[3103]: Audio API: sending BT_GETCAPABILITIES_RSP bluetoothd[3103]: Audio API: received BT_SETCONFIGURATION_REQ bluetoothd[3103]: config sco - device = 00:1A:0E:B8:B3:7F access_mode = 2 bluetoothd[3103]: connect: Operation not permitted (1) bluetoothd[3103]: config failed bluetoothd[3103]: Audio API: sending BT_SETCONFIGURATION_RSP bluetoothd[3103]: Unix client disconnected (fd=27) <I hit ctrl-c in my bluetoothd window to kill bluetoothd> bluetoothd[3103]: Cleanup plugins bluetoothd[3103]: bridge pan0 removed bluetoothd[3103]: Stopping SDP server bluetoothd[3103]: Exit I was confused by one thing from above: it says "HFP Service Level Connection established" after I run aplay; but I thought I was using HSP, not HFP. This inspired me to try duplicating your [Headset] section and renaming it to [HFP] -- but that, too, made no difference. I don't even know whether or not [HFP] accepts a MaxConnections/MaxConnected key. --- On Sun, 11/9/08, Johan Hedberg <johan.hedberg@xxxxxxxxx> wrote: > From: Johan Hedberg <johan.hedberg@xxxxxxxxx> > Subject: Re: Possible to send audio to multiple bluetooth headsets at once? > To: "BlueZ development" <linux-bluetooth@xxxxxxxxxxxxxxx> > Date: Sunday, November 9, 2008, 1:35 AM > Hi Damon, > > In theory what you're trying to do should be possible, > though you > might run into bandwidth issues (and there's not much > BlueZ can do to > help with that). However, you do need some configuration > file changes > since the defaults are for one headset only. If you're > trying to use > HSP/HFP add MaxConnections=2 to the [Headset] section in > /etc/ > bluetooth/audio.conf. If you're trying to use A2DP add > SBCSources=2 to > the [A2DP] section of the same file. You might also want to > experiment > with forcing BlueZ to use the profile you want in the case > of multi- > profile headsets. For HSP/HFP you need profile=voice in > your .asoundrc > entries and for A2DP you need profile=hifi. > > Johan > > -- > To unsubscribe from this list: send the line > "unsubscribe linux-bluetooth" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at > http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
