2008-02-17 17:07:40

by mountain rides

[permalink] [raw]
Subject: [Bluez-users] Connecting to a two-way headset


Hi,

Apologies if I'm asking a repeated question, but my search just now didn't =
pick up any answers.

I'm trying to get a speaker-and-microphone headset working.

More exactly . . .

I have a new Sony Ericsson HBH-PV702 Bluetooth headset - that is, a headset=
not with just speakers, but with both a speaker and microphone. =


I also have a Dell Inspiron 6400 with Bluetooth built-in, on which I'm runn=
ing Debian Lenny (Linux 2.6.22-3-amd64 #1 SMP Sun Nov 4 18:18:09 UTC 2007 x=
86_64 GNU/Linux).

I would like to use the headset with Twinkle, which is also installed and o=
ften used (with a run-of-the-mill wired headset).

I have several bluetooth-related Debian packages installed, for example: "b=
luetooth" (3.24-1+b1); "bluetooth-alsa" (0.5cvs20070327-1); "bluetooth-audi=
o" (3.4-1+b1); "bluez-gnome" (0.13-1); "bluez-utils" (3.24-1+b1); "gnome-bl=
uetooth" (0.9.1-1); "gnome-vfs-obexftp" (0.4-1); "libbluetooth2" (3.24-1); =
"libbtctl4" (0.9.0-2); libgnomebt0 (0.9.1-1); "libsbc0" (0.0cvs20070728-1);=
etc. (This, according to Synaptic.)

>>From the headset's user's manual, I have learned that to connect it to anot=
her device, I must first "prepare" the headset - which I assume means put i=
t into "pairing" mode by pressing both volume-up and volume-down buttons si=
multaneously until the LED alternates red/green.

I learned from various sources on the net, that to connect my computer to t=
he headset, as the root user I must run the command:

hcitool scan

to discern the headset's (what-I'm-calling-"MAC") address:

Scanning ...
00:1C:A4:20:CE:BE HBH-PV702

And, once I have that address, I can use it with the hcitool cc command to =
connect to the headset

hcitool cc 00:1C:A4:20:CE:BE

The response to which in /var/log/syslog is

22:45:56 NetworkManager: [1202852568.559130] nm_hal_device_added(): New de=
vice added (hal udi is '/org/freedesktop/Hal/devices/bluetooth_acl_1ca420ce=
be'). =

22:45:56 hcid[3320]: link_key_request (sba=3D00:16:CF:CF:09:16, dba=3D00:1C=
:A4:20:CE:BE)
22:45:57 NetworkManager: [1202852571.034919] nm_hal_device_removed(): Devi=
ce removed (hal udi is '/org/freedesktop/Hal/devices/bluetooth_acl_1ca420ce=
be'). =


So my question is:

Is this right? (It seems strange to me that the device would be removed on=
e second after it has been added.) =


If so, what would be the next step towards using the headset? If not, how =
can I make it what it should be?

Or am I going about this completely the wrong way?

In case it helps to answer those questions, I'll provide a couple other thi=
ngs I've noticed:

I have a what is called a "Bluetooth Applet" in what I call my desktop's ta=
skbar. When I right-click on it and select "Browse Devices", I get a one-i=
tem list of devices: "HBH-PV702 Headset". The first time I ran

hcitool info 00:1C:A4:20:CE:BE

I was prompted by a graphical (rather than command-line) prompt (seemingly =
from the applet) saying "Pairing request for device: HBH-PV702 (00:1C:A4:20=
:CE:BE) Enter passkey for authentication:"

I entered "0000" (as mentioned in the headset's user's manual) and clicked =
the prompt's "OK" button, and the following was then printed in the command=
-prompt window where I had entered the hcitool info command:

BD Address: 00:1C:A4:20:CE:BE
LMP Version: 1.2 (0x2) LMP Subversion: 0x73b
Manufacturer: Cambridge Silicon Radio (10)
Features: 0xfc 0xfe 0x0f 0x00 0x08 0x08 0x00 0x00
=

=

=

=

=


Moreover, a padlock-icon also appeared in the applet's device-list between =
"HBH-PV702" and "Headset". What this padlock means . . . I have no idea.

But that passkey prompt was a one-time-only phenomenon. Every subsequent h=
citool info command returns the same response in the command-prompt window =
- with no further prompt for a "passkey". And the padlock remains.

I get the impression I'm way off track.


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2008-02-18 02:38:56

by Leszek Koltunski

[permalink] [raw]
Subject: Re: [Bluez-users] Connecting to a two-way headset




> I have several bluetooth-related Debian packages installed, for
> example: "bluetooth" (3.24-1+b1); "bluetooth-alsa" (0.5cvs20070327-1);
> "bluetooth-audio" (3.4-1+b1); "bluez-gnome" (0.13-1); "bluez-utils"
> (3.24-1+b1); "gnome-bluetooth" (0.9.1-1); "gnome-vfs-obexftp" (0.4-1);
> "libbluetooth2" (3.24-1); "libbtctl4" (0.9.0-2); libgnomebt0 (0.9.1-1);
> "libsbc0" (0.0cvs20070728-1); etc. (This, according to Synaptic.)

You have a strange mixture of packages. If all you're trying to do
(bluetooth-wise) is use your bt headset, those are all the packages you
need:

- bluez-gnome
- bluez-utils
- bluez-audio
- libbluetooth2

'bluetooth' is just a metapackage (empty package that pulls in all
bluetooth-related things ) bluetooth-alsa is a part of an older project,
not related to this ML. 'bluetooth-audio' - ditto. gnome-bluetooth - I
have no idea. gnome-vfs-obexftp - that's for browsing remote filesystems
over bluetooth. libbtctl4, libgnomebt0, libsbc0 - obsolete libraries


> From the headset's user's manual, I have learned that to connect it to
>another device, I must first "prepare" the headset - which I assume
> means put it into "pairing" mode by pressing both volume-up and
> volume-down buttons simultaneously until the LED alternates red/green.
>
> I learned from various sources on the net, that to connect my computer
> to the headset, as the root user I must run the command:
>
> hcitool scan
>
> to discern the headset's (what-I'm-calling-"MAC") address:
>
> Scanning ...
> 00:1C:A4:20:CE:BE HBH-PV702
>
> And, once I have that address, I can use it with the hcitool cc command
> to connect to the headset
>
> hcitool cc 00:1C:A4:20:CE:BE
>

No, that's not true. Since you're already paired with the Headset, all you
need to do now is start playing music :) ( and possibly switch the audio
service on )
Follow http://wiki.bluez.org/wiki/HOWTO/AudioDevices

> I have a what is called a "Bluetooth Applet" in what I call my
> desktop's taskbar. When I right-click on it and select "Browse
Devices", I get a one-item list of devices: "HBH-PV702 Headset".

Cool! that means you're paired already. No need to do any 'hcitool scan -
hcitool cc' magic anymore.

The first time I ran
>
> hcitool info 00:1C:A4:20:CE:BE
>
> I was prompted by a graphical (rather than command-line) prompt
> (seemingly from the applet) saying "Pairing request for device:
> HBH-PV702 (00:1C:A4:20:CE:BE) Enter passkey for authentication:"
>
> I entered "0000" (as mentioned in the headset's user's manual) and
> clicked the prompt's "OK" button, and the following was then
> printed in the command-prompt window where I had entered the hcitool
> info command:

That was the pairing process. As you say, a one-time phenomenon.

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