[Bluez-devel] btsco with an HP embedded bluetooth adapter

[Bluez-devel] btsco with an HP embedded bluetooth adapter

[Mario Temporary]

Hi all,
I'm trying to use my plantronics Voyager 510 with the embedded
Bluetooth adapter of my HP Pavillion notebook.
I'm using btsco 0.41 e it seems to work with my external USB D-Link
DBT-120 adapter.

With the internal BT adapter I can record my voice but I'm not able to
ear anything (only noise...).
I've read the following on the project page:
-----------------
Output from hciconfig hci0 revision (Run hciconfig as root)
    * If it prints "SCO mapping: HCI" then your adapter should work.
    * If it prints "SCO mapping: PCM" then you might permanently
change the setting using a command like "pskey mapsco 0" using
bluez-utils-cvs but this is at your own risk.
    * If it doesn't print either of those, you probably need a
different bluetooth adapter (preferably "CSR" based)
-----------------
This is the (censored) output on my (internal adapter):
root@legolas:~# hciconfig hci0 revision
hci0:   Type: USB
        BD Address: 00:10:C6:XX:XX:XX ACL MTU: 377:10 SCO MTU: 16:0
        Firmware 2.105 / 97

Is this the problem? Should I forget the idea to use it? :(

Thanks,
Mario


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[Bluez-devel] Re: btsco with an HP embedded bluetooth adapter

[Mario Temporary]

I've just read that the Broadcom chipsets are unsupported by the SCO
linux driver. This is a real mess. I have another question: why I'm
able to use it as microphone without any problem (I can record my
voice!), but I'm not able to hear anything through the BT headphone?

Thanks,
Mario

2006/2/8, Mario Temporary <mario.temporary@gmail.com>:
> Hi all,
> I'm trying to use my plantronics Voyager 510 with the embedded
> Bluetooth adapter of my HP Pavillion notebook.
> I'm using btsco 0.41 e it seems to work with my external USB D-Link
> DBT-120 adapter.
>
> With the internal BT adapter I can record my voice but I'm not able to
> ear anything (only noise...).
> I've read the following on the project page:
> -----------------
> Output from hciconfig hci0 revision (Run hciconfig as root)
>     * If it prints "SCO mapping: HCI" then your adapter should work.
>     * If it prints "SCO mapping: PCM" then you might permanently
> change the setting using a command like "pskey mapsco 0" using
> bluez-utils-cvs but this is at your own risk.
>     * If it doesn't print either of those, you probably need a
> different bluetooth adapter (preferably "CSR" based)
> -----------------
> This is the (censored) output on my (internal adapter):
> root@legolas:~# hciconfig hci0 revision
> hci0:   Type: USB
>         BD Address: 00:10:C6:XX:XX:XX ACL MTU: 377:10 SCO MTU: 16:0
>         Firmware 2.105 / 97
>
> Is this the problem? Should I forget the idea to use it? :(
>
> Thanks,
> Mario
>


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Re: [Bluez-devel] Re: btsco with an HP embedded bluetooth adapter

[Brad Midgley]

Mario

> I've just read that the Broadcom chipsets are unsupported by the SCO
> linux driver. This is a real mess. I have another question: why I'm
> able to use it as microphone without any problem (I can record my
> voice!), but I'm not able to hear anything through the BT headphone?

Maybe the mtu is only messed up for adapter->headset traffic.

Did you try this patch?

http://sourceforge.net/mailarchive/message.php?msg_id=14450798

Brad


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Re: [Bluez-devel] Re: btsco with an HP embedded bluetooth adapter

[Mario]

2006/2/9, Brad Midgley <bmidgley@xmission.com>:
> Maybe the mtu is only messed up for adapter->headset traffic.
>
> Did you try this patch?
>
> http://sourceforge.net/mailarchive/message.php?msg_id=3D14450798

I've tried it (but I've to say that I forgot to recompile the
snd-bt-sco module; is it important?) without success.  Should I see a
different output of 'hciconfig hci0 revision' with this patch?

root@legolas:~# hciconfig hci0 revision
hci0:   Type: USB
        BD Address: 00:10:C6:59:7A:FC ACL MTU: 377:10 SCO MTU: 16:0
        Firmware 2.105 / 97

Is my Broadcom chipset supported or not? :|

If you say that this patch could work, I can try a second time.

Thanks for your reply.
Mario


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Re: [Bluez-devel] Re: btsco with an HP embedded bluetooth adapter

[Brad Midgley]

Mario

>>Did you try this patch?
>>
>>http://sourceforge.net/mailarchive/message.php?msg_id=14450798
> 
> 
> I've tried it (but I've to say that I forgot to recompile the
> snd-bt-sco module; is it important?) without success.  Should I see a
> different output of 'hciconfig hci0 revision' with this patch?

the patch only modifies the low-level bluetooth module (offhand not sure
which). but it will require you to make modules_install to overwrite the
old modules

> 
> root@legolas:~# hciconfig hci0 revision
> hci0:   Type: USB
>         BD Address: 00:10:C6:59:7A:FC ACL MTU: 377:10 SCO MTU: 16:0
>         Firmware 2.105 / 97

this won't change. (I updated the bluetooth-alsa.sf.net page to link to
the patch by the way)

> 
> Is my Broadcom chipset supported or not? :|
> 
> If you say that this patch could work, I can try a second time.

it might work with this fix, but I've only heard one success story so
far (from the patch author)

Brad


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