First post here, not a developer, but I'm posting here as advised on the
bluetooth-alsa site.
I have a 3Com 3CREB96 USB dongle and a SonyEricsson HBH-602 headset. I
have the following installed on the laptop:
kernel 2.6.15
bluez-libs 2.25
bluez-utils 2.25
bluez-hcidump 1.29
btsco 0.41
Bluetooth daemons are running, snd-bt-sco is loaded, hci0 is up, with
the voice 0x0060 setting. The devices are paired successfully. I now run
btsco -v A1:B2:C3:D4:E5:F6, and get the following response:
btsco v0.41
Device is 1:0
Voice setting: 0x0060
RFCOMM channel 1 connected
recieved AT*ECBP=?
recieved AT+CLIP=1
recieved AT+CSCS="UTF-8"
recieved AT+CLAN?
In another terminal, I try aplay -B 1000000 -D plughw:Headset test.wav,
and the following is added in the btsco terminal:
i/o needed: connecting sco...
Can't connect SCO audio channel
: Connection refused
I shut down btsco, and after nearly 30 seconds, I hear a single beep in
the headset. I run btsco again as above, with the same initial response,
and run aplay again. This time, the sound file plays through the
headset, and btsco shows the following:
i/o needed: connecting sco...
connected SCO channel
Done setting sco fd
recieved AT+VGS=12
Sending up speaker change 12
speaker volume: 12 mic volume: 11
driver is not in use
disconnected SCO channel
RFCOMM channel lost
btsco then shuts itself down.
All the above is consistently reproducable. Also, the same responses are
seen if arecord is used instead of aplay, except of course that a file
is recorded instead of played on the second attempt.
About a year ago, I had the same headset working correctly with btsco
and a 3Com BT PCMCIA card, which I unfortunately can no longer use.
If more info is required - hcidump, logs, etc - let me know. I am aware
that this is a dev list, so I will understand completely if nobody is
interested.
All the best
Tom K.
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Mitja Pufic wrote:
> Hello Tom,
>
> this really looks promissing, mine dongle says PCM, that could be because
> I am using it with a very old version of bluez. I see no problem, why
> this should not work with sco.
>
>
Thanks again, Mitja. Everything looks like it's in order, alright, but I
just can't set up a usable connection. It's a bit frustrating, because I
can send and receive audio, as described, so the hardware must be OK.
It's something in the setup, but I don't know what at the moment. Time
for some more tinkering, I think.
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Hello Tom,
this really looks promissing, mine dongle says PCM, that could be because
I am using it with a very old version of bluez. I see no problem, why
this should not work with sco.
> Many thanks for your response.
> It's pretty old alright, but hciconfig hci0 revision gives me
>
> hci0: Type: USB
> BD Address: 00:04:76:AD:12:E3 ACL MTU: 128:8 SCO MTU: 64:8
> HCI 10.3
> Chip version: BlueCore01b (ES)
> SCO mapping: HCI
>
> which looked promising to me. Still, if it's not the right stuff, I'll hunt
> around for another one.
>
>
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Mitja Pufic wrote:
> Hello,
>
> This is a very old dongle, with bluecore01 and confirms with bluetooth
> 1.0b specification. And as far as I know it has SCO mapped to PCM and not
> HCI, so this is the reason, why your setup is not working. Check mail
> list archive how to change this, or if it is even possible on this old
> chip. PCMCIA version does not have this problem.
>
>
Many thanks for your response.
It's pretty old alright, but hciconfig hci0 revision gives me
hci0: Type: USB
BD Address: 00:04:76:AD:12:E3 ACL MTU: 128:8 SCO MTU: 64:8
HCI 10.3
Chip version: BlueCore01b (ES)
SCO mapping: HCI
which looked promising to me. Still, if it's not the right stuff, I'll
hunt around for another one.
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Hello,
This is a very old dongle, with bluecore01 and confirms with bluetooth
1.0b specification. And as far as I know it has SCO mapped to PCM and not
HCI, so this is the reason, why your setup is not working. Check mail
list archive how to change this, or if it is even possible on this old
chip. PCMCIA version does not have this problem.
br, Mitja
On Thu, 23 Mar 2006, Tom K wrote:
> First post here, not a developer, but I'm posting here as advised on the
> bluetooth-alsa site.
>
> I have a 3Com 3CREB96 USB dongle and a SonyEricsson HBH-602 headset. I have
> the following installed on the laptop:
>
> kernel 2.6.15
> bluez-libs 2.25
> bluez-utils 2.25
> bluez-hcidump 1.29
> btsco 0.41
>
> Bluetooth daemons are running, snd-bt-sco is loaded, hci0 is up, with the
> voice 0x0060 setting. The devices are paired successfully. I now run btsco -v
> A1:B2:C3:D4:E5:F6, and get the following response:
>
> btsco v0.41
> Device is 1:0
> Voice setting: 0x0060
> RFCOMM channel 1 connected
> recieved AT*ECBP=?
> recieved AT+CLIP=1
> recieved AT+CSCS="UTF-8"
> recieved AT+CLAN?
>
> In another terminal, I try aplay -B 1000000 -D plughw:Headset test.wav, and
> the following is added in the btsco terminal:
>
> i/o needed: connecting sco...
> Can't connect SCO audio channel
> : Connection refused
>
> I shut down btsco, and after nearly 30 seconds, I hear a single beep in the
> headset. I run btsco again as above, with the same initial response, and run
> aplay again. This time, the sound file plays through the headset, and btsco
> shows the following:
>
> i/o needed: connecting sco...
> connected SCO channel
> Done setting sco fd
> recieved AT+VGS=12
> Sending up speaker change 12
> speaker volume: 12 mic volume: 11
> driver is not in use
> disconnected SCO channel
> RFCOMM channel lost
>
> btsco then shuts itself down.
>
> All the above is consistently reproducable. Also, the same responses are seen
> if arecord is used instead of aplay, except of course that a file is recorded
> instead of played on the second attempt.
>
> About a year ago, I had the same headset working correctly with btsco and a
> 3Com BT PCMCIA card, which I unfortunately can no longer use.
>
> If more info is required - hcidump, logs, etc - let me know. I am aware that
> this is a dev list, so I will understand completely if nobody is interested.
>
> All the best
> Tom K.
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting language
> that extends applications into web and mobile media. Attend the live webcast
> and join the prime developer group breaking into this new coding territory!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> _______________________________________________
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> [email protected]
> https://lists.sourceforge.net/lists/listinfo/bluez-devel
>
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