Re: [Bluez-devel] kernel: hci_scodata_packet: hci1 SCO packet for unknown connection handle 0

[Stefan Seyfried <seife@suse.de>]

Hi,

On Tue, Jul 11, 2006 at 03:46:31PM +0200, Marcel Holtmann wrote:
> Hi Stefan,
 =

> actually with isco=3D1 the SCO transfers are still on, but limited to
> 8-bit instead of 16-bit with isoc=3D2. So if you have isoc=3D2 it fills up
> your syslog. Can you extract some of these SCO packets with hcidump for
> me.

ok, it looks like this (hoping that i invoked hcidump correctly, i am still
learning this bluetooth thingy :-):

root@strolchi:~# hcidump -i hci1
HCI sniffer - Bluetooth packet analyzer ver 1.29
device: hci1 snap_len: 1028 filter: 0xffffffff
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0
> SCO data: handle 0 dlen 0

This happens immediately after plugging the thing in, there is no pairing
or any application involved that might trigger this AFAICT.

> My problem is now that I can only fully blacklist the SCO support for
> this dongle. I can't force the Bluetooth core into using 8-bit only.

Maybe i should try if SCO works at all with this thing :-)
 =

> Any chance of a name or identification of this dongle?

It is an Abe UB20S, http://www.abe-hk.com/english/products/ub12-22/ub12-22.=
htm
The FCC ID is NV6-CS8024.
It is sold e.g. by conrad.com in germany and pretty cheap (around 10 Euro),
and it is pretty small (this is why i bought it, i can leave it plugged in
when putting the notebook into the bag :-)
-- =

Stefan Seyfried                  \ "I didn't want to write for pay. I
QA / R&D Team Mobile Devices      \ wanted to be paid for what I write."
SUSE LINUX Products GmbH, N=FCrnberg \                    -- Leonard Cohen


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