Hi,
These days I tried to write one RFCOMM socket server that reads input
from a JSR82 client running on a phone but failed. My server program
runs on a Ubuntu gutsy distribution. This server registers a service
with a unique UUID and client looks for this service and send some
string request to server once found and then server sends back some
string data response to client. That's it.
>>From both log of JSR82 client and hcidump output in linux host, I can
see this service is successfully found and a successful connection is
setup between linux host and phone. This successful connection can also
be verified by both "hcitool con" and "l2ping". l2ping means L2CAP layer
communication is good, I think. The accept() of this server is
succesful, as well. But at same time, read() with sockid returned by
accept() just blocks, and hcidump output shows that no data is read
from low level host interface.
Another info that might be useful is that I also wrote a bluez C client
with RFCOMM socket that does same thing as JSR82 client. The blueZ C
client runs in the other linux machine. The result is perfectly good,
with everything going very smooth as expected. Noticeably, this
linux-linux successful communication doesn't require any pin
input/pairing process. That's a bit strange.
Any help or info is extremely appreciated. Thanks to bluez and linux and
all people here.
-Peter
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Peter,
which phone are you using? I know, that Siemens S65 (very old i know)
can not establish a connection to bluez without pin request.
I did your job several times, so if you want, post your C and midp code,
(only relevant connection code) i will have a look on it
kind regards
david
Zhu, Peter J schrieb:
> Hi Vlad
>
> Firstly thank you so much for giving this useful infomation. Yes, I
> tested it between MIDlet running on phone and that MIDlet running on
> desktop. Runs very well. But that's between two JSR82 applications
> rather than between a JSR82 and a C application utilizing bluez. Do you
> have such case in hand so that I can test? Thank you again.
>
> Peter
>
> Vlad Skarzhevskyy wrote:
>> Hi Peter
>> We at bluecove.org constantly testing connections from JSR-82 on top
>> of BlueZ on Linux to client on Mobile phone L2CAP or RFCOMM and back.
>> No problems detected in BlueZ.
>> Make sure you are connecting to right service!
>>
>> Look at this application as test
>> http://snapshot.bluecove.org/bluecove-examples/bluecove-tester/ it
>> runs on Linux and the MIDLet version can be installed on the phone.
>>
>> --
>> Vlad
>
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Hi Vlad
Firstly thank you so much for giving this useful infomation. Yes, I
tested it between MIDlet running on phone and that MIDlet running on
desktop. Runs very well. But that's between two JSR82 applications
rather than between a JSR82 and a C application utilizing bluez. Do you
have such case in hand so that I can test? Thank you again.
Peter
Vlad Skarzhevskyy wrote:
> Hi Peter
> We at bluecove.org constantly testing connections from JSR-82 on top
> of BlueZ on Linux to client on Mobile phone L2CAP or RFCOMM and back.
> No problems detected in BlueZ.
> Make sure you are connecting to right service!
>
> Look at this application as test
> http://snapshot.bluecove.org/bluecove-examples/bluecove-tester/ it
> runs on Linux and the MIDLet version can be installed on the phone.
>
> --
> Vlad
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Hi Peter
We at bluecove.org constantly testing connections from JSR-82 on top
of BlueZ on Linux to client on Mobile phone L2CAP or RFCOMM and back.
No problems detected in BlueZ.
Make sure you are connecting to right service!
Look at this application as test
http://snapshot.bluecove.org/bluecove-examples/bluecove-tester/ it
runs on Linux and the MIDLet version can be installed on the phone.
--
Vlad
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