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Need help: PAN settings with bluez-4.78

by hcsini / November 7, 2010 9:13 PM PST

Hi all,
I was using bluez-4.56 in an ARM based embedded product and was using PAN in NAP role. It was working fine.

Today I tried using bluez-4.78, with the same CONF files that I had been using. However, the NAP refuses to PAN connection from the remote BT device.

Before I go into details, I would like to just check if any of you guys also faced starting problems with PAN on bluez-4.78. Are there any basic setup changes that I need to do with bluez-4.78 as compared to bluez-4.56?

Any help is really appreciated.

HC Srinivasa

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Is it something to do with BLOCKED property?
by hcsini / November 8, 2010 1:17 PM PST

Is the PAN connection refusal in 4.78 something to do with the BLOCKED device property introduced from Bluez-4.65 onwards?

I see that a device property called 'blocked' is added from Bluez-4.65 onwards. Is the PAN connection refused by the NAP because of this? -- JUST GUESSING.
If so, how do I make the default property to be UNBLOCKED?

Some additional info: With the same setup SPP connections are working fine.


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PAN Changes in Bluez-4.69
by hcsini / November 8, 2010 10:29 PM PST


After some tracking I discovered that Bluez-4.67 works fine with the same setup as for Bluez-4.56. However, Bluez-4.69 FAILS!! Bluez-4.68 seems to have some problem wherein the Bluetooth adapters are not even seen by our FW.

So, something that changed for PAN between 4.67 and 4.69 seems to NOT work with the setup used for 4.67 and below. I see that NetworkServer is introduced in 4.69 onwards.

If any Bluez developers out there OR some experts in Bluez PAN settings, can you please provide some input as to how and what setup needs to be changed in Bluez-4.69 to make PAN profile work in NAP role?

Additional info:
In Bluez-4.67, our product publishes "Bluez GN Service", "Bluez-NAP Service", "Network Access Point" and "Serial Port" services.

The same product built with Bluez-4.69 publishes only "Network Access Point" and "Serial Port" services !! The BT device on my laptop fails to connect to the "Network Access Point" service.

Any help is really appreciated.

HC Srinivasa

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Sounds like bug
by GODhack / November 10, 2010 4:41 PM PST

You should report this in Bluez bugzilla. Or in #bluez on

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