----- Original Message ---- From: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> To: Shreesh Holla <hshreesh@xxxxxxxxx> Cc: linux-bluetooth@xxxxxxxxxxxxxxx Sent: Tue, August 24, 2010 8:00:11 PM Subject: Re: [RFCOMM] Cannot complete connections into Ubuntu Hi, On Mon, Aug 23, 2010 at 3:22 AM, Shreesh Holla <hshreesh@xxxxxxxxx> wrote: > Hi, > > I'm running Ubuntu with 2.6.32.24 kernel. > I have a simple RFCOMM program running on Windows Mobile which would connect > into the Ubuntu machine. Of course I have the corresponding service running on > the Ubuntu machine. The RFCOMM port numbers do match up. > > This was working a few days back and now with no changes(i.e. the same > executable), it refuses to work anymore. > > So is there some configuration needed now? > > I have the dongle running in Ubuntu as : hciconfig hci0 noauth noencrypt pscan ------ Luis says: >>Had you tried the latest bluez, I did some changes to pair that solve >>some problem with RFCOMM and ssp. If that doesn't help maybe you >>should try to produce some logs of the so we can take a look. >>Regards, >>-- >>Luiz Augusto von Dentz >>Computer Engineer Luis, It seems the problem is in aborting an open RFCOMM connection. And this seems to be an issue even with the 2.6.29 kernel. If I do abort a connection i.e. not gracefully i.e. by killing the applications then this is what I see: - The connection is refused until reboot - I tried to reset by doing a hciconfig hci0 reset AND also hciconfig hci0 up/down - When I do a reset actually the VM hangs completely i.e. the only way is to power off and restart the VM - I do have two Bluetooth dongles - but I dont think that could be any issue. So, fundamentally as long as I do a graceful shutdown of the RFCOMM connections all seems to be fine. This issue happens sometimes on the first abort. But definitely within three attempts. This is what I have been able to figure out since my last e-mail. Do let me know if this helps. If you would need more details such as the hcidump logs or dmesg logs - I ca send that too. Thanks, Shreesh -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
