Re: RFCOMM connection lag (slow)

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Hi Nils,

On Sun, 2011-07-24 at 12:22 -0400, Nils Faerber wrote:
> Hi!
> I recently found a strange behaviour...
...
> But as soon as larger chunks of data are sent (something like 128 bytes
> at a time) it starts to take a pretty long time to transfer it (in the
> range of about a second). The connection stays connected and data can be
> sent but at a very slow pace.
> This is from a 2.6.39 kernel to the device, my PC has a Bluetooth3.0 USB
> device.
....
> It is pretty likely that the device also has an RFCOMM bug here but
> since it works with the HTC phone it must be possible to make it work
> with my notebook too.
> 
> Any hint would be very much appreciated ;)

1. What does an hcidump -tX of the session say?
2. What flow control is being used?
3. What does the log say when bluetoothd is in debug mode?

That's where I would start...

Regards,
Peter
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