[2.6.24] bcm203x bluetooth dongle does not work

[2.6.24] bcm203x bluetooth dongle does not work

[Florian Lohoff]

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Hi,

after trying around with my ancient bcm2033 bluetooth dongle i found it
not working in 2.6.24 - I debugged udev and found it loading the
firmware correctly but the device seems to have problems disconnecting.

I found an Ubuntu bug which mentions a patch which supposed to be
2.6.20 material. It still applies and fixes my problem:

Ubuntu Bug:
	https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/85247

Patch:
	http://launchpadlibrarian.net/7058766/bcm203x-2.6.20-backport.diff

So it seems this patch never went in but most likely should.

Flo
-- 
Florian Lohoff                  flo@rfc822.org             +49-171-2280134
	Those who would give up a little freedom to get a little 
          security shall soon have neither - Benjamin Franklin

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Re: [2.6.24] bcm203x bluetooth dongle does not work

[Marcel Holtmann]

Hi Florian,

> after trying around with my ancient bcm2033 bluetooth dongle i found it
> not working in 2.6.24 - I debugged udev and found it loading the
> firmware correctly but the device seems to have problems disconnecting.
> 
> I found an Ubuntu bug which mentions a patch which supposed to be
> 2.6.20 material. It still applies and fixes my problem:
> 
> Ubuntu Bug:
> 	https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/85247
> 
> Patch:
> 	http://launchpadlibrarian.net/7058766/bcm203x-2.6.20-backport.diff
> 
> So it seems this patch never went in but most likely should.

we moved away from using a timer and using a workqueue now. It wrote the
patch to use a workqueue and tested that it works. Starting with 2.6.19
we the usage of a workqueue is default. Can you verify that non of the
kernels 2.6.19-2.6.23 are working. We might have missed a change inside
the USB subsystem within the 2.6.24 timeframe.

Regards

Marcel

Re: [2.6.24] bcm203x bluetooth dongle does not work

[Florian Lohoff]

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On Wed, Jan 30, 2008 at 06:33:52PM +0100, Marcel Holtmann wrote:
> we moved away from using a timer and using a workqueue now. It wrote the
> patch to use a workqueue and tested that it works. Starting with 2.6.19
> we the usage of a workqueue is default. Can you verify that non of the
> kernels 2.6.19-2.6.23 are working. We might have missed a change inside
> the USB subsystem within the 2.6.24 timeframe.

My tests were on 2.6.24 which does not work as described. Newer
kernels dont boot due to crash in ide-cd so i cant test ...

Flo
-- 
Florian Lohoff                  flo@rfc822.org             +49-171-2280134
	Those who would give up a little freedom to get a little 
          security shall soon have neither - Benjamin Franklin

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Re: [2.6.24] bcm203x bluetooth dongle does not work

[Florian Lohoff]

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Hi,

On Wed, Jan 30, 2008 at 06:33:52PM +0100, Marcel Holtmann wrote:
> we moved away from using a timer and using a workqueue now. It wrote the
> patch to use a workqueue and tested that it works. Starting with 2.6.19
> we the usage of a workqueue is default. Can you verify that non of the
> kernels 2.6.19-2.6.23 are working. We might have missed a change inside
> the USB subsystem within the 2.6.24 timeframe.

I went through the kernels i still have on this box (FSC LifeBook E8110) 
and here are the results. Except the debian 2.6.18-5-686 no newer kernel 
works. The onboard bluetooth works like a charm always whereas the
bcm203x simply does not reconnect after loading firmware from 2.6.19 on.

	2.6.18-5-686 (debian)	works
	2.6.19			breaks
	2.6.21-rc5		breaks
	2.6.22-rc5		breaks
	2.6.22-2-686 (debian)	breaks
	2.6.23-1-686 (debian)	breaks
	2.6.24			breaks

It basically looks always like this:

	<insert>
		usb 1-1: new full speed USB device using uhci_hcd and address 2
		usb 1-1: configuration #1 chosen from 1 choice
		Bluetooth: Broadcom Blutonium firmware driver ver 1.1
		usbcore: registered new interface driver bcm203x
	<wait for 30 seconds - then pull>
		bcm203x_complete: URB failed with status -84
		usb 1-1: USB disconnect, address 2

Flo
-- 
Florian Lohoff                  flo@rfc822.org             +49-171-2280134
	Those who would give up a little freedom to get a little 
          security shall soon have neither - Benjamin Franklin

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