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Date:	Mon, 7 Feb 2011 19:20:21 -0500
From:	Ed Tomlinson <edt@....ca>
To:	Oliver Neukum <oneukum@...e.de>
Cc:	linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: [BUG] usb problems in .38-rc3+

On Monday 07 February 2011 04:09:51 Oliver Neukum wrote:
> Am Samstag, 5. Februar 2011, 20:17:57 schrieb Ed Tomlinson:
> > Hi,
> > 
> > My bluetooth usb dongle has stopped working in .38-rc3+
> > 
> > Bus 002 Device 008: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
> > 
> > and in dmesg
> > 
> > [108495.369056] usb 5-1: new full speed USB device using ohci_hcd and address 3
> > [108495.573077] usb 5-1: New USB device found, idVendor=0a12, idProduct=0001
> > [108495.580099] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> > [108652.971977] usb 5-1: USB disconnect, address 3
> > [108652.972718] btusb_bulk_complete: hci0 urb ffff8800684e99c0 failed to resubmit (19)
> > [108652.973725] btusb_bulk_complete: hci0 urb ffff8800684e9c00 failed to resubmit (19)
> > [108652.974707] btusb_intr_complete: hci0 urb ffff8800684e9840 failed to resubmit (19)
> > [108653.001690] btusb_send_frame: hci0 urb ffff8800bb42a240 submission failed
> > [108657.007541] usb 2-4.7: new full speed USB device using ehci_hcd and address 8
> > [108657.147736] usb 2-4.7: New USB device found, idVendor=0a12, idProduct=0001
> > [108657.154954] usb 2-4.7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> > 
> > Its been working for years here.
> > 
> > Any ideas on what to try or additional info to gather?
> 
> Please test what happens if you disable runtime power management.

After a pointer from Oliver I booted with usbcore.autosuspend=30000 and verified the device used
the parm via /sys/bus...   Still did not work.  Bisect or are there some other things to try?

Thanks
Ed
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