Subject: Re: [Bluez-devel] Problems with USB 2.0 hub and ehci_usb/hci_usb
From: Marcel Holtmann <marcel@holtmann.org>
To: bluez-devel@lists.sourceforge.net
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Date: Mon, 20 Feb 2006 21:38:59 +0100

Hi Herman,

> I hope one of you can help me... I am trying to use a USB 2.0 bluetooth 
> dongle (Belkin F8T012) through a USB 2.0 hub. The problem I have is that 
> whenever I insert the BT dongle the kernel reports the following error:
> 
> hci_usb_intr_rx_submit: hci- intr rx submit failed urb df265514 err -28
> 
> I have seen a conversation in which Marcel participated on the linux 
> kernel mailing lists which referred to a similar problem, but the 
> discussion was never really finished so no solution was given (see 
> http://lkml.org/lkml/2004/8/20/62). The problem seems to appear only 
> when using the ehci_hcd USB module. Because when I use the uhci_hcd 
> module (by rmmod ehci_hcd) it works. Does anyone have any idea what the 
> source of this problem is and how I might be able to solve it?

and again this seems to be an USB issue and not a Bluetooth issue. Take
it up with the USB guys and make sure you run the latest 2.6 kernel.

Regards

Marcel


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