linux-kernel - Re: [b43] usb device disconnects automatically after 1s

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Date:	Thu, 17 Mar 2011 01:06:58 +0200
From:	Mihai Donțu <mihai.dontu@...il.com>
To:	Rafał Miłecki <zajec5@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-wireless@...r.kernel.org
Subject: Re: [b43] usb device disconnects automatically after 1s

On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote:
> 2011/3/16 Mihai Donțu <mihai.dontu@...il.com>:
> > Added linux-usb and linux-wireless to CC.
> > 
> > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
> >> Hi,
> >> 
> >> I have just upgraded to 2.6.38 and discovered that I can't use my
> >> wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth
> >> led lights and after a second it turns off by itself. In dmesg I'm
> >> seeing the following:
> >> 
> >> [   88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
> >> address 5
> >> [   88.782330] usb 1-2.2: USB disconnect, address 5
> >> 
> >> I switched to 2.6.37 until I'll have some time to bisect this. In the
> >> mean time I have attached the output of lspci, interrupts and dmesg.
> 
> I suspect it's WMI related. What is your machine?

It's a Dell Latitude D520 but I can't find a link with full specs (in 
English).

> Please check:
> https://bugzilla.kernel.org/show_bug.cgi?id=31002
> http://comments.gmane.org/gmane.linux.acpi.devel/49577
> 
> I can't help you more, I just noticed such a issue reported on ACPI
> ML, you have to dig into this yourself (or someone else may help you).

Thanks for the links. I'll see if I can get anywhere from there.

-- 
Mihai Donțu
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