Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755002Ab1DBPpA (ORCPT ); Sat, 2 Apr 2011 11:45:00 -0400 Received: from mail-ww0-f44.google.com ([74.125.82.44]:36745 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753163Ab1DBPo5 convert rfc822-to-8bit (ORCPT ); Sat, 2 Apr 2011 11:44:57 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:x-mailer:mime-version:content-type :content-transfer-encoding; b=jryahSb4J7yJq21y5xOjjZ9VdIfqyzWZ5rL+9c1DlAgqloQaqH50FpVYA3fTzGq388 7s5QZoQhOOj9X4zGIbH/jTMck1eNTTXt2CIci/nO++uuA44z33UjB0Yv2iTB08eRnyuy uvIeiLR6hE9eCpAKlB8pRO60oQzC5LvwFXHQg= Date: Sat, 2 Apr 2011 18:44:50 +0300 From: Mihai =?UTF-8?B?RG9uyJt1?= To: "Joey Lee" Cc: , , , , Subject: Re: [b43] usb device disconnects automatically after 1s Message-ID: <20110402184450.2ef19d7b@mdontu-dell> In-Reply-To: <4D81FA730200002300029F0F@novprvlin0050.provo.novell.com> References: <201103170018.32061.mihai.dontu@gmail.com> <201103170022.24290.mihai.dontu@gmail.com> <201103170106.58746.mihai.dontu@gmail.com> <4D81FA730200002300029F0F@novprvlin0050.provo.novell.com> Organization: Home X-Mailer: Claws Mail 3.7.8 (GTK+ 2.24.3; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3122 Lines: 89 On Wed, 16 Mar 2011 19:11:31 -0600 "Joey Lee" wrote: > Add Cc. to platform driver guys. > > 於 四，2011-03-17 於 01:06 +0200，Mihai Donțu 提到： > > On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > > > 2011/3/16 Mihai Donțu : > > > > 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. Today I had some time on my hands and decided to get this working. Which I did. So the difference between 2.6.37 and 2.6.38 is that now I have to invoke rfkill to enable my wireless device, because pressing Fn + F2 toggles the hard and soft lock states of the device _but_ only to 'yes'. Pressing the key combination again will only remove the hard lock. On 2.6.37 it would remove both. For example: On 2.6.37: # rfkill list 0 # wifi disabled 0: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: yes # rfkill list 0 # wifi enabled (via Fn + F2) 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no (rfkill events) 1301758599.537508: idx 0 type 1 op 2 soft 0 hard 0 1301758600.561087: idx 2 type 1 op 2 soft 0 hard 0 On 2.6.38: # rfkill list 0 # wifi disabled 0: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: yes # rfkill list 0 # wifi enabled (via Fn + F2) 0: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: no (rfkill events) 1301758830.251541: idx 0 type 1 op 2 soft 1 hard 0 Is there supposed to be a piece of software that listens for these events and toggles the soft state whenever the hard state changes? Thanks, -- Mihai Donțu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/