From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964943AbWACVh5 (ORCPT ); Tue, 3 Jan 2006 16:37:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964941AbWACVh5 (ORCPT ); Tue, 3 Jan 2006 16:37:57 -0500 Received: from defout.telus.net ([204.209.205.55]:59832 "EHLO priv-edmwes48.telusplanet.net") by vger.kernel.org with ESMTP id S964943AbWACVhz (ORCPT ); Tue, 3 Jan 2006 16:37:55 -0500 From: Rob Dyck To: linux-kernel@vger.kernel.org Subject: Problem: USB phone not detected after disconnect/reconnect Date: Tue, 3 Jan 2006 13:37:52 -0800 User-Agent: KMail/1.7 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200601031337.52560.rob.dyck@telus.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org When USB phone is disconnected and then reconnected the system sometimes does not detect it. Another device such as storage is not detected either. I am not positive but the problem seems to occur if the USB phone was connected during the boot. I do not know if it is relevant but I use APM not ACPI. Some information I have gathered. This is the device usb 3-1: new device strings: Mfr=1, Product=2, SerialNumber=4 usb 3-1: Product: USB Phone usb 3-1: Manufacturer: BeyondTel usb 3-1: SerialNumber: 0001 Good disconnect. Four interfaces unregistered. usb 3-1: USB disconnect, address 7 usb 3-1: usb_disable_device nuking all URBs usb 3-1: unregistering interface 3-1:1.0 usb 3-1:1.0: hotplug usb 3-1: unregistering interface 3-1:1.1 usb 3-1:1.1: hotplug usb 3-1: unregistering interface 3-1:1.2 usb 3-1:1.2: hotplug usb 3-1: unregistering interface 3-1:1.3 drivers/usb/core/file.c: removing 96 minor usb 3-1:1.3: hotplug usb 3-1: unregistering device usb 3-1: hotplug hub 3-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x100 uhci_hcd 0000:00:10.1: suspend_rh (auto-stop) Bad disconnect. interfaces 1.1 1.2 and 1.3 not unregistered usb 3-1: USB disconnect, address 2 usb 3-1: usb_disable_device nuking all URBs usb 3-1: unregistering interface 3-1:1.0 uhci_hcd 0000:00:10.1: suspend_rh (auto-stop) Also /var/log/hotplug/events shows that the OSS audio devices were removed on disconnect but the ALSA devices were not. The problem is not specific to 2.6.15 however I do not know when it started. Perhaps it has always been a problem in USB. Linux fatboy.mylan 2.6.15 #1 PREEMPT Tue Jan 3 11:49:30 PST 2006 i686 athlon i386 GNU/Linux Gnu C 3.4.2 Gnu make 3.80 binutils 2.15.92.0.2 util-linux 2.12a mount 2.12a module-init-tools 3.1-pre5 e2fsprogs 1.35 reiserfsprogs line reiser4progs line pcmcia-cs 3.2.7 quota-tools 3.12. PPP 2.4.2 isdn4k-utils 3.3 nfs-utils 1.0.6 Linux C Library 2.3.3 Dynamic linker (ldd) 2.3.3 Procps 3.2.3 Net-tools 1.60 Kbd 1.12 Sh-utils 5.2.1 udev 075 Modules Loaded parport_pc lp parport autofs4 nfs lockd sunrpc af_packet usbhid uhci_hcd ehci_hcd snd_via82xx snd_ac97_codec snd_ac97_bus snd_mpu401_uart snd_usb_audio snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_usb_lib snd_rawmidi snd_hwdep snd soundcore Keywords - USB, hotplug Output of lspci 00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge 00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge 00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50) 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74) 01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15) lsusb just hangs.