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Message-ID: <v2x45cc95261003311251idfdc9b8anb7b2060618611d30@mail.gmail.com> Date: Wed, 31 Mar 2010 21:51:59 +0200 From: Mohamed Ikbel Boulabiar <boulabiar@...il.com> To: Laurent Pinchart <laurent.pinchart@...asonboard.com> Cc: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org Subject: Re: webcam problem after suspend/hibernate Hi, Do you mean the dmesg output ? A full dmesg is included in this address : http://pastebin.com/8XU619Uk Not in all suspend/hibernate the problem comes, only in some of them and this included dmesg output is just after a non working case of webcam fault. I also have found this in `/var/log/messages | grep uvcvideo` Mar 31 00:31:16 linux-l365 kernel: [399905.714743] usbcore: deregistering interface driver uvcvideo Mar 31 00:31:24 linux-l365 kernel: [399914.121386] uvcvideo: Found UVC 1.00 device LG Webcam (0c45:62c0) Mar 31 00:31:24 linux-l365 kernel: [399914.135661] usbcore: registered new interface driver uvcvideo and in `cat /proc/modules | grep uvcvideo` uvcvideo 65900 0 - Live 0xfa386000 videodev 39168 1 uvcvideo, Live 0xf8244000 v4l1_compat 16004 2 uvcvideo,videodev, Live 0xf822f000 And thanks in advance for you help. On Wed, Mar 31, 2010 at 1:25 AM, Laurent Pinchart <laurent.pinchart@...asonboard.com> wrote: > Hi Mohamed, > > On Tuesday 30 March 2010 23:55:38 Mohamed Ikbel Boulabiar wrote: >> Hi, >> >> After suspend/resume, I have my webcam no more working. >> The /dev/video0 file still exist, but the webcam won't be used until I do >> this : rmmod uvcvideo >> modprobe uvcvideo >> (2.6.31.8-0.1) >> >> This is may be caused by a bug somewhere. >> These are more information about my hardware : >> >> I have Microdia webcam >> `lsusb` >> Bus 001 Device 004: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera >> >> on openSUSE 11.2 `uname -a` >> Linux linux-l365 2.6.31.8-0.1-desktop #1 SMP PREEMPT 2009-12-15 >> 23:55:40 +0100 i686 i686 i386 GNU/Linux >> >> `hwinfo --usb` >> >> : USB 00.0: 0000 Unclassified device >> >> [Created at usb.122] >> UDI: >> /org/freedesktop/Hal/devices/usb_device_c45_62c0_1_3_2_1_7_if0_logicaldev_ >> input Unique ID: Uc5H.F0c0EBqBP10 >> Parent ID: k4bc.9T1GDCLyFd9 >> SysFS ID: /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4:1.0 >> SysFS BusID: 1-4:1.0 >> Hardware Class: unknown >> Model: "Microdia LG Webcam" >> Hotplug: USB >> Vendor: usb 0x0c45 "Microdia" >> Device: usb 0x62c0 "LG Webcam" >> Revision: "32.17" >> Serial ID: "1.3.2.1.7" >> Driver: "uvcvideo" >> Driver Modules: "uvcvideo" >> Device File: /dev/input/event8 >> Device Files: /dev/input/event8, /dev/char/13:72, >> /dev/input/by-id/usb-LG_Innotek_LG_Webcam_1.3.2.1.7-event-if00, >> /dev/input/by-path/pci-0000:00:1d.7-usb-0:4:1.0-event >> Device Number: char 13:72 >> Speed: 480 Mbps >> Module Alias: "usb:v0C45p62C0d3217dcEFdsc02dp01ic0Eisc01ip00" >> Driver Info #0: >> Driver Status: uvcvideo is active >> Driver Activation Cmd: "modprobe uvcvideo" >> Config Status: cfg=no, avail=yes, need=no, active=unknown >> Attached to: #4 (Hub) >> >> >> If there is a scenario you propose me to do to detect from where comes >> the problem, I can apply it. > > Could you please post the messages printed by the uvcvideo driver and USB core > to the kernel log when you suspend and resume your system ? Thanks. > > -- > Regards, > > Laurent Pinchart > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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