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Old 08-30-2011, 06:58 AM   #1
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Registered: Jul 2011
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module uvcvideo does not exist in /proc/modules


I am getting this following error when i try to do
sudo rmmod uvcvideo
sudo insmod ./uvcvideo.ko

ERROR: Module uvcvideo does not exist in /proc/modules

I even tried sudo modprobe ./uvcvideo.ko

However I did grep and found that it is located in below location..
-rw-r--r-- 1 root root 80636 2011-04-08 19:36 /lib/modules/2.6.32-31-generic/kernel/drivers/media/video/uvc/uvcvideo.ko

Please help me in resolving this issue.

Thanks all...
Old 08-30-2011, 08:32 AM   #2
Registered: Apr 2010
Distribution: Fedora
Posts: 109
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What is the version of your kernel?
uname -a
Module information:
modinfo ./uvcvideo.ko
This happened coz you attempted to remove a non-existent module.
ERROR: Module uvcvideo does not exist in /proc/modules
You can't use 'modprobe' for a kernel module in your local location. Also '.ko' won't go with 'modprobe' command.
Old 08-31-2011, 12:55 AM   #3
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Registered: Jul 2011
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Thanks for replying. Please see the following output for the command you sent. Please suggest.

lucid@lucid-desktop:/$ uname -a
Linux lucid-desktop #1 PREEMPT Thu Jan 27 15:10:16 CST 2011 armv7l GNU/Linux

$ modinfo ./uvcvideo.ko
filename: ./uvcvideo.ko
version: v0.1.0
license: GPL
description: USB Video Class driver
author: Laurent Pinchart <>
srcversion: 0295E721CF7E98F38E079A9
alias: usb:v*p*d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v064EpA115d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v1C4Fp3000d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v19ABp1000d00*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v19ABp1000d01[0-1]*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v19ABp1000d012[0-6]dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v18ECp3288d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v18CDpCAFEd*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v1871p0306d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v17EFp480Bd*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v174Fp8A34d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v174Fp8A33d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v174Fp8A31d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v174Fp5931d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v174Fp5212d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v0E8Dp0004d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v0AC8p3420d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v0AC8p3410d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v0AC8p332Dd*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v05E3p0505d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v05ACp8501d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v058Fp3820d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v046Dp08C7d*dc*dsc*dp*icFFisc01ip00*
alias: usb:v046Dp08C6d*dc*dsc*dp*icFFisc01ip00*
alias: usb:v046Dp08C5d*dc*dsc*dp*icFFisc01ip00*
alias: usb:v046Dp08C3d*dc*dsc*dp*icFFisc01ip00*
alias: usb:v046Dp08C2d*dc*dsc*dp*icFFisc01ip00*
alias: usb:v046Dp08C1d*dc*dsc*dp*icFFisc01ip00*
alias: usb:v045Ep0723d*dc*dsc*dp*ic0Eisc01ip00*
alias: usb:v045Ep00F8d*dc*dsc*dp*ic0Eisc01ip00*
depends: videodev,v4l1-compat
vermagic: 2.6.32-21-generic SMP mod_unload modversions 586
parm: nodropon't drop incomplete frames (uint)
parm: quirks:Forced device quirks (uint)
parm: trace:Trace level bitmask (uint)
Old 08-31-2011, 01:05 AM   #4
Registered: Apr 2010
Distribution: Fedora
Posts: 109
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Hi -

To successfully load the module, version magic of the module, in your case
2.6.32-21-generic SMP mod_unload modversions 586
should match your kernel version ""

Had you tried
insmod ./uvcvideo.ko
and looked into last few lines of 'dmesg' output, you should have noticed some kernel warning.

insmod ./uvcvideo.ko
and paste the last few lines of the command
Old 08-31-2011, 02:02 AM   #5
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Registered: Jul 2011
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Thanks everyone I was able to run it now.
I saw #lsusb where the device was not getting recognized and later I mounted the device and then tried

sudo insmod ./uvcvideo.ko


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