quickcam on 2.6.11 - driver issue

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Date: Sun, 31 Jul 2005 19:39:39 +0200
To: debian-user@lists.debian.org

Hi,

I got some issues getting my Logitech Quickcam (USB) to run on kernel
2.6.11-1-686 (Dell Inspiron 8200 laptop).

What I found so far : lsusb returns the following :
Bus 002 Device 003: ID 046d:0850 Logitech, Inc. QuickCam Web

I looked this up - and apparently this is supported through the qc
module over at
http://qce-ga.sourceforge.net/

I grabbed the source, and tried to run ./quickcam.sh - which started up
a small interface that allowed me to quit or continue if I was sure. The
following then popped up :

    /gcc version: gcc version 4.0.2 20050725 (prerelease) (Debian 4.0.1-3)/
    /gcc version: gcc version 4.0.2 20050725 (prerelease) (Debian 4.0.1-3)/
    /Make version: GNU Make 3.80/
    /Linker version: GNU ld version 2.16.1 Debian GNU/Linux/
    /Kernel compiler: gcc version 3.3.6 (Debian 1:3.3.6-6)/
    /[!] Kernel compiler and gcc seem to be different versions./
    /Instead, they should be the same. If you have many compilers/
    /installed, you can specify the correct one with command (in bash)/
    / export CC=kgcc/
    /before trying to install the driver. Replace kgcc with the command/
    /required for compiling kernels (kgcc is often used in Red Hat
    systems)./
    /WARNING: If you press Enter, I'll try to continue anyway,/
    /but this probably will fail. You SHOULD press Ctrl+C now./
    /Press Ctrl+C to quit, Enter to continue --->/

And then - after a few other Enters (for information purposes on my
system) :

    /Kernel source directory: /lib/modules/2.6.11-1-686/build/
    /Detected kernel version is 2.6.x./
    /Kernel version name: 2.6.11-1-686/
    /Kernel source version code: 132619/
    /Driver file name: quickcam.ko/
    /Module install directory: /lib/modules/2.6.11-1-686/
    /Driver source directory (PWD): /usr/src/modules/qc-usb-source/
    /Kernel source directory (LINUX_DIR): /lib/modules/2.6.11-1-686/build/
    /Module install directory (MODULE_DIR): /lib/modules/2.6.11-1-686/
    /Utility install directory (PREFIX): /usr/local/
    /User options (USER_OPT):/
    /Driver file name (use with insmod): quickcam.ko/
    /Kernel version code: 132619/

Then the important part - where stuff goes wrong -- this happens after
the script starts to try to compile the driver :

    /*** Warning: "cleanup_module"
    [/usr/src/modules/qc-usb-source/quickcam.ko] undefined!/
    /*** Warning: "init_module"
    [/usr/src/modules/qc-usb-source/quickcam.ko] undefined!/
    / gcc -Wp,-MD,/usr/src/modules/qc-usb-source/.quickcam.mod.o.d
    -nostdinc -isystem /usr/lib/gcc/i486-linux-gnu/4.0.2/include
    -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs
    -fno-strict-aliasing -fno-common -ffreestanding -O2
    -fomit-frame-pointer -pipe -msoft-float -mpreferred-stack-boundary=2
    -fno-unit-at-a-time -march=i686 -Iinclude/asm-i386/mach-default
    -Wdeclaration-after-statement -Wno-pointer-sign
    -DKBUILD_BASENAME=quickcam -DKBUILD_MODNAME=quickcam -DMODULE -c -o
    /usr/src/modules/qc-usb-source/quickcam.mod.o
    /usr/src/modules/qc-usb-source/quickcam.mod.c ld -m elf_i386 -r -o
    /usr/src/modules/qc-usb-source/quickcam.ko
    /usr/src/modules/qc-usb-source/quickcam.o
    /usr/src/modules/qc-usb-source/quickcam.mod.o/
    /make[1]: Leaving directory `/usr/src/kernel-headers-2.6.11-1-686'/
    /gcc -Wall -O2 -s qcset.c -o qcset -lm/
    /qcset.c: In function 'pnm_open':/
    /qcset.c:390: warning: pointer targets in passing argument 1 of
    'fopen' differ in signedness/
    /qcset.c: In function 'main':/
    /qcset.c:661: warning: pointer targets in passing argument 1 of
    'pnm_open' differ in signedness/
    /-rw-r--r-- 1 root root 92085 2005-07-31 19:28 quickcam.ko/

After some more Enters - when trying to load the driver :

    /You decided to do it, here we go.../
    /insmod: error inserting './quickcam.ko': -1 Invalid module format/
    /=== Leaving root mode ===/
    /quickcam: version magic '2.6.11-1-686 686 gcc-4.0' should be
    '2.6.11-1-686 686 gcc-3.3'/
    /[!] The QuickCam driver failed to load!/
    /If you saw any special error messages, like about/
    /unresolved symbols, tell about them when asking for help./
    /WARNING: If you press Enter, I'll try to continue anyway,/
    /but this probably will fail. You SHOULD press Ctrl+C now./
    /Press Ctrl+C to quit, Enter to continue --->/

After this - the message

    /quickcam: version magic '2.6.11-1-686 686 gcc-4.0' should be
    '2.6.11-1-686 686 gcc-3.3'/

keeps on returning on each step.

So - to recapitulate :
1. The driver should be able to handle my type of webcam (based on chipset)
2. The source is OK - as it detects the correct USB cam through the script
3. Apparently - there is something wrong with the gcc version, as it
goes wrong with compiling the driver / module - based on output above.

I had some threads to chew on in the archives - but they were referring
to older kernels, or to problems with /dev/video - which I was able to
solve by installing xawtv.

I can give some dmesg output as well - when plugging in the cam in
question in USB :

    /quickcam: version magic '2.6.11-1-686 686 gcc-4.0' should be
    '2.6.11-1-686 686 gcc-3.3'/

Anybody got any ideas ?
I'm rather noob at compiling things myself - more the manual type of
person, but any help or reading material would be greatly appreciated.

Thanks in advance :)

Frank

-- 
================================================
Frank Guthorel
T : 09/329.49.38 - G : 0495/105.776
mailto:frank@codedor.be - http://www.codedor.be
================================================

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