Re: Cannot compile gspca

2009-02-07 Thread Brad Sawatzky 
On Sat, 07 Feb 2009, Sridhar M.A. wrote:

 I have installed linux-image-2.6.28-1-686 from the kernel trunk and the
 corresponding header files (after building linux-kbuild from source).
 Everything works fine except my webcam. The webcam works perfectly under
 the kernel 2.6.26-1-686 from debian/testing. 
 
 I have downloaded the gspca-source and when I try to compile, I get the
 following error (tried make as well as m-a) :
[ . . . ]

The gspca driver is merged into the mainline kernel for 2.6.27 and up.  Use
'make xconfig' to enable it, delete /usr/src/modules/gspca/ if it exists,
then rebuild and install the kernel package.

There is an API change though[*].  You'll need to install the 'libv4l-0'
compatibility package (backport if you're running etch) and use the
following wrapper:

--  cut here ---
#! /bin/bash
# Needed for gspca in kernel 2.6.27 and up
#   See http://moinejf.free.fr/gspca_README.txt
# This requires the libv4l-0 debian package (which contains the compat lib
# below).

exe=`basename $0`
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so /usr/bin/${exe}
--  cut here ---

Save the script as $HOME/bin/fix_webcam_app and then symlink your webcam
programs to it.  For example
 % ln -s $HOME/bin/fix_webcam_app $HOME/bin/effectv
 % ln -s $HOME/bin/fix_webcam_app $HOME/bin/camstream
or whatever.  (The script obviously assumes the original binary lies in
/usr/bin/ and will fail, modify to taste.)

[*] I still run Debian Etch.  Maybe everything has been recompiled for the
new API and works out of the box with Lenny?  YMMV.

-- Brad


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Re: Cannot compile gspca

2009-02-07 Thread Sridhar M.A. 
On Sat, Feb 07, 2009 at 04:18:13AM -0500, Brad Sawatzky wrote:

The gspca driver is merged into the mainline kernel for 2.6.27 and up.  Use
'make xconfig' to enable it, delete /usr/src/modules/gspca/ if it exists,
then rebuild and install the kernel package.

The gspca drivers included in the kernel do not function. I tried them
first and only after it failed did I try the gspca-source. 

#   See http://moinejf.free.fr/gspca_README.txt

In fact I have even tried compiling the stuff from

  http://linuxtv.org/hg/~jfrancois/gspca

as mentioned in the above README. It did not work. I suspect some
forgotten steps from my side. I will try again and post back.

Thanks for your reply.

Regards,

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Cannot compile gspca

2009-02-06 Thread Sridhar M.A. 
Hello,

I have installed linux-image-2.6.28-1-686 from the kernel trunk and the
corresponding header files (after building linux-kbuild from source).
Everything works fine except my webcam. The webcam works perfectly under
the kernel 2.6.26-1-686 from debian/testing. 

I have downloaded the gspca-source and when I try to compile, I get the
following error (tried make as well as m-a) :

make -C /lib/modules/`uname -r`/build SUBDIRS=/usr/src/modules/gspca
CC=cc modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.28-1-686'
  CC [M]  /usr/src/modules/gspca/gspca_core.o
  /usr/src/modules/gspca/gspca_core.c:54:27: error: asm/semaphore.h: No
  such file or directory
  /usr/src/modules/gspca/gspca_core.c: In function ‘spca5xx_ioctl’:
  /usr/src/modules/gspca/gspca_core.c:2463: error: implicit declaration
  of function ‘video_usercopy’
  /usr/src/modules/gspca/gspca_core.c: At top level:
  /usr/src/modules/gspca/gspca_core.c:2609: error: unknown field ‘owner’
  specified in initializer
  /usr/src/modules/gspca/gspca_core.c:2609: warning: initialization from
  incompatible pointer type
  /usr/src/modules/gspca/gspca_core.c:2611: error: unknown field ‘type’
  specified in initializer
  /usr/src/modules/gspca/gspca_core.c: In function
  ‘spca50x_create_sysfs’:
  /usr/src/modules/gspca/gspca_core.c:2769: error: implicit declaration
  of function ‘video_device_create_file’
  /usr/src/modules/gspca/gspca_core.c:2780: error: implicit declaration
  of function ‘video_device_remove_file’
  /usr/src/modules/gspca/gspca_core.c: In function ‘spca5xx_probe’:
  /usr/src/modules/gspca/gspca_core.c:4301: error: incompatible types in
  assignment
  make[2]: *** [/usr/src/modules/gspca/gspca_core.o] Error 1
  make[1]: *** [_module_/usr/src/modules/gspca] Error 2
  make[1]: Leaving directory `/usr/src/linux-headers-2.6.28-1-686'
  make: *** [default] Error 2

Anybody has a fix for this or any pointers?

Regards,

-- 
Sridhar M.A. GPG KeyID : F6A35935
  Fingerprint: D172 22C4 7CDC D9CD 62B5  55C1 2A69 D5D8 F6A3 5935

Practice yourself what you preach.
-- Titus Maccius Plautus


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