[ILUG] webcam compilation woes

[Conor Wynne]

Hi all,

I'm having trouble getting my webcam working under linux. 
Its a logitech webcam sphere and its "supported" under kernel 2.6
http://www.smcc.demon.nl/webcam/

I have the pwc module built succesfully (2.6.4 & 2.6.7) but it appears
that thats not enough. dmesg tells me (when I try using gnomemeeting for
example):

"pwc Video mode SIF at 10 fps is only supported with the decompressor
module (pwcx).
pwc pwc_set_video_mode attempt 1 failed."

which results in a "cannot open video device" error. 

So I need the pwcx module aswell:
http://www.smcc.demon.nl/webcam/release.html#pwcx
"For kernel 2.6.7 and higher, you must use PWCX 9"

(I tried 2.6.7 unsuccessfully - the following was from 2.6.4)
OK lets go:

cd /usr/src/linux 

patch -p1 -s < /home/daddy/Documents/sources/pwcx-9.0/patch-2.6.4

cp -v /home/daddy/Documents/sources/pwcx-9.0/mipsel/libpwcx-mips4.a
drivers/usb/media/libpwcx.a

cp -v /home/daddy/Documents/sources/pwcx-9.0/pwcx/*.[ch]
drivers/usb/media

I copied the .config from 2.6.7 to 2.6.4 and...

make oldconfig 
make

Bork Bork Bork :(

drivers/usb/media/pwc-if.c: In function `usb_pwc_probe':
drivers/usb/media/pwc-if.c:1855: warning: assignment from incompatible
pointer type
drivers/usb/media/pwc-if.c: In function `pwc_video_release':
drivers/usb/media/pwc-if.c:1124: warning: control reaches end of
non-void function
  CC [M]  drivers/usb/media/pwc-misc.o
  CC [M]  drivers/usb/media/pwc-ctrl.o
  CC [M]  drivers/usb/media/pwc-uncompress.o
  CC [M]  drivers/usb/media/pwcx-glue.o
drivers/usb/media/pwcx-glue.c:56: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:65: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:78: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:87: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:96: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:109: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:118: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:127: warning: initialization from
incompatible pointer type
drivers/usb/media/pwcx-glue.c:136: warning: initialization from
incompatible pointer type
  LD [M]  drivers/usb/media/pwc.o
  LD [M]  drivers/usb/media/pwcx.o
ld: Relocatable linking with relocations from format elf32-little
(drivers/usb/media/libpwcx.a(pwc-dec1.o)) to format elf32-i386
(drivers/usb/media/pwcx.o) is not supported
make[3]: *** [drivers/usb/media/pwcx.o] Error 1
make[2]: *** [drivers/usb/media] Error 2
make[1]: *** [drivers/usb] Error 2
make: *** [drivers] Error 2

The 2.6.7 bork wasn't any better :)
Any ideas?

-- 
Conor Wynne
Dublin
Irlande

Key Fingerprint 1A95 E50F A15F 6601 A587 A9D8 4E55 1173 C2FE FAC2
Get my key here: http://www.conorwynne.com/gpg-key
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