[linux-dvb] Can't compile saa7146_fops.c

["Kilian A. Foth" <foth@informatik.uni-hamburg.de>]

Hello world,

I'm trying to prepare my computer for a new Hauppauge Nova-T card
(yes, I know I should have looked out for the older, better-supported
version... and I did try, but the &#%^$ vendor posted a misleading
image of the thing). From lurking here, I inferred that I would need

 - recent kernel 2.6.9
 - current video4linux version
 - dvb-kernel CVS tree instead of the drivers from the stock kernel

so I got them and started compiling. This is how far I got:

  # get kernel source
  cd /usr/src
  tar xvjf ~/net/Linux/kernel/linux-2.6.9.tar.bz2
  cd linux-2.6.9

  # apply v4l patch
  patch -p1 < ~/net/hardware/DVB-T/bytesex/All-2.6.9-rc4.dif

  zcat /proc/config.gz > .config
  make oldconfig
  # choose M for all the DVB driver thingies
  echo -dvbt > localversion
  cd ..
  mv linux-2.6.9 linux-2.6.9-dvbt
  cd linux-2.6.9-dvbt
  make
  VERSION=$(basename `pwd` | sed s/linux-//)
  make modules_install
  cp System.map  /boot/System.map-$VERSION
  cp arch/i386/boot/bzImage  /boot/vmlinuz-$VERSION
  gnuclient /boot/grub/menu.lst
  init 6

  # build dvb-kernel modules
  tar xvjf ~/net/hardware/DVB-T/linuxtv/dvb-kernel.tar.bz2 
  cd dvb-kernel/build-2.6
  make

This make fails:

  CC [M]  /usr/src/dvb-kernel/build-2.6/saa7146_fops.o
/usr/src/dvb-kernel/build-2.6/saa7146_fops.c: In function `fops_poll':
/usr/src/dvb-kernel/build-2.6/saa7146_fops.c:361: warning: passing arg 3 of `videobuf_poll_stream' from incompatible pointer type
/usr/src/dvb-kernel/build-2.6/saa7146_fops.c:361: error: too few arguments to function `videobuf_poll_stream'
make[2]: *** [/usr/src/dvb-kernel/build-2.6/saa7146_fops.o] Error 1
make[1]: *** [_module_/usr/src/dvb-kernel/build-2.6] Error 2
make[1]: Leaving directory `/usr/src/linux-2.6.9-dvbt'
make: *** [all] Error 2


It seems to me that several places check the kernel version via 

   #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10))

to see whether to call the three-argument or the four-argument version
of functions. But as far as I can see the change to video_buf.h
happened between 2.6.8 and 2.6.9, not 2.6.10. Should the 10 here read 9,
or do I have a wrong version of something? Or am I terribly
misunderstanding something entirely other?


-- 
Kilian Foth                                    Phone +49 40 42883-2518
AB NATS, FB Informatik                         Fax   +49 40 42883-2515
Universität Hamburg
Vogt-Kölln-Str. 30
22527 Hamburg