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After upgrading to latest kernel and new ivtv, the ivtv module would not install anymore. I use a Hauppauge PVR250 card on my PC.
A number of things were not right:
ivtv now expects firmware for the TV card in /lib/firmware or /usr/lib/hotplug/firmware since it moved to hotplug support in 0.4.1, where the package installs firmware in /lib/modules;
ivtv now expects the firmware files to have new names, aligned with v4l conventions (the new names can be found on the ivtvdriver.org howto page on firmware).
After moving and renaming the firmware files, loading the module would generate a segmentation fault (whilst live) or inhibit linux from booting (from boot). Both hwd and hwdetect alternatives to hotplug would try to load the ivtv module, even if it was no longer on the MODULES list in rc.conf. It soon appeared on my rc.conf's MOD_BLACKLIST to enable booting the machine at all ;-)
The following partially worked for me (ivtv still reports being unable to load msp3400 - no audio):
download ivtv-0.5.1 from ivtvdriver.org
installing v4l-kernel support by typing make v4l-checkout; make v4l-update; make v4l (where I had to modify Make.config in v4l-kernel/v4l to exclude a few modules that generated errors during compilation, like c8xx)
make
make install
installing firmware according to instructions on ivtvdriver.org (including renaming and moving the files)
separately installing two more modules for my PVR250 card (that were not present in the new kernel package and built by the v4l-kernel support): msp3400.ko and saa7115.ko into /lib/modules/2.6.15-ARCH/kernel/drivers/media/video
Of course, downgrading to previous kernel and/or ivtv may have worked as well, but I was just too curious...
Ton
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I was having problems getting ivtv working with the new kernel as well. I tried what you mentioned and I didn't get my card to work. Ivtv didn't bring up any problems and it did detect my card properly but the tuner would not initialize. I gave up and downgraded back to 2.6.14.4-2 and used the ivtv 0.4.1 modules that I compiled previously that were still in the ivtv folder of the old 2.6.14-ARCH folder and my WinTV PVR-250 works again. If nothing else, someone should change the new PKGBUILD for ivtv so that it adheres to the new ivtv standards.
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I had similar problems and have now added a bug report to Flyspray. It can be found here http://bugs.archlinux.org/task/3724
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Issues have been solved with new ivtv 0.4.2-1 release and kernel26 2.6.15-2. Thanks, Paul!
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