Bug#499833: chccwdev cannot set device offline in Lenny
Well now, here's something strange. I just installed packages
linux-source-2.6.26, kernel-package, and libncurses5-dev, along with all
the packages that aptitude brings in with them as prerequisites and
corequisites, and now I can get the device offline dynamically! I haven't
installed a custom kernel yet. I haven't even configured a custom kernel yet.
But after installing those packages my problem goes away!
It would appear that there is a missing package dependency here.
chccwdev appears to have a dependency on one of the packages that I just
installed. I don't know which one, but it now works! It's now up to you to
figure out what the missing dependency is and take care of it.