According to http://ipw2100.sourceforge.net the ipw2100 driver (and perhaps the ipw2200 as well?) depend on wireless-tools-27_pre23. I've had a quite unstable driver experience using wireless-tools-26 which seems to have disappeared after an upgrade to wireless-tools-27_pre23. I suggest adding an (R)DEPEND=">=net-wireless/wireless-tools-27_pre23" to the ebuild.
Created attachment 37724 [details, diff] Patch for ipw2100-0.52.ebuild -> ipw2100-0.53.ebuild Attached patch adds an RDEPEND on >=net-wireless/wireless-tools-27_pre23 along with a version bump to 0.53. The dependency on >=net-wireless/wireless-tools-27_pre23 is also mentioned in the ipw2100 FAQ (http://ipw2100.sourceforge.net/faq.php#qa_2_3).
An IRQ related problem has surfaced in the 0.53 version of ipw2100. A patch has been provided on the ipw2100-devel@lists.sourceforge.net mailing list. I've updated the diff to apply this patch.
Created attachment 37926 [details, diff] Patch for ipw2100-0.52.ebuild -> ipw2100-0.53.ebuild
Created attachment 37927 [details, diff] Patch to fix the shared IRQ issue
Created attachment 38106 [details, diff] Patch for ipw2100-0.52.ebuild -> ipw2100-0.53.ebuild This patch adds a check for CONFIG_NET_RADIO to the ebuild.
Created attachment 38107 [details, diff] Patch for ipw2100-0.52.ebuild -> ipw2100-0.53.ebuild Ooops. Fixed the whitespace in the previous patch.
Created attachment 38563 [details, diff] Correct patch to fix the shared IRQ issue A new version of the fix for shared interrupts has been released. A new ebuild will be attached shortly.
Created attachment 38564 [details, diff] Patch for ipw2100-0.52.ebuild -> ipw2100-0.53.ebuild This new version of ipw2100-053.ebuild applies the corrected patch to fix the shared IRQ issue, enables WPA for the ipw2100 driver, installs the modules using 'emake install' instead of just copying the files and fixes a small typo.
Changed summary to reflect the actual changes to the ebuild.
Created attachment 38622 [details, diff] Patch for ipw2100-0.52.ebuild -> ipw2100-0.54.ebuild Version 0.54 of the ipw2100 driver has just been released - I've updated the patch for the ebuild.
I've added net-wireless/ipw2100-0.54 to portage including the fixes mentioned above. Closing as FIXED.