I have emerged ipw2200 1.0.4 several times with gentoo-sources 2.6.11-r11 (from portage) and vanilla-sources 2.6.12.2 (not using portage). This is a regular 2005.0 system (not a LiveCD or anything like that), running on a Centrino laptop (with 2200BG miniPCI). My networks consist of a Netgear DG834G (AP modem) and a DG834GT (AP modem), both running WPA-PSK TKIP security. I had to emerge ipw2200-firmware 2.3 which is also in testing at the moment. Reproducible: Always Steps to Reproduce: 1. emerge/download kernel 2. configure, build and install kernel 3. reboot 4. emerge ipw2200 (only the modules is required, the firmware from previous emerge is fine) 5. modprobe {ipw2200 ieee80211_crypt_tkip} 6. /etc/init.d/net.eth0 start (my wpa_supplicant.conf is still good) 7. start using successfully brought up network interface Actual Results: The module was properly installed, loaded, and used with the net script and wpa_supplicant to connect to a WPA-PSK TKIP secured wireless network. ipw2200 1.0.4 should be marked stable (if my small successes are enough).
This driver is not stable for all people. We have had lots of bug reports upstream about this version.