I am running RedHat 9. Trackball is detected and works when using the 
stock 2.4.20-9 kernel that RedHat provided.

With 2.4.21-rc1, I have included the USB and input devices in the 
kernel, as modules, and as various combinations in between. My USB 
Logitech Trackball shows up as being detected and setup, but it doesn't 
work. Attached is my config and a trimmed down dmesg. (ppa is messed up 
and floods me with messages)
I have USB vebose debugging turned on. That may help. Please let me know 
what information you might need in addition.


Thanks,
David