Comment 267 for bug 88746

Some of the stuff on here is out of date... but it's still *the* place to go:

http://www.linux-usb.org/

This is 3.5 years old, but is still the relevant page:

http://www.linux-usb.org/usb2.html

The maintainer of ehci_hcd is a guy called David Brownell. He's contactable on this email: <email address hidden>