USB Home Page: http://www.usb.org
linux-usb Mailing List Archives: http://marc.info/?l=linux-usb
USB On-the-Go Basics: http://www.maximintegrated.com/app-notes/index.mvp/id/1822
Writing USB Device Drivers: https://www.kernel.org/doc/htmldocs/writing_usb_driver/index.html
Texas Instruments USB Configuration Wiki Page: http://processors.wiki.ti.com/index.php/Usbgeneralpage
Analog Devices Blackfin MUSB Configuration: http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:musb