What is the USBA Framework?
USBA is the Solaris USB Architecture framework for USB client drivers. The first version (0.0) was designed primarily for keyboards and mice support. USBA1.0 Framework, first available as a patch in Solaris 8, is the USB software framework that allows users to connect USB 2.0 devices at their highest speeds. Some new devices will work with this framework only. Solaris 10 adds the latest USBA 2.0 framework where all USB driver interfaces were promoted to public. Refer to usb(7d) man pages for details or this blog: http://blogs.sun.com/frits/date/200506.