PA-RISC Visualize Workstation Universal Serial Bus

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USB Standards Report
There are two hardware Host Controller Interface architectures:
UHCI (Universal), and OHCI (Open). UHCI appears on Intel motherboards.
OHCI is predominant elsewhere - and is what PA-RISC workstations will use.
The underlying USB Standard is presently at release 1.1. {
http://www.usb/org
}
Driver Classes have been defined by Working Groups for ( - release level)
MS Windows API Status:
Windows provides legacy thunking code for well-behaved drivers.
The status of open Win32 USB APIs is not clear.
Unix API Status (USBDI) is at 0.8. {URL pending}
As is traditionally the case in the Unix community, standards development is well
behind implementations. USBDI APIs rely on UDI Meta Language. We’ll all need to re-
write or thunk new libraries later (and implement UDI).
Common - 1.0 Hub - 1.0 Physical I/F - 1.0
Audio - 1.0 Imaging - 1.0 Power - 1.0
HID (Human I/F Device) - 1.0 InfraRed - 0.9 Printing - 1.0
Communications - 1.09 Monitor Control - 1.0 Vendor-Specific - N/A