[Projectudi-tech] [UDI-Tech] Shipping OSes with integrated UDI

[Robert L. <ro...@sc...>]

I just occurred to me that we never announced this in this group.  Both
our current System V OSes now ship with UDI in the base OS.

UnixWare 7.1.3

        The predecessor OS to this one ("OpenUNIX 8.0.0", and please
        don't ask me who decides on these names...) was the first
        shipping OS to include UDI in 05/01.  This new version started
        shipping in December or so and contains numerous enhancements
        and conformance to the UDI implementation, all of which have
        been contributed back to the public reference port my team.

	http://www.sco.com/products/unixware713/

SCO OpenServer 5.0.7

        UDI has been available for 5.0.6 for about two years in the form
        of an installable supplement, but the integration was, uuuh,
        suboptimal.  (Hey, I *can* be a marketing guy...)  For 5.0.7, we
        did an extensive overhaul of UDI, updating it to the generation
        of code found in the UnixWare 7.1.3 product, and integrating it
        into the core OS. It now features a UDI runtime implementation
        as part of the shipping media.

	http://www.sco.com/products/openserver507/


Both products also ship with an implementation of OpenUSBDI, a USB
stack written in UDI.  UDI delivered on the promise of portability; for
the code written as conforming UDI modules, we had to make a one-line
bug fix in one of the UDI drivers to make the stack work correctly on
both OSes.[1] Of course, there were a number of other changes outside
the stack to make it all work as needed, but UDI solved the problem we
needed solving - it reduced our total development and testing cost.

RJL

[1] For the technically curious, we had some wiggle room in a DMA constraint
    where we were incompletely specifying the characteristics of the 
    allocation but the UnixWare and Linux VM systems always just happened
    to give the HCI hardware what it wanted, but the OpenServer VM system 
    did not.   The fix was to more completely specify what the hardware
    wanted.
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