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    SubjectRe: patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)]
    On Sun May 26, 2002 at 07:31:36AM +0200, Robert Schwebel wrote:
    > On Sat, May 25, 2002 at 06:48:53PM -0600, Erik Andersen wrote:
    > > So now we have a full 3D model of the robot, the non-liner model
    > > of the robot PID-gain space, the entire (application specific)
    > > workcell model, the robot specific forward and inverse kinematics
    > > routines, and the entire trajectory planning subsystem. And of
    > > course we now need the real-time IO subsystem to handle are the
    > > thousands of this-and-that sensors (think PLC-type behavior).
    > > etc, etc, etc. All this in the kernel? Nah...
    >
    > People are doing this (or at least something similar) in reality these
    > days... :-)

    Oh I know they are. I was doing all of this stuff while in grad
    school back in 1996, and later at my first job I was doing this
    stuff too. Had to use LynxOS back then. Would have been nice if
    we could have used Linux... I was watching RTLinux closely back
    then -- long before the patent problem. :)

    > Hopefully, your post shows clearly why there are users out there who don't
    > want to make such complex algorithms open source, and I must say I can
    > understand them.

    That was the hope. So people would understand that this isn't
    the type of application where you can just squirrel away the
    real-time bits in a device driver... Its got to be the whole
    thing,

    -Erik

    --
    Erik B. Andersen http://codepoet-consulting.com/
    --This message was written using 73% post-consumer electrons--
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