NAME
        ObtainConfigBinding - try to get permission to bind drivers

   SYNOPSIS
        ObtainConfigBinding()


   FUNCTION
        ObtainConfigBinding gives permission to bind drivers to
        configdev structures.  it exists so two drivers at once
        do not try and own the same configdev structure.  this
        call will block until it is safe proceed.

        It is crucially important that people lock out others
        before loading new drivers.  Much of the data that is used
        to configure things is statically kept, and others need
        to be kept from using it.

        This call is built directly on Exec signalsemaphore code
        (e.g. ObtainSemaphore).

   INPUTS

   RESULTS

   EXCEPTIONS

   SEE ALSO
        releaseconfigbinding()

   BUGS