for syntax and general usage information
about this entry point routine.
PC Card driver's
routine must do the following
in addition to other code
that is required for the device type:
service to identify the logical socket,
and determine the number of valid tuple chains.
If ValidaeCIS returns a non-zero result,
the client device driver should return
an appropriate error code to the card service.
services to examine the tuples in the CIS
(Client Information Structure)
tofor specific data.
If necessary, the driver can parse the tuples
to obtain specific data
that is relevant to this particular card.