Cardbus configuration in Win XP

Hi,


We are testing Cardbus with Win XP platform (Toshiba laptop). We have
the ccd1 and cvs1 pins connected. ccd2 is grounded and cvs2 is left
open. After the cardbus detection, we see the card services reading the
configuration space registers including the CIS pointer register. But
the CIS tuples are NOT being read. We would like to know the exact
sequence performed by the pcmcia driver in reading the configuration
space registers. As per cardbus system architecture, some registers
like vendor id(00h), device id(02h) etc in the configuration space are
allocated (NOT needed for cardbus). But we see that these registers are
also being read.
Also we face another problem. We see these configuration space
registers being read more than once and also it looks like the
configuration space registers are being written (as observed in logic
analyser).
Can anyone help us in clarifying the above.

Thanks in Advance and wishing You all a very Happy New Year.


Regards,
Nagu