How do you support 2 devices on one streams driver

On most systems this seems to be fairly straightforward you have 2 streamtabs and you create 2 devices and associate them separately.
When I receive a DDI_ATTACH
I call ddi_create_minor_node
It is easy to add the new node but I don't seem to be able to configure it so that it calls the correct open entry point.
Any help appreciated.
John

Using the minor device number is what I would do if I was writing an ethernet driver for example. But all I want to do is if the user accesses device x it then calls routines via the xinfo streamtab - if device y is accessed then calls use the yinfo streamtab. It is usually a matter of registering the info structures with the system and then associating them with a device. Unfortunately Solaris seems to have :-
modlinkage -> modldrv -> x_ops -> cb_x_ops -> xinfo
which is all very well for device x
but how do you fit/ dev/y
into the picture.

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