How to create one node for multiple instances of hardware

I want a single minor device node to act as the interface to all instances of my hardware, in this case a co-processor chip on the PCI bus. For the number of chips found at boot time, I want requests to be dispatched, one per chip, in a round-robin. Is this possible?
I suppose one approach to solving the problem could be to set a static flag in the xxattach function (accessible to xxattach only). In xxattach the flag is set after creating the first and only node and a list of the chips is built on subsequent calls to xxattach. Xxioctl calls would have the same minor number, which could be ignored, and the command dispatched to the next chip in the list. A single node solution is preferable to a driver modification.
Thanks

I think you're going about this backwards.
Make the driver be a "normal" driver, with one instance per chip.
Then make a user-space demon that round-robins requests between available hardware.
Or have a second pseudo-driver handle arbitration.
Either way, dont try to shoe-horn the driver framework from another OS, onto solaris. That's what I presume you meant by "A single node solution is preferable to a driver modification."

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As for your question: it is discussed in sAP online help:
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Message was edited by:
AKASH TAMBI

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Sreeni Gaddam <[email protected]> wrote in message
news:[email protected]..
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How to create one node for multiple instances of hardware

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