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Node for Host Adapter????

Hi Friends,
Can anyone let me know does linux make any node for Host Adapters as it
makes for different devices e.g. /dev/hda .
Actually i wants to invoke my ioctl() function for Host Adapter to get run
time performance data of my driver on linux.These are following steps which
i did :

 1. Register the ioctl function in driver template.
 2. When i load my driver and open the node for the device which my driver
detect , id does not call the ioctl() function.
Can anybody please tell me how i can  invoke ioctl() function for Adapter

         Thanks & Regards
   	   Parveen Tandon
        Software Engineer